From 4aa735748914ac2f95678e57b59c69402f86a2d5 Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Tue, 9 Oct 2018 14:27:51 -0700 Subject: [PATCH 01/15] Enable LRU GC --- .../firebase/firestore/FirebaseFirestore.java | 7 +- .../firestore/FirebaseFirestoreSettings.java | 35 ++++- .../firestore/core/FirestoreClient.java | 53 ++++++- .../firebase/firestore/local/LocalStore.java | 4 + .../firebase/firestore/local/LruDelegate.java | 5 +- .../firestore/local/LruGarbageCollector.java | 145 +++++++++++++++++- .../local/MemoryLruReferenceDelegate.java | 31 +++- .../firestore/local/MemoryMutationQueue.java | 8 + .../firestore/local/MemoryPersistence.java | 6 +- .../firestore/local/MemoryQueryCache.java | 8 + .../local/MemoryRemoteDocumentCache.java | 24 +++ .../local/SQLiteLruReferenceDelegate.java | 9 +- .../firestore/local/SQLitePersistence.java | 23 ++- .../firebase/firestore/util/AsyncQueue.java | 2 + .../local/LruGarbageCollectorTestCase.java | 111 +++++++++++++- .../local/MemoryLruGarbageCollectorTest.java | 4 +- .../local/PersistenceTestHelpers.java | 23 ++- .../local/SQLiteLruGarbageCollectorTest.java | 4 +- .../firestore/spec/SQLiteSpecTest.java | 4 +- 19 files changed, 470 insertions(+), 36 deletions(-) diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestore.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestore.java index 49be0d6185b..1c72efb732f 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestore.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestore.java @@ -209,12 +209,7 @@ private void ensureClientConfigured() { new DatabaseInfo(databaseId, persistenceKey, settings.getHost(), settings.isSslEnabled()); client = - new FirestoreClient( - context, - databaseInfo, - settings.isPersistenceEnabled(), - credentialsProvider, - asyncQueue); + new FirestoreClient(context, databaseInfo, settings, credentialsProvider, asyncQueue); } } diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java index f0598e0b768..d09ef74be26 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java @@ -24,6 +24,9 @@ /** Settings used to configure a FirebaseFirestore instance. */ @PublicApi public final class FirebaseFirestoreSettings { + public static final long CACHE_SIZE_UNLIMITED = -1; + + private static final long DEFAULT_CACHE_SIZE_BYTES = 100 * 1024 * 1024; // 100mb private static final String DEFAULT_HOST = "firestore.googleapis.com"; private static final boolean DEFAULT_TIMESTAMPS_IN_SNAPSHOTS_ENABLED = false; @@ -34,6 +37,7 @@ public static final class Builder { private boolean sslEnabled; private boolean persistenceEnabled; private boolean timestampsInSnapshotsEnabled; + private long cacheSizeBytes; /** Constructs a new FirebaseFirestoreSettings Builder object. */ @PublicApi @@ -42,6 +46,7 @@ public Builder() { sslEnabled = true; persistenceEnabled = true; timestampsInSnapshotsEnabled = DEFAULT_TIMESTAMPS_IN_SNAPSHOTS_ENABLED; + cacheSizeBytes = DEFAULT_CACHE_SIZE_BYTES; } /** @@ -124,6 +129,21 @@ public Builder setTimestampsInSnapshotsEnabled(boolean value) { return this; } + /** + * Sets the cache size threshold above which the SDK will attempt to collect least-recently-used + * documents. The size is not a guarantee that the cache will stay below that size, only that if + * the cache exceeds the given size, cleanup will be attempted. + * + * @return A settings object on which the cache size is configured as specified by the given + * {@code value}. + */ + @NonNull + @PublicApi + public Builder setCacheSizeBytes(long value) { + this.cacheSizeBytes = value; + return this; + } + @NonNull @PublicApi public FirebaseFirestoreSettings build() { @@ -139,6 +159,7 @@ public FirebaseFirestoreSettings build() { private final boolean sslEnabled; private final boolean persistenceEnabled; private final boolean timestampsInSnapshotsEnabled; + private final long cacheSizeBytes; /** Constructs a FirebaseFirestoreSettings object based on the values in the Builder. */ private FirebaseFirestoreSettings(Builder builder) { @@ -146,6 +167,7 @@ private FirebaseFirestoreSettings(Builder builder) { sslEnabled = builder.sslEnabled; persistenceEnabled = builder.persistenceEnabled; timestampsInSnapshotsEnabled = builder.timestampsInSnapshotsEnabled; + cacheSizeBytes = builder.cacheSizeBytes; } @Override @@ -161,7 +183,8 @@ public boolean equals(@Nullable Object o) { return host.equals(that.host) && sslEnabled == that.sslEnabled && persistenceEnabled == that.persistenceEnabled - && timestampsInSnapshotsEnabled == that.timestampsInSnapshotsEnabled; + && timestampsInSnapshotsEnabled == that.timestampsInSnapshotsEnabled + && cacheSizeBytes == that.cacheSizeBytes; } @Override @@ -170,6 +193,7 @@ public int hashCode() { result = 31 * result + (sslEnabled ? 1 : 0); result = 31 * result + (persistenceEnabled ? 1 : 0); result = 31 * result + (timestampsInSnapshotsEnabled ? 1 : 0); + result = 31 * result + (int) cacheSizeBytes; return result; } @@ -211,4 +235,13 @@ public boolean isPersistenceEnabled() { public boolean areTimestampsInSnapshotsEnabled() { return timestampsInSnapshotsEnabled; } + + /** + * Returns the threshold for the cache size above which the SDK will attempt to collect the least + * recently used documents. + */ + @PublicApi + public long getCacheSizeBytes() { + return cacheSizeBytes; + } } diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/core/FirestoreClient.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/core/FirestoreClient.java index 0a4cf8fdc8e..2e0bc62ff13 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/core/FirestoreClient.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/core/FirestoreClient.java @@ -27,11 +27,14 @@ import com.google.firebase.firestore.EventListener; import com.google.firebase.firestore.FirebaseFirestoreException; import com.google.firebase.firestore.FirebaseFirestoreException.Code; +import com.google.firebase.firestore.FirebaseFirestoreSettings; import com.google.firebase.firestore.auth.CredentialsProvider; import com.google.firebase.firestore.auth.User; import com.google.firebase.firestore.core.EventManager.ListenOptions; import com.google.firebase.firestore.local.LocalSerializer; import com.google.firebase.firestore.local.LocalStore; +import com.google.firebase.firestore.local.LruDelegate; +import com.google.firebase.firestore.local.LruGarbageCollector; import com.google.firebase.firestore.local.MemoryPersistence; import com.google.firebase.firestore.local.Persistence; import com.google.firebase.firestore.local.SQLitePersistence; @@ -61,6 +64,11 @@ public final class FirestoreClient implements RemoteStore.RemoteStoreCallback { private static final String LOG_TAG = "FirestoreClient"; + /** How long we wait to try running LRU GC after SDK initialization. */ + private static final long INITIAL_GC_DELAY_MS = 60 * 1000; + /** Minimum amount of time between GC checks, after the first one. */ + private static final long REGULAR_GC_DELAY_MS = 5 * 60 * 1000; + private final DatabaseInfo databaseInfo; private final CredentialsProvider credentialsProvider; private final AsyncQueue asyncQueue; @@ -71,10 +79,17 @@ public final class FirestoreClient implements RemoteStore.RemoteStoreCallback { private SyncEngine syncEngine; private EventManager eventManager; + // LRU-related + private boolean gcHasRun = false; + private final long initialGcDelayMs = INITIAL_GC_DELAY_MS; + private final long regularGcDelayMs = REGULAR_GC_DELAY_MS; + @Nullable private LruDelegate lruDelegate; + @Nullable private AsyncQueue.DelayedTask gcTask; + public FirestoreClient( final Context context, DatabaseInfo databaseInfo, - final boolean usePersistence, + FirebaseFirestoreSettings settings, CredentialsProvider credentialsProvider, final AsyncQueue asyncQueue) { this.databaseInfo = databaseInfo; @@ -105,7 +120,11 @@ public FirestoreClient( try { // Block on initial user being available User initialUser = Tasks.await(firstUser.getTask()); - initialize(context, initialUser, usePersistence); + initialize( + context, + initialUser, + settings.isPersistenceEnabled(), + settings.getCacheSizeBytes()); } catch (InterruptedException | ExecutionException e) { throw new RuntimeException(e); } @@ -127,6 +146,9 @@ public Task shutdown() { () -> { remoteStore.shutdown(); persistence.shutdown(); + if (gcTask != null) { + gcTask.cancel(); + } }); } @@ -194,7 +216,7 @@ public Task transaction( () -> syncEngine.transaction(asyncQueue, updateFunction, retries)); } - private void initialize(Context context, User user, boolean usePersistence) { + private void initialize(Context context, User user, boolean usePersistence, long cacheSizeBytes) { // Note: The initialization work must all be synchronous (we can't dispatch more work) since // external write/listen operations could get queued to run before that subsequent work // completes. @@ -203,9 +225,17 @@ private void initialize(Context context, User user, boolean usePersistence) { if (usePersistence) { LocalSerializer serializer = new LocalSerializer(new RemoteSerializer(databaseInfo.getDatabaseId())); - persistence = + LruGarbageCollector.Params params = LruGarbageCollector.Params.WithCacheSize(cacheSizeBytes); + SQLitePersistence sqlitePersistence = new SQLitePersistence( - context, databaseInfo.getPersistenceKey(), databaseInfo.getDatabaseId(), serializer); + context, + databaseInfo.getPersistenceKey(), + databaseInfo.getDatabaseId(), + serializer, + params); + lruDelegate = sqlitePersistence.getReferenceDelegate(); + persistence = sqlitePersistence; + scheduleLruGarbageCollection(); } else { persistence = MemoryPersistence.createEagerGcMemoryPersistence(); } @@ -225,6 +255,19 @@ private void initialize(Context context, User user, boolean usePersistence) { remoteStore.start(); } + private void scheduleLruGarbageCollection() { + long delay = gcHasRun ? regularGcDelayMs : initialGcDelayMs; + gcTask = + asyncQueue.enqueueAfterDelay( + AsyncQueue.TimerId.GARBAGE_COLLECTION_DELAY, + delay, + () -> { + localStore.collectGarbage(lruDelegate.getGarbageCollector()); + gcHasRun = true; + scheduleLruGarbageCollection(); + }); + } + @Override public void handleRemoteEvent(RemoteEvent remoteEvent) { syncEngine.handleRemoteEvent(remoteEvent); diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LocalStore.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LocalStore.java index 64ccbb066b2..cd21401657d 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LocalStore.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LocalStore.java @@ -555,4 +555,8 @@ private void applyWriteToRemoteDocuments(MutationBatchResult batchResult) { mutationQueue.removeMutationBatch(batch); } + + public LruGarbageCollector.Results collectGarbage(LruGarbageCollector garbageCollector) { + return persistence.runTransaction("Collect garbage", () -> garbageCollector.collect(targetIds)); + } } diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruDelegate.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruDelegate.java index 569ef9415ea..62db1e6fc69 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruDelegate.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruDelegate.java @@ -21,7 +21,7 @@ * Persistence layers intending to use LRU Garbage collection should implement this interface. This * interface defines the operations that the LRU garbage collector needs from the persistence layer. */ -interface LruDelegate { +public interface LruDelegate { /** Enumerates all the targets in the QueryCache. */ void forEachTarget(Consumer consumer); @@ -49,4 +49,7 @@ interface LruDelegate { /** Access to the underlying LRU Garbage collector instance. */ LruGarbageCollector getGarbageCollector(); + + /** Return the size of the cache in bytes. */ + long getByteSize(); } diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java index 91a61731338..8d0e810691b 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java @@ -15,16 +15,82 @@ package com.google.firebase.firestore.local; import android.util.SparseArray; +import com.google.firebase.firestore.FirebaseFirestoreSettings; import com.google.firebase.firestore.core.ListenSequence; +import com.google.firebase.firestore.util.Logger; import java.util.Comparator; import java.util.PriorityQueue; /** Implements the steps for LRU garbage collection. */ -class LruGarbageCollector { +public class LruGarbageCollector { + public static class Params { + private static final long COLLECTION_DISABLED = FirebaseFirestoreSettings.CACHE_SIZE_UNLIMITED; + private static final long DEFAULT_CACHE_SIZE_BYTES = 100 * 1024 * 1024; // 100mb + + public static Params Default() { + return new Params(DEFAULT_CACHE_SIZE_BYTES, 10, 1000); + } + + public static Params Disabled() { + return new Params(COLLECTION_DISABLED, 0, 0); + } + + public static Params WithCacheSize(long cacheSizeBytes) { + return new Params(cacheSizeBytes, 10, 1000); + } + + final long minBytesThreshold; + final int percentileToCollect; + final int maximumSequenceNumbersToCollect; + + Params(long minBytesThreshold, int percentileToCollect, int maximumSequenceNumbersToCollect) { + this.minBytesThreshold = minBytesThreshold; + this.percentileToCollect = percentileToCollect; + this.maximumSequenceNumbersToCollect = maximumSequenceNumbersToCollect; + } + } + + public static class Results { + private final boolean hasRun; + private final int sequenceNumbersCollected; + private final int targetsRemoved; + private final int documentsRemoved; + + static Results DidNotRun() { + return new Results(/* hasRun= */ false, 0, 0, 0); + } + + Results( + boolean hasRun, int sequenceNumbersCollected, int targetsRemoved, int documentsRemoved) { + this.hasRun = hasRun; + this.sequenceNumbersCollected = sequenceNumbersCollected; + this.targetsRemoved = targetsRemoved; + this.documentsRemoved = documentsRemoved; + } + + public boolean hasRun() { + return hasRun; + } + + public int getSequenceNumbersCollected() { + return sequenceNumbersCollected; + } + + public int getTargetsRemoved() { + return targetsRemoved; + } + + public int getDocumentsRemoved() { + return documentsRemoved; + } + } + private final LruDelegate delegate; + private final Params params; - LruGarbageCollector(LruDelegate delegate) { + LruGarbageCollector(LruDelegate delegate, Params params) { this.delegate = delegate; + this.params = params; } /** Given a percentile of target to collect, returns the number of targets to collect. */ @@ -91,4 +157,79 @@ int removeTargets(long upperBound, SparseArray activeTargetIds) { int removeOrphanedDocuments(long upperBound) { return delegate.removeOrphanedDocuments(upperBound); } + + Results collect(SparseArray activeTargetIds) { + if (params.minBytesThreshold == Params.COLLECTION_DISABLED) { + Logger.debug("LruGarbageCollector", "Garbage collection skipped; disabled"); + return Results.DidNotRun(); + } + + long cacheSize = getByteSize(); + if (cacheSize < params.minBytesThreshold) { + Logger.debug( + "LruGarbageCollector", + "Garbage collection skipped; Cache size " + + cacheSize + + " is lower than threshold " + + params.minBytesThreshold); + return Results.DidNotRun(); + } else { + return runGarbageCollection(activeTargetIds); + } + } + + private Results runGarbageCollection(SparseArray liveTargetIds) { + long start = System.currentTimeMillis(); + int sequenceNumbers = calculateQueryCount(params.percentileToCollect); + // Cap at the configured max + if (sequenceNumbers > params.maximumSequenceNumbersToCollect) { + Logger.debug( + "LruGarbageCollector", + "Capping sequence numbers to collect down to the maximum of " + + params.maximumSequenceNumbersToCollect + + " from " + + sequenceNumbers); + sequenceNumbers = params.maximumSequenceNumbersToCollect; + } + long countedTargets = System.currentTimeMillis(); + + long upperBound = nthSequenceNumber(sequenceNumbers); + long foundUpperBound = System.currentTimeMillis(); + + int numTargetsRemoved = removeTargets(upperBound, liveTargetIds); + long removedTargets = System.currentTimeMillis(); + + int numDocumentsRemoved = removeOrphanedDocuments(upperBound); + long removedDocuments = System.currentTimeMillis(); + + // TODO(gsoltis): post-compaction? + + String desc = "LRU Garbage Collection:\n"; + desc += "\tCounted targets in " + (countedTargets - start) + "ms\n"; + desc += + "\tDetermined least recently used " + + sequenceNumbers + + " sequence numbers in " + + (foundUpperBound - countedTargets) + + "ms\n"; + desc += + "\tRemoved " + + numTargetsRemoved + + " targets in " + + (removedTargets - foundUpperBound) + + "ms\n"; + desc += + "\tRemoved " + + numDocumentsRemoved + + " documents in " + + (removedDocuments - removedTargets) + + "ms\n"; + desc += "Total Duration: " + (removedDocuments - start) + "ms"; + Logger.debug("LruGarbageCollector", desc); + return new Results(/* hasRun= */ true, sequenceNumbers, numTargetsRemoved, numDocumentsRemoved); + } + + long getByteSize() { + return delegate.getByteSize(); + } } diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryLruReferenceDelegate.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryLruReferenceDelegate.java index 5376b5f9378..56fc1df0d9d 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryLruReferenceDelegate.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryLruReferenceDelegate.java @@ -27,19 +27,24 @@ /** Provides LRU garbage collection functionality for MemoryPersistence. */ class MemoryLruReferenceDelegate implements ReferenceDelegate, LruDelegate { private final MemoryPersistence persistence; + private final LocalSerializer serializer; private final Map orphanedSequenceNumbers; private ReferenceSet inMemoryPins; private final LruGarbageCollector garbageCollector; private final ListenSequence listenSequence; private long currentSequenceNumber; - MemoryLruReferenceDelegate(MemoryPersistence persistence) { + MemoryLruReferenceDelegate( + MemoryPersistence persistence, + LruGarbageCollector.Params params, + LocalSerializer serializer) { this.persistence = persistence; + this.serializer = serializer; this.orphanedSequenceNumbers = new HashMap<>(); this.listenSequence = new ListenSequence(persistence.getQueryCache().getHighestListenSequenceNumber()); this.currentSequenceNumber = ListenSequence.INVALID; - this.garbageCollector = new LruGarbageCollector(this); + this.garbageCollector = new LruGarbageCollector(this, params); } @Override @@ -83,8 +88,12 @@ public long getTargetCount() { @Override public void forEachOrphanedDocumentSequenceNumber(Consumer consumer) { - for (Long sequenceNumber : orphanedSequenceNumbers.values()) { - consumer.accept(sequenceNumber); + for (Map.Entry entry : orphanedSequenceNumbers.entrySet()) { + // Pass in the exact sequence number as the upper bound so we know it won't be pinned by being + // too recent. + if (!isPinned(entry.getKey(), entry.getValue())) { + consumer.accept(entry.getValue()); + } } } @@ -170,4 +179,18 @@ private boolean isPinned(DocumentKey key, long upperBound) { Long sequenceNumber = orphanedSequenceNumbers.get(key); return sequenceNumber != null && sequenceNumber > upperBound; } + + @Override + public long getByteSize() { + // Note that this method is only used for testing because this delegate is only + // used for testing. The algorithm here (loop through everything, serialize it + // and count bytes) is inefficient and inexact, but won't run in production. + long count = 0; + count += persistence.getQueryCache().getByteSize(serializer); + count += persistence.getRemoteDocumentCache().getByteSize(serializer); + for (MemoryMutationQueue queue : persistence.getMutationQueues()) { + count += queue.getByteSize(serializer); + } + return count; + } } diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryMutationQueue.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryMutationQueue.java index 5ff240de16e..42769352648 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryMutationQueue.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryMutationQueue.java @@ -422,4 +422,12 @@ private int indexOfExistingBatchId(int batchId, String action) { hardAssert(index >= 0 && index < queue.size(), "Batches must exist to be %s", action); return index; } + + long getByteSize(LocalSerializer serializer) { + long count = 0; + for (MutationBatch batch : queue) { + count += serializer.encodeMutationBatch(batch).getSerializedSize(); + } + return count; + } } diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryPersistence.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryPersistence.java index 5b31f95a247..0f7698c4f03 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryPersistence.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryPersistence.java @@ -44,9 +44,11 @@ public static MemoryPersistence createEagerGcMemoryPersistence() { return persistence; } - public static MemoryPersistence createLruGcMemoryPersistence() { + public static MemoryPersistence createLruGcMemoryPersistence( + LruGarbageCollector.Params params, LocalSerializer serializer) { MemoryPersistence persistence = new MemoryPersistence(); - persistence.setReferenceDelegate(new MemoryLruReferenceDelegate(persistence)); + persistence.setReferenceDelegate( + new MemoryLruReferenceDelegate(persistence, params, serializer)); return persistence; } diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryQueryCache.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryQueryCache.java index e37a451810d..7c0315dc3fe 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryQueryCache.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryQueryCache.java @@ -169,4 +169,12 @@ public ImmutableSortedSet getMatchingKeysForTargetId(int targetId) public boolean containsKey(DocumentKey key) { return references.containsKey(key); } + + long getByteSize(LocalSerializer serializer) { + long count = 0; + for (Map.Entry entry : queries.entrySet()) { + count += serializer.encodeQueryData(entry.getValue()).getSerializedSize(); + } + return count; + } } diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryRemoteDocumentCache.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryRemoteDocumentCache.java index f4209da214a..7be0afcb76a 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryRemoteDocumentCache.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryRemoteDocumentCache.java @@ -86,4 +86,28 @@ public ImmutableSortedMap getAllDocumentsMatchingQuery(Qu ImmutableSortedMap getDocuments() { return docs; } + + /** + * Returns an estimate of the number of bytes used to store the given document key in memory. This + * is only an estimate and includes the size of the segments of the path, but not any object + * overhead or path separators. + */ + private static long getKeySize(DocumentKey key) { + ResourcePath path = key.getPath(); + long count = 0; + for (int i = 0; i < path.length(); i++) { + // Strings in java are utf-16, each character is two bytes in memory + count += path.getSegment(i).length() * 2; + } + return count; + } + + long getByteSize(LocalSerializer serializer) { + long count = 0; + for (Map.Entry entry : docs) { + count += getKeySize(entry.getKey()); + count += serializer.encodeMaybeDocument(entry.getValue()).getSerializedSize(); + } + return count; + } } diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/SQLiteLruReferenceDelegate.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/SQLiteLruReferenceDelegate.java index cee90c741cc..d846c08636a 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/SQLiteLruReferenceDelegate.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/SQLiteLruReferenceDelegate.java @@ -30,10 +30,10 @@ class SQLiteLruReferenceDelegate implements ReferenceDelegate, LruDelegate { private final LruGarbageCollector garbageCollector; private ReferenceSet inMemoryPins; - SQLiteLruReferenceDelegate(SQLitePersistence persistence) { + SQLiteLruReferenceDelegate(SQLitePersistence persistence, LruGarbageCollector.Params params) { this.currentSequenceNumber = ListenSequence.INVALID; this.persistence = persistence; - this.garbageCollector = new LruGarbageCollector(this); + this.garbageCollector = new LruGarbageCollector(this, params); } void start(long highestSequenceNumber) { @@ -179,4 +179,9 @@ private void writeSentinel(DocumentKey key) { path, getCurrentSequenceNumber()); } + + @Override + public long getByteSize() { + return persistence.getByteSize(); + } } diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/SQLitePersistence.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/SQLitePersistence.java index 891aa091729..e8a1b31cf0d 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/SQLitePersistence.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/SQLitePersistence.java @@ -33,6 +33,7 @@ import com.google.firebase.firestore.util.Consumer; import com.google.firebase.firestore.util.Logger; import com.google.firebase.firestore.util.Supplier; +import java.io.File; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; import javax.annotation.Nullable; @@ -71,19 +72,25 @@ public static String databaseName(String persistenceKey, DatabaseId databaseId) private final OpenHelper opener; private final LocalSerializer serializer; private SQLiteDatabase db; + private File databasePath; private boolean started; private final SQLiteQueryCache queryCache; private final SQLiteRemoteDocumentCache remoteDocumentCache; private final SQLiteLruReferenceDelegate referenceDelegate; public SQLitePersistence( - Context context, String persistenceKey, DatabaseId databaseId, LocalSerializer serializer) { + Context context, + String persistenceKey, + DatabaseId databaseId, + LocalSerializer serializer, + LruGarbageCollector.Params params) { String databaseName = databaseName(persistenceKey, databaseId); this.opener = new OpenHelper(context, databaseName); + this.databasePath = context.getDatabasePath(databaseName); this.serializer = serializer; this.queryCache = new SQLiteQueryCache(this, this.serializer); this.remoteDocumentCache = new SQLiteRemoteDocumentCache(this, this.serializer); - this.referenceDelegate = new SQLiteLruReferenceDelegate(this); + this.referenceDelegate = new SQLiteLruReferenceDelegate(this, params); } @Override @@ -122,7 +129,7 @@ public boolean isStarted() { } @Override - public ReferenceDelegate getReferenceDelegate() { + public SQLiteLruReferenceDelegate getReferenceDelegate() { return referenceDelegate; } @@ -143,6 +150,9 @@ RemoteDocumentCache getRemoteDocumentCache() { @Override void runTransaction(String action, Runnable operation) { + hardAssert( + !db.inTransaction(), + "Trying to start a transaction while another transaction is still active"); try { Logger.debug(TAG, "Starting transaction: %s", action); referenceDelegate.onTransactionStarted(); @@ -159,6 +169,9 @@ void runTransaction(String action, Runnable operation) { @Override T runTransaction(String action, Supplier operation) { + hardAssert( + !db.inTransaction(), + "Trying to start a transaction while another transaction is still active"); try { Logger.debug(TAG, "Starting transaction: %s", action); referenceDelegate.onTransactionStarted(); @@ -174,6 +187,10 @@ T runTransaction(String action, Supplier operation) { } } + long getByteSize() { + return databasePath.length(); + } + /** * A SQLiteOpenHelper that configures database connections just the way we like them, delegating * to SQLiteSchema to actually do the work of migration. diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/util/AsyncQueue.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/util/AsyncQueue.java index bef4ee4b12f..9733f14776c 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/util/AsyncQueue.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/util/AsyncQueue.java @@ -68,6 +68,8 @@ public enum TimerId { * set timeout, rather than waiting indefinitely for success or failure. */ ONLINE_STATE_TIMEOUT, + /** A timer used to periodically attempt LRU Garbage collection */ + GARBAGE_COLLECTION_DELAY } /** diff --git a/firebase-firestore/src/test/java/com/google/firebase/firestore/local/LruGarbageCollectorTestCase.java b/firebase-firestore/src/test/java/com/google/firebase/firestore/local/LruGarbageCollectorTestCase.java index 11cbc6a3493..8701cc47e4a 100644 --- a/firebase-firestore/src/test/java/com/google/firebase/firestore/local/LruGarbageCollectorTestCase.java +++ b/firebase-firestore/src/test/java/com/google/firebase/firestore/local/LruGarbageCollectorTestCase.java @@ -55,12 +55,13 @@ public abstract class LruGarbageCollectorTestCase { private MutationQueue mutationQueue; private RemoteDocumentCache documentCache; private LruGarbageCollector garbageCollector; + private LruGarbageCollector.Params lruParams; private int previousTargetId; private int previousDocNum; private long initialSequenceNumber; private ObjectValue testValue; - abstract Persistence createPersistence(); + abstract Persistence createPersistence(LruGarbageCollector.Params params); @Before public void setUp() { @@ -81,7 +82,11 @@ public void tearDown() { } private void newTestResources() { - persistence = createPersistence(); + newTestResources(LruGarbageCollector.Params.Default()); + } + + private void newTestResources(LruGarbageCollector.Params params) { + persistence = createPersistence(params); persistence.getReferenceDelegate().setInMemoryPins(new ReferenceSet()); queryCache = persistence.getQueryCache(); documentCache = persistence.getRemoteDocumentCache(); @@ -89,6 +94,7 @@ private void newTestResources() { mutationQueue = persistence.getMutationQueue(user); initialSequenceNumber = queryCache.getHighestListenSequenceNumber(); garbageCollector = ((LruDelegate) persistence.getReferenceDelegate()).getGarbageCollector(); + lruParams = params; } private QueryData nextQueryData() { @@ -587,4 +593,105 @@ public void testRemoveTargetsThenGC() { } }); } + + @Test + public void testGetsSize() { + long initialSize = garbageCollector.getByteSize(); + + persistence.runTransaction( + "fill cache", + () -> { + // Simulate a bunch of ack'd mutations + for (int i = 0; i < 50; i++) { + Document doc = cacheADocumentInTransaction(); + markDocumentEligibleForGcInTransaction(doc.getKey()); + } + }); + + long finalSize = garbageCollector.getByteSize(); + assertTrue(finalSize > initialSize); + } + + @Test + public void testDisabled() { + LruGarbageCollector.Params params = LruGarbageCollector.Params.Disabled(); + + // Switch out the test resources for ones with a disabled GC. + persistence.shutdown(); + newTestResources(params); + + persistence.runTransaction( + "Fill cache", + () -> { + // Simulate a bunch of ack'd mutations + for (int i = 0; i < 500; i++) { + Document doc = cacheADocumentInTransaction(); + markDocumentEligibleForGcInTransaction(doc.getKey()); + } + }); + + LruGarbageCollector.Results results = + persistence.runTransaction("GC", () -> garbageCollector.collect(new SparseArray<>())); + + assertFalse(results.hasRun()); + } + + @Test + public void testCacheTooSmall() { + // Default LRU Params are ok for this test. + + persistence.runTransaction( + "Fill cache", + () -> { + // Simulate a bunch of ack'd mutations + for (int i = 0; i < 50; i++) { + Document doc = cacheADocumentInTransaction(); + markDocumentEligibleForGcInTransaction(doc.getKey()); + } + }); + + // Make sure we're under the target size + long cacheSize = garbageCollector.getByteSize(); + assertTrue(cacheSize < lruParams.minBytesThreshold); + + LruGarbageCollector.Results results = + persistence.runTransaction("GC", () -> garbageCollector.collect(new SparseArray<>())); + + assertFalse(results.hasRun()); + } + + @Test + public void testGCRan() { + // Set a low byte threshold so we can guarantee that GC will run. + LruGarbageCollector.Params params = LruGarbageCollector.Params.WithCacheSize(100); + + // Switch to persistence using our new params. + persistence.shutdown(); + newTestResources(params); + + // Add 100 targets and 10 documents to each + for (int i = 0; i < 100; i++) { + // Use separate transactions so that each target and associated documents get their own + // sequence number. + persistence.runTransaction( + "Add a target and some documents", + () -> { + QueryData queryData = addNextQueryInTransaction(); + for (int j = 0; j < 10; j++) { + Document doc = cacheADocumentInTransaction(); + addDocumentToTarget(doc.getKey(), queryData.getTargetId()); + } + }); + } + + // Mark nothing as live, so everything is eligible. + LruGarbageCollector.Results results = + persistence.runTransaction("GC", () -> garbageCollector.collect(new SparseArray<>())); + + // By default, we collect 10% of the sequence numbers. Since we added 100 targets, + // that should be 10 targets with 10 documents each, for a total of 100 documents. + assertTrue(results.hasRun()); + assertEquals(10, results.getTargetsRemoved()); + assertEquals(100, results.getDocumentsRemoved()); + } } diff --git a/firebase-firestore/src/test/java/com/google/firebase/firestore/local/MemoryLruGarbageCollectorTest.java b/firebase-firestore/src/test/java/com/google/firebase/firestore/local/MemoryLruGarbageCollectorTest.java index 98074286836..52ed3f456b9 100644 --- a/firebase-firestore/src/test/java/com/google/firebase/firestore/local/MemoryLruGarbageCollectorTest.java +++ b/firebase-firestore/src/test/java/com/google/firebase/firestore/local/MemoryLruGarbageCollectorTest.java @@ -22,7 +22,7 @@ @Config(manifest = Config.NONE) public class MemoryLruGarbageCollectorTest extends LruGarbageCollectorTestCase { @Override - Persistence createPersistence() { - return PersistenceTestHelpers.createLRUMemoryPersistence(); + Persistence createPersistence(LruGarbageCollector.Params params) { + return PersistenceTestHelpers.createLRUMemoryPersistence(params); } } diff --git a/firebase-firestore/src/test/java/com/google/firebase/firestore/local/PersistenceTestHelpers.java b/firebase-firestore/src/test/java/com/google/firebase/firestore/local/PersistenceTestHelpers.java index e3dfb2669e5..f816937667b 100644 --- a/firebase-firestore/src/test/java/com/google/firebase/firestore/local/PersistenceTestHelpers.java +++ b/firebase-firestore/src/test/java/com/google/firebase/firestore/local/PersistenceTestHelpers.java @@ -25,10 +25,16 @@ public final class PersistenceTestHelpers { private static int databaseNameCounter = 0; public static SQLitePersistence openSQLitePersistence(String name) { + return openSQLitePersistence(name, LruGarbageCollector.Params.Default()); + } + + public static SQLitePersistence openSQLitePersistence( + String name, LruGarbageCollector.Params params) { DatabaseId databaseId = DatabaseId.forProject("projectId"); LocalSerializer serializer = new LocalSerializer(new RemoteSerializer(databaseId)); Context context = RuntimeEnvironment.application; - SQLitePersistence persistence = new SQLitePersistence(context, name, databaseId, serializer); + SQLitePersistence persistence = + new SQLitePersistence(context, name, databaseId, serializer, params); persistence.start(); return persistence; } @@ -43,10 +49,14 @@ public static String nextSQLiteDatabaseName() { * @return a new SQLitePersistence with an empty database and an up-to-date schema. */ public static SQLitePersistence createSQLitePersistence() { + return createSQLitePersistence(LruGarbageCollector.Params.Default()); + } + + public static SQLitePersistence createSQLitePersistence(LruGarbageCollector.Params params) { // Robolectric's test runner will clear out the application database directory in between test // cases, but sometimes (particularly the spec tests) we create multiple databases per test // case and each should be fresh. A unique name is sufficient to keep these separate. - return openSQLitePersistence(nextSQLiteDatabaseName()); + return openSQLitePersistence(nextSQLiteDatabaseName(), params); } /** Creates and starts a new MemoryPersistence instance for testing. */ @@ -57,7 +67,14 @@ public static MemoryPersistence createEagerGCMemoryPersistence() { } public static MemoryPersistence createLRUMemoryPersistence() { - MemoryPersistence persistence = MemoryPersistence.createLruGcMemoryPersistence(); + return createLRUMemoryPersistence(LruGarbageCollector.Params.Default()); + } + + public static MemoryPersistence createLRUMemoryPersistence(LruGarbageCollector.Params params) { + DatabaseId databaseId = DatabaseId.forProject("projectId"); + LocalSerializer serializer = new LocalSerializer(new RemoteSerializer(databaseId)); + MemoryPersistence persistence = + MemoryPersistence.createLruGcMemoryPersistence(params, serializer); persistence.start(); return persistence; } diff --git a/firebase-firestore/src/test/java/com/google/firebase/firestore/local/SQLiteLruGarbageCollectorTest.java b/firebase-firestore/src/test/java/com/google/firebase/firestore/local/SQLiteLruGarbageCollectorTest.java index 792cce7c096..e3e2838eeff 100644 --- a/firebase-firestore/src/test/java/com/google/firebase/firestore/local/SQLiteLruGarbageCollectorTest.java +++ b/firebase-firestore/src/test/java/com/google/firebase/firestore/local/SQLiteLruGarbageCollectorTest.java @@ -22,7 +22,7 @@ @Config(manifest = Config.NONE) public class SQLiteLruGarbageCollectorTest extends LruGarbageCollectorTestCase { @Override - Persistence createPersistence() { - return PersistenceTestHelpers.createSQLitePersistence(); + Persistence createPersistence(LruGarbageCollector.Params params) { + return PersistenceTestHelpers.createSQLitePersistence(params); } } diff --git a/firebase-firestore/src/test/java/com/google/firebase/firestore/spec/SQLiteSpecTest.java b/firebase-firestore/src/test/java/com/google/firebase/firestore/spec/SQLiteSpecTest.java index 011215b7454..c8940dbc14e 100644 --- a/firebase-firestore/src/test/java/com/google/firebase/firestore/spec/SQLiteSpecTest.java +++ b/firebase-firestore/src/test/java/com/google/firebase/firestore/spec/SQLiteSpecTest.java @@ -14,6 +14,7 @@ package com.google.firebase.firestore.spec; +import com.google.firebase.firestore.local.LruGarbageCollector; import com.google.firebase.firestore.local.Persistence; import com.google.firebase.firestore.local.PersistenceTestHelpers; import java.util.Set; @@ -43,7 +44,8 @@ protected void specTearDown() throws Exception { @Override Persistence getPersistence(boolean garbageCollectionEnabled) { - return PersistenceTestHelpers.openSQLitePersistence(databaseName); + return PersistenceTestHelpers.openSQLitePersistence( + databaseName, LruGarbageCollector.Params.Default()); } @Override From 6163a6368611ed18c1b7998564ceb84ff57920a5 Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Tue, 9 Oct 2018 14:38:23 -0700 Subject: [PATCH 02/15] Add minimum cache size --- .../google/firebase/firestore/FirebaseFirestoreSettings.java | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java index d09ef74be26..f2b52be6c08 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java @@ -26,6 +26,7 @@ public final class FirebaseFirestoreSettings { public static final long CACHE_SIZE_UNLIMITED = -1; + private static final long MINIMUM_CACHE_BYTES = 1 * 1024 * 1024; // 1mb private static final long DEFAULT_CACHE_SIZE_BYTES = 100 * 1024 * 1024; // 100mb private static final String DEFAULT_HOST = "firestore.googleapis.com"; private static final boolean DEFAULT_TIMESTAMPS_IN_SNAPSHOTS_ENABLED = false; @@ -140,6 +141,9 @@ public Builder setTimestampsInSnapshotsEnabled(boolean value) { @NonNull @PublicApi public Builder setCacheSizeBytes(long value) { + if (value != CACHE_SIZE_UNLIMITED && value < MINIMUM_CACHE_BYTES) { + throw new IllegalArgumentException("Cache size must be set to at least " + MINIMUM_CACHE_BYTES + " bytes"); + } this.cacheSizeBytes = value; return this; } From b392c4ff3eeb729f9cea8c27f9fcedc34a5a9aa5 Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Tue, 9 Oct 2018 16:05:37 -0700 Subject: [PATCH 03/15] Formatting --- .../google/firebase/firestore/FirebaseFirestoreSettings.java | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java index f2b52be6c08..aaf12bf5704 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java @@ -142,7 +142,8 @@ public Builder setTimestampsInSnapshotsEnabled(boolean value) { @PublicApi public Builder setCacheSizeBytes(long value) { if (value != CACHE_SIZE_UNLIMITED && value < MINIMUM_CACHE_BYTES) { - throw new IllegalArgumentException("Cache size must be set to at least " + MINIMUM_CACHE_BYTES + " bytes"); + throw new IllegalArgumentException( + "Cache size must be set to at least " + MINIMUM_CACHE_BYTES + " bytes"); } this.cacheSizeBytes = value; return this; From 096a9d2982c7821ef2ad18902105a26f0120082a Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Fri, 12 Oct 2018 08:22:10 -0700 Subject: [PATCH 04/15] Add public api and comment to CACHE_SIZE_UNLIMITED --- .../firebase/firestore/FirebaseFirestoreSettings.java | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java index aaf12bf5704..0e7d9d94d21 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java @@ -24,6 +24,12 @@ /** Settings used to configure a FirebaseFirestore instance. */ @PublicApi public final class FirebaseFirestoreSettings { + /** + * Set this constant as the value for + * {@link FirebaseFirestoreSettings.Builder#setCacheSizeBytes(long)} to disable + * garbage collection. + */ + @PublicApi public static final long CACHE_SIZE_UNLIMITED = -1; private static final long MINIMUM_CACHE_BYTES = 1 * 1024 * 1024; // 1mb From 2528b78d24d613ee46da31199541302484d7655a Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Fri, 12 Oct 2018 11:24:03 -0700 Subject: [PATCH 05/15] Review feedback --- .../firestore/FirebaseFirestoreSettings.java | 12 ++- .../firestore/core/FirestoreClient.java | 14 ++-- .../firestore/local/LruGarbageCollector.java | 78 +++++++++++-------- .../firebase/firestore/util/AsyncQueue.java | 2 +- .../local/LruGarbageCollectorTestCase.java | 14 ++-- 5 files changed, 67 insertions(+), 53 deletions(-) diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java index 0e7d9d94d21..aa748e82b7d 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java @@ -25,15 +25,13 @@ @PublicApi public final class FirebaseFirestoreSettings { /** - * Set this constant as the value for - * {@link FirebaseFirestoreSettings.Builder#setCacheSizeBytes(long)} to disable - * garbage collection. + * Set this constant as the value for {@link + * FirebaseFirestoreSettings.Builder#setCacheSizeBytes(long)} to disable garbage collection. */ - @PublicApi - public static final long CACHE_SIZE_UNLIMITED = -1; + @PublicApi public static final long CACHE_SIZE_UNLIMITED = -1; - private static final long MINIMUM_CACHE_BYTES = 1 * 1024 * 1024; // 1mb - private static final long DEFAULT_CACHE_SIZE_BYTES = 100 * 1024 * 1024; // 100mb + private static final long MINIMUM_CACHE_BYTES = 1 * 1024 * 1024; // 1 MB + private static final long DEFAULT_CACHE_SIZE_BYTES = 100 * 1024 * 1024; // 100 MB private static final String DEFAULT_HOST = "firestore.googleapis.com"; private static final boolean DEFAULT_TIMESTAMPS_IN_SNAPSHOTS_ENABLED = false; diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/core/FirestoreClient.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/core/FirestoreClient.java index 2e0bc62ff13..79439f6cf3b 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/core/FirestoreClient.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/core/FirestoreClient.java @@ -54,6 +54,7 @@ import java.util.Collections; import java.util.List; import java.util.concurrent.ExecutionException; +import java.util.concurrent.TimeUnit; import java.util.concurrent.atomic.AtomicBoolean; /** @@ -65,9 +66,9 @@ public final class FirestoreClient implements RemoteStore.RemoteStoreCallback { private static final String LOG_TAG = "FirestoreClient"; /** How long we wait to try running LRU GC after SDK initialization. */ - private static final long INITIAL_GC_DELAY_MS = 60 * 1000; + private static final long INITIAL_GC_DELAY_MS = TimeUnit.MINUTES.toMillis(1); /** Minimum amount of time between GC checks, after the first one. */ - private static final long REGULAR_GC_DELAY_MS = 5 * 60 * 1000; + private static final long REGULAR_GC_DELAY_MS = TimeUnit.MINUTES.toMillis(5); private final DatabaseInfo databaseInfo; private final CredentialsProvider credentialsProvider; @@ -81,8 +82,6 @@ public final class FirestoreClient implements RemoteStore.RemoteStoreCallback { // LRU-related private boolean gcHasRun = false; - private final long initialGcDelayMs = INITIAL_GC_DELAY_MS; - private final long regularGcDelayMs = REGULAR_GC_DELAY_MS; @Nullable private LruDelegate lruDelegate; @Nullable private AsyncQueue.DelayedTask gcTask; @@ -225,7 +224,8 @@ private void initialize(Context context, User user, boolean usePersistence, long if (usePersistence) { LocalSerializer serializer = new LocalSerializer(new RemoteSerializer(databaseInfo.getDatabaseId())); - LruGarbageCollector.Params params = LruGarbageCollector.Params.WithCacheSize(cacheSizeBytes); + LruGarbageCollector.Params params = + LruGarbageCollector.Params.WithCacheSizeBytes(cacheSizeBytes); SQLitePersistence sqlitePersistence = new SQLitePersistence( context, @@ -256,10 +256,10 @@ private void initialize(Context context, User user, boolean usePersistence, long } private void scheduleLruGarbageCollection() { - long delay = gcHasRun ? regularGcDelayMs : initialGcDelayMs; + long delay = gcHasRun ? REGULAR_GC_DELAY_MS : INITIAL_GC_DELAY_MS; gcTask = asyncQueue.enqueueAfterDelay( - AsyncQueue.TimerId.GARBAGE_COLLECTION_DELAY, + AsyncQueue.TimerId.GARBAGE_COLLECTION, delay, () -> { localStore.collectGarbage(lruDelegate.getGarbageCollector()); diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java index 8d0e810691b..722fc3df75a 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java @@ -19,6 +19,7 @@ import com.google.firebase.firestore.core.ListenSequence; import com.google.firebase.firestore.util.Logger; import java.util.Comparator; +import java.util.Locale; import java.util.PriorityQueue; /** Implements the steps for LRU garbage collection. */ @@ -26,16 +27,29 @@ public class LruGarbageCollector { public static class Params { private static final long COLLECTION_DISABLED = FirebaseFirestoreSettings.CACHE_SIZE_UNLIMITED; private static final long DEFAULT_CACHE_SIZE_BYTES = 100 * 1024 * 1024; // 100mb + /** + * The following two constants are estimates for how we want to tune the garbage collector. If + * we encounter a large cache, we don't want to spend a large chunk of time GCing all of it, we + * would rather make some progress and then try again later. We also don't want to collect + * everything that we possibly could, as our thesis is that recently used items are more likely + * to be used again. + */ + private static final int DEFAULT_COLLECTION_PERCENTILE = 10; + + private static final int DEFAULT_MAX_SEQUENCE_NUMBERS_TO_COLLECT = 1000; public static Params Default() { - return new Params(DEFAULT_CACHE_SIZE_BYTES, 10, 1000); + return new Params( + DEFAULT_CACHE_SIZE_BYTES, + DEFAULT_COLLECTION_PERCENTILE, + DEFAULT_MAX_SEQUENCE_NUMBERS_TO_COLLECT); } public static Params Disabled() { return new Params(COLLECTION_DISABLED, 0, 0); } - public static Params WithCacheSize(long cacheSizeBytes) { + public static Params WithCacheSizeBytes(long cacheSizeBytes) { return new Params(cacheSizeBytes, 10, 1000); } @@ -132,7 +146,7 @@ long getMaxValue() { } /** Returns the nth sequence number, counting in order from the smallest. */ - long nthSequenceNumber(int count) { + long getNthSequenceNumber(int count) { if (count == 0) { return ListenSequence.INVALID; } @@ -179,7 +193,7 @@ Results collect(SparseArray activeTargetIds) { } private Results runGarbageCollection(SparseArray liveTargetIds) { - long start = System.currentTimeMillis(); + long startTs = System.currentTimeMillis(); int sequenceNumbers = calculateQueryCount(params.percentileToCollect); // Cap at the configured max if (sequenceNumbers > params.maximumSequenceNumbersToCollect) { @@ -191,41 +205,43 @@ private Results runGarbageCollection(SparseArray liveTargetIds) { + sequenceNumbers); sequenceNumbers = params.maximumSequenceNumbersToCollect; } - long countedTargets = System.currentTimeMillis(); + long countedTargetsTs = System.currentTimeMillis(); - long upperBound = nthSequenceNumber(sequenceNumbers); - long foundUpperBound = System.currentTimeMillis(); + long upperBound = getNthSequenceNumber(sequenceNumbers); + long foundUpperBoundTs = System.currentTimeMillis(); int numTargetsRemoved = removeTargets(upperBound, liveTargetIds); - long removedTargets = System.currentTimeMillis(); + long removedTargetsTs = System.currentTimeMillis(); int numDocumentsRemoved = removeOrphanedDocuments(upperBound); - long removedDocuments = System.currentTimeMillis(); + long removedDocumentsTs = System.currentTimeMillis(); // TODO(gsoltis): post-compaction? - String desc = "LRU Garbage Collection:\n"; - desc += "\tCounted targets in " + (countedTargets - start) + "ms\n"; - desc += - "\tDetermined least recently used " - + sequenceNumbers - + " sequence numbers in " - + (foundUpperBound - countedTargets) - + "ms\n"; - desc += - "\tRemoved " - + numTargetsRemoved - + " targets in " - + (removedTargets - foundUpperBound) - + "ms\n"; - desc += - "\tRemoved " - + numDocumentsRemoved - + " documents in " - + (removedDocuments - removedTargets) - + "ms\n"; - desc += "Total Duration: " + (removedDocuments - start) + "ms"; - Logger.debug("LruGarbageCollector", desc); + if (Logger.isDebugEnabled()) { + String desc = "LRU Garbage Collection:\n"; + desc += "\tCounted targets in " + (countedTargetsTs - startTs) + "ms\n"; + desc += + String.format( + Locale.ROOT, + "\tDetermined least recently used %d sequence numbers in %dms", + sequenceNumbers, + (foundUpperBoundTs - countedTargetsTs)); + desc += + String.format( + Locale.ROOT, + "\tRemoved %d targets in %dms\n", + numTargetsRemoved, + (removedTargetsTs - foundUpperBoundTs)); + desc += + String.format( + Locale.ROOT, + "\tRemoved %d documents in %dms\n", + numDocumentsRemoved, + (removedDocumentsTs - removedTargetsTs)); + desc += String.format(Locale.ROOT, "Total Duration: %dms", (removedDocumentsTs - startTs)); + Logger.debug("LruGarbageCollector", desc); + } return new Results(/* hasRun= */ true, sequenceNumbers, numTargetsRemoved, numDocumentsRemoved); } diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/util/AsyncQueue.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/util/AsyncQueue.java index 9733f14776c..4954c14dc70 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/util/AsyncQueue.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/util/AsyncQueue.java @@ -69,7 +69,7 @@ public enum TimerId { */ ONLINE_STATE_TIMEOUT, /** A timer used to periodically attempt LRU Garbage collection */ - GARBAGE_COLLECTION_DELAY + GARBAGE_COLLECTION } /** diff --git a/firebase-firestore/src/test/java/com/google/firebase/firestore/local/LruGarbageCollectorTestCase.java b/firebase-firestore/src/test/java/com/google/firebase/firestore/local/LruGarbageCollectorTestCase.java index 8701cc47e4a..65bdab22b17 100644 --- a/firebase-firestore/src/test/java/com/google/firebase/firestore/local/LruGarbageCollectorTestCase.java +++ b/firebase-firestore/src/test/java/com/google/firebase/firestore/local/LruGarbageCollectorTestCase.java @@ -199,7 +199,7 @@ public void testPickSequenceNumberPercentile() { @Test public void testSequenceNumberNoQueries() { - assertEquals(ListenSequence.INVALID, garbageCollector.nthSequenceNumber(0)); + assertEquals(ListenSequence.INVALID, garbageCollector.getNthSequenceNumber(0)); } @Test @@ -209,7 +209,7 @@ public void testSequenceNumberForFiftyQueries() { for (int i = 0; i < 50; i++) { addNextQuery(); } - assertEquals(initialSequenceNumber + 10, garbageCollector.nthSequenceNumber(10)); + assertEquals(initialSequenceNumber + 10, garbageCollector.getNthSequenceNumber(10)); } @Test @@ -226,7 +226,7 @@ public void testSequenceNumberForMultipleQueriesInATransaction() { for (int i = 9; i < 50; i++) { addNextQuery(); } - assertEquals(2 + initialSequenceNumber, garbageCollector.nthSequenceNumber(10)); + assertEquals(2 + initialSequenceNumber, garbageCollector.getNthSequenceNumber(10)); } @Test @@ -246,7 +246,7 @@ public void testAllCollectedQueriesInSingleTransaction() { for (int i = 11; i < 50; i++) { addNextQuery(); } - assertEquals(1 + initialSequenceNumber, garbageCollector.nthSequenceNumber(10)); + assertEquals(1 + initialSequenceNumber, garbageCollector.getNthSequenceNumber(10)); } @Test @@ -257,7 +257,7 @@ public void testSequenceNumbersWithMutationAndSequentialQueries() { for (int i = 0; i < 50; i++) { addNextQuery(); } - assertEquals(10 + initialSequenceNumber, garbageCollector.nthSequenceNumber(10)); + assertEquals(10 + initialSequenceNumber, garbageCollector.getNthSequenceNumber(10)); } @Test @@ -285,7 +285,7 @@ public void testSequenceNumbersWithMutationsInQueries() { addDocumentToTarget(docInQuery, queryData.getTargetId()); }); // This should catch the remaining 8 documents, plus the first two queries we added. - assertEquals(3 + initialSequenceNumber, garbageCollector.nthSequenceNumber(10)); + assertEquals(3 + initialSequenceNumber, garbageCollector.getNthSequenceNumber(10)); } @Test @@ -663,7 +663,7 @@ public void testCacheTooSmall() { @Test public void testGCRan() { // Set a low byte threshold so we can guarantee that GC will run. - LruGarbageCollector.Params params = LruGarbageCollector.Params.WithCacheSize(100); + LruGarbageCollector.Params params = LruGarbageCollector.Params.WithCacheSizeBytes(100); // Switch to persistence using our new params. persistence.shutdown(); From b406fd4c0eaefc37da7888dd85b807767cccf7b6 Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Fri, 12 Oct 2018 11:44:09 -0700 Subject: [PATCH 06/15] Update comment on cache size --- .../firebase/firestore/FirebaseFirestoreSettings.java | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java index aa748e82b7d..d9c07c21295 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java @@ -135,9 +135,12 @@ public Builder setTimestampsInSnapshotsEnabled(boolean value) { } /** - * Sets the cache size threshold above which the SDK will attempt to collect least-recently-used - * documents. The size is not a guarantee that the cache will stay below that size, only that if - * the cache exceeds the given size, cleanup will be attempted. + * Sets a cache size threshold for the on-disk data. If the cache grows beyond this size, + * Firestore will start removing data that hasn't been recently used. The size is not a + * guarantee that the cache will stay below that size, only that if the cache exceeds the given + * size, cleanup will be attempted. + * + * The default value is 100 MB. * * @return A settings object on which the cache size is configured as specified by the given * {@code value}. From cdbfa86250a999da657b2eab995195c10418750f Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Fri, 12 Oct 2018 11:53:16 -0700 Subject: [PATCH 07/15] Formatting --- .../google/firebase/firestore/FirebaseFirestoreSettings.java | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java index d9c07c21295..ace402b9b29 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java @@ -140,7 +140,7 @@ public Builder setTimestampsInSnapshotsEnabled(boolean value) { * guarantee that the cache will stay below that size, only that if the cache exceeds the given * size, cleanup will be attempted. * - * The default value is 100 MB. + *

The default value is 100 MB. * * @return A settings object on which the cache size is configured as specified by the given * {@code value}. From a67b447a9b54f14038d831e4479b90822df17dfb Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Fri, 12 Oct 2018 13:38:40 -0700 Subject: [PATCH 08/15] Update comment --- .../firebase/firestore/FirebaseFirestoreSettings.java | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java index ace402b9b29..83fceb90dce 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java @@ -135,12 +135,13 @@ public Builder setTimestampsInSnapshotsEnabled(boolean value) { } /** - * Sets a cache size threshold for the on-disk data. If the cache grows beyond this size, - * Firestore will start removing data that hasn't been recently used. The size is not a + * Sets an approximate cache size threshold for the on-disk data. If the cache grows beyond this + * size, Firestore will start removing data that hasn't been recently used. The size is not a * guarantee that the cache will stay below that size, only that if the cache exceeds the given * size, cleanup will be attempted. * - *

The default value is 100 MB. + *

The default value is 100 MB. The cache size must be set to at least 1 MB, and can be set + * to {@link FirebaseFirestoreSettings#CACHE_SIZE_UNLIMITED} to disable garbage collection. * * @return A settings object on which the cache size is configured as specified by the given * {@code value}. From 358ded886c959fa589d67849b858d76bc195f663 Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Wed, 17 Oct 2018 10:22:48 -0700 Subject: [PATCH 09/15] Update comment --- .../google/firebase/firestore/FirebaseFirestoreSettings.java | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java index 83fceb90dce..fa1ee3f02f6 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java @@ -140,7 +140,7 @@ public Builder setTimestampsInSnapshotsEnabled(boolean value) { * guarantee that the cache will stay below that size, only that if the cache exceeds the given * size, cleanup will be attempted. * - *

The default value is 100 MB. The cache size must be set to at least 1 MB, and can be set + *

The default value is 100 MB. The threshold must be set to at least 1 MB, and can be set * to {@link FirebaseFirestoreSettings#CACHE_SIZE_UNLIMITED} to disable garbage collection. * * @return A settings object on which the cache size is configured as specified by the given From 8cb050a63763f1e3a8891990981d3cd2654eb9ac Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Thu, 18 Oct 2018 11:55:35 -0700 Subject: [PATCH 10/15] Update comment --- .../google/firebase/firestore/FirebaseFirestoreSettings.java | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java index fa1ee3f02f6..afadfca0560 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java @@ -25,7 +25,7 @@ @PublicApi public final class FirebaseFirestoreSettings { /** - * Set this constant as the value for {@link + * Constant to use with {@link * FirebaseFirestoreSettings.Builder#setCacheSizeBytes(long)} to disable garbage collection. */ @PublicApi public static final long CACHE_SIZE_UNLIMITED = -1; From 9244537c01f47f908ead5e91fa1233680d1005a9 Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Thu, 18 Oct 2018 12:15:10 -0700 Subject: [PATCH 11/15] Formatting --- .../firebase/firestore/FirebaseFirestoreSettings.java | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java index afadfca0560..486e59f0511 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java @@ -25,8 +25,8 @@ @PublicApi public final class FirebaseFirestoreSettings { /** - * Constant to use with {@link - * FirebaseFirestoreSettings.Builder#setCacheSizeBytes(long)} to disable garbage collection. + * Constant to use with {@link FirebaseFirestoreSettings.Builder#setCacheSizeBytes(long)} to + * disable garbage collection. */ @PublicApi public static final long CACHE_SIZE_UNLIMITED = -1; @@ -140,8 +140,8 @@ public Builder setTimestampsInSnapshotsEnabled(boolean value) { * guarantee that the cache will stay below that size, only that if the cache exceeds the given * size, cleanup will be attempted. * - *

The default value is 100 MB. The threshold must be set to at least 1 MB, and can be set - * to {@link FirebaseFirestoreSettings#CACHE_SIZE_UNLIMITED} to disable garbage collection. + *

The default value is 100 MB. The threshold must be set to at least 1 MB, and can be set to + * {@link FirebaseFirestoreSettings#CACHE_SIZE_UNLIMITED} to disable garbage collection. * * @return A settings object on which the cache size is configured as specified by the given * {@code value}. From b87a3cd9e41a5423d62a0686293459b45bb6e8af Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Tue, 23 Oct 2018 10:20:21 -0400 Subject: [PATCH 12/15] Use orphaned docs as part of GC calculation (#80) * Use orphaned documents in sequence number calculation --- .../google/firebase/firestore/local/LruDelegate.java | 2 +- .../firebase/firestore/local/LruGarbageCollector.java | 6 ++---- .../firestore/local/MemoryLruReferenceDelegate.java | 10 ++++++++-- .../firestore/local/SQLiteLruReferenceDelegate.java | 10 ++++++++-- 4 files changed, 19 insertions(+), 9 deletions(-) diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruDelegate.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruDelegate.java index 62db1e6fc69..2dd128c285e 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruDelegate.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruDelegate.java @@ -26,7 +26,7 @@ public interface LruDelegate { /** Enumerates all the targets in the QueryCache. */ void forEachTarget(Consumer consumer); - long getTargetCount(); + long getSequenceNumberCount(); /** Enumerates sequence numbers for documents not associated with a target. */ void forEachOrphanedDocumentSequenceNumber(Consumer consumer); diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java index 722fc3df75a..b327bce0f11 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java @@ -109,7 +109,7 @@ public int getDocumentsRemoved() { /** Given a percentile of target to collect, returns the number of targets to collect. */ int calculateQueryCount(int percentile) { - long targetCount = delegate.getTargetCount(); + long targetCount = delegate.getSequenceNumberCount(); return (int) ((percentile / 100.0f) * targetCount); } @@ -216,15 +216,13 @@ private Results runGarbageCollection(SparseArray liveTargetIds) { int numDocumentsRemoved = removeOrphanedDocuments(upperBound); long removedDocumentsTs = System.currentTimeMillis(); - // TODO(gsoltis): post-compaction? - if (Logger.isDebugEnabled()) { String desc = "LRU Garbage Collection:\n"; desc += "\tCounted targets in " + (countedTargetsTs - startTs) + "ms\n"; desc += String.format( Locale.ROOT, - "\tDetermined least recently used %d sequence numbers in %dms", + "\tDetermined least recently used %d sequence numbers in %dms\n", sequenceNumbers, (foundUpperBoundTs - countedTargetsTs)); desc += diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryLruReferenceDelegate.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryLruReferenceDelegate.java index 56fc1df0d9d..6ff4cb74dcc 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryLruReferenceDelegate.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/MemoryLruReferenceDelegate.java @@ -82,8 +82,14 @@ public void forEachTarget(Consumer consumer) { } @Override - public long getTargetCount() { - return persistence.getQueryCache().getTargetCount(); + public long getSequenceNumberCount() { + long targetCount = persistence.getQueryCache().getTargetCount(); + long orphanedCount[] = new long[1]; + forEachOrphanedDocumentSequenceNumber( + sequenceNumber -> { + orphanedCount[0]++; + }); + return targetCount + orphanedCount[0]; } @Override diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/SQLiteLruReferenceDelegate.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/SQLiteLruReferenceDelegate.java index d846c08636a..d2823ac3990 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/SQLiteLruReferenceDelegate.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/SQLiteLruReferenceDelegate.java @@ -70,8 +70,14 @@ public LruGarbageCollector getGarbageCollector() { } @Override - public long getTargetCount() { - return persistence.getQueryCache().getTargetCount(); + public long getSequenceNumberCount() { + long targetCount = persistence.getQueryCache().getTargetCount(); + long orphanedDocumentCount = + persistence + .query( + "SELECT COUNT(*) FROM (SELECT sequence_number FROM target_documents GROUP BY path HAVING COUNT(*) = 1 AND target_id = 0)") + .firstValue(row -> row.getLong(0)); + return targetCount + orphanedDocumentCount; } @Override From ca8e8a9782a401be774d5999bd27eaf9482c4f85 Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Thu, 8 Nov 2018 18:35:42 +0100 Subject: [PATCH 13/15] Encapsulate scheduling in an inner class (#111) * Encapsulate scheduling in an inner class --- .../gradle/wrapper/gradle-wrapper.jar | Bin 0 -> 54329 bytes .../gradle/wrapper/gradle-wrapper.properties | 5 + firebase-firestore/gradlew | 172 ++++++++++++++++++ firebase-firestore/gradlew.bat | 84 +++++++++ .../firestore/core/FirestoreClient.java | 36 +--- .../firestore/local/LruGarbageCollector.java | 54 ++++++ 6 files changed, 325 insertions(+), 26 deletions(-) create mode 100755 firebase-firestore/gradle/wrapper/gradle-wrapper.jar create mode 100755 firebase-firestore/gradle/wrapper/gradle-wrapper.properties create mode 100755 firebase-firestore/gradlew create mode 100755 firebase-firestore/gradlew.bat diff --git a/firebase-firestore/gradle/wrapper/gradle-wrapper.jar b/firebase-firestore/gradle/wrapper/gradle-wrapper.jar new file mode 100755 index 0000000000000000000000000000000000000000..f6b961fd5a86aa5fbfe90f707c3138408be7c718 GIT binary patch literal 54329 zcmagFV|ZrKvM!pAZQHhO+qP}9lTNj?q^^Y^VFp)SH8qbSJ)2BQ2giqr}t 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b/firebase-firestore/gradle/wrapper/gradle-wrapper.properties new file mode 100755 index 00000000000..9a4163a4f5e --- /dev/null +++ b/firebase-firestore/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,5 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/firebase-firestore/gradlew b/firebase-firestore/gradlew new file mode 100755 index 00000000000..cccdd3d517f --- /dev/null +++ b/firebase-firestore/gradlew @@ -0,0 +1,172 @@ +#!/usr/bin/env sh + +############################################################################## +## +## Gradle start up script for UN*X +## +############################################################################## + +# Attempt to set APP_HOME +# Resolve links: $0 may be a link +PRG="$0" +# Need this for relative symlinks. +while [ -h "$PRG" ] ; do + ls=`ls -ld "$PRG"` + link=`expr "$ls" : '.*-> \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG=`dirname "$PRG"`"/$link" + fi +done +SAVED="`pwd`" +cd "`dirname \"$PRG\"`/" >/dev/null +APP_HOME="`pwd -P`" +cd "$SAVED" >/dev/null + +APP_NAME="Gradle" +APP_BASE_NAME=`basename "$0"` + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS="" + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD="maximum" + +warn () { + echo "$*" +} + +die () { + echo + echo "$*" + echo + exit 1 +} + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "`uname`" in + CYGWIN* ) + cygwin=true + ;; + Darwin* ) + darwin=true + ;; + MINGW* ) + msys=true + ;; + NONSTOP* ) + nonstop=true + ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + else + JAVACMD="$JAVA_HOME/bin/java" + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD="java" + which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." +fi + +# Increase the maximum file descriptors if we can. +if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then + MAX_FD_LIMIT=`ulimit -H -n` + if [ $? -eq 0 ] ; then + if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then + MAX_FD="$MAX_FD_LIMIT" + fi + ulimit -n $MAX_FD + if [ $? -ne 0 ] ; then + warn "Could not set maximum file descriptor limit: $MAX_FD" + fi + else + warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" + fi +fi + +# For Darwin, add options to specify how the application appears in the dock +if $darwin; then + GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" +fi + +# For Cygwin, switch paths to Windows format before running java +if $cygwin ; then + APP_HOME=`cygpath --path --mixed "$APP_HOME"` + CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` + JAVACMD=`cygpath --unix "$JAVACMD"` + + # We build the pattern for arguments to be converted via cygpath + ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` + SEP="" + for dir in $ROOTDIRSRAW ; do + ROOTDIRS="$ROOTDIRS$SEP$dir" + SEP="|" + done + OURCYGPATTERN="(^($ROOTDIRS))" + # Add a user-defined pattern to the cygpath arguments + if [ "$GRADLE_CYGPATTERN" != "" ] ; then + OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" + fi + # Now convert the arguments - kludge to limit ourselves to /bin/sh + i=0 + for arg in "$@" ; do + CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` + CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option + + if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition + eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` + else + eval `echo args$i`="\"$arg\"" + fi + i=$((i+1)) + done + case $i in + (0) set -- ;; + (1) set -- "$args0" ;; + (2) set -- "$args0" "$args1" ;; + (3) set -- "$args0" "$args1" "$args2" ;; + (4) set -- "$args0" "$args1" "$args2" "$args3" ;; + (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; + (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; + (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; + (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; + (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; + esac +fi + +# Escape application args +save () { + for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done + echo " " +} +APP_ARGS=$(save "$@") + +# Collect all arguments for the java command, following the shell quoting and substitution rules +eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" + +# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong +if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then + cd "$(dirname "$0")" +fi + +exec "$JAVACMD" "$@" diff --git a/firebase-firestore/gradlew.bat b/firebase-firestore/gradlew.bat new file mode 100755 index 00000000000..e95643d6a2c --- /dev/null +++ b/firebase-firestore/gradlew.bat @@ -0,0 +1,84 @@ +@if "%DEBUG%" == "" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%" == "" set DIRNAME=. +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS= + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if "%ERRORLEVEL%" == "0" goto init + +echo. +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto init + +echo. +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:init +@rem Get command-line arguments, handling Windows variants + +if not "%OS%" == "Windows_NT" goto win9xME_args + +:win9xME_args +@rem Slurp the command line arguments. +set CMD_LINE_ARGS= +set _SKIP=2 + +:win9xME_args_slurp +if "x%~1" == "x" goto execute + +set CMD_LINE_ARGS=%* + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% + +:end +@rem End local scope for the variables with windows NT shell +if "%ERRORLEVEL%"=="0" goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 +exit /b 1 + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/core/FirestoreClient.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/core/FirestoreClient.java index 79439f6cf3b..c810b1e1465 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/core/FirestoreClient.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/core/FirestoreClient.java @@ -54,7 +54,6 @@ import java.util.Collections; import java.util.List; import java.util.concurrent.ExecutionException; -import java.util.concurrent.TimeUnit; import java.util.concurrent.atomic.AtomicBoolean; /** @@ -65,11 +64,6 @@ public final class FirestoreClient implements RemoteStore.RemoteStoreCallback { private static final String LOG_TAG = "FirestoreClient"; - /** How long we wait to try running LRU GC after SDK initialization. */ - private static final long INITIAL_GC_DELAY_MS = TimeUnit.MINUTES.toMillis(1); - /** Minimum amount of time between GC checks, after the first one. */ - private static final long REGULAR_GC_DELAY_MS = TimeUnit.MINUTES.toMillis(5); - private final DatabaseInfo databaseInfo; private final CredentialsProvider credentialsProvider; private final AsyncQueue asyncQueue; @@ -81,9 +75,7 @@ public final class FirestoreClient implements RemoteStore.RemoteStoreCallback { private EventManager eventManager; // LRU-related - private boolean gcHasRun = false; - @Nullable private LruDelegate lruDelegate; - @Nullable private AsyncQueue.DelayedTask gcTask; + @Nullable private LruGarbageCollector.Scheduler lruScheduler; public FirestoreClient( final Context context, @@ -145,8 +137,8 @@ public Task shutdown() { () -> { remoteStore.shutdown(); persistence.shutdown(); - if (gcTask != null) { - gcTask.cancel(); + if (lruScheduler != null) { + lruScheduler.stop(); } }); } @@ -221,6 +213,7 @@ private void initialize(Context context, User user, boolean usePersistence, long // completes. Logger.debug(LOG_TAG, "Initializing. user=%s", user.getUid()); + LruGarbageCollector gc = null; if (usePersistence) { LocalSerializer serializer = new LocalSerializer(new RemoteSerializer(databaseInfo.getDatabaseId())); @@ -233,15 +226,19 @@ private void initialize(Context context, User user, boolean usePersistence, long databaseInfo.getDatabaseId(), serializer, params); - lruDelegate = sqlitePersistence.getReferenceDelegate(); + LruDelegate lruDelegate = sqlitePersistence.getReferenceDelegate(); + gc = lruDelegate.getGarbageCollector(); persistence = sqlitePersistence; - scheduleLruGarbageCollection(); } else { persistence = MemoryPersistence.createEagerGcMemoryPersistence(); } persistence.start(); localStore = new LocalStore(persistence, user); + if (gc != null) { + lruScheduler = gc.newScheduler(asyncQueue, localStore); + lruScheduler.start(); + } Datastore datastore = new Datastore(databaseInfo, asyncQueue, credentialsProvider); remoteStore = new RemoteStore(this, localStore, datastore, asyncQueue); @@ -255,19 +252,6 @@ private void initialize(Context context, User user, boolean usePersistence, long remoteStore.start(); } - private void scheduleLruGarbageCollection() { - long delay = gcHasRun ? REGULAR_GC_DELAY_MS : INITIAL_GC_DELAY_MS; - gcTask = - asyncQueue.enqueueAfterDelay( - AsyncQueue.TimerId.GARBAGE_COLLECTION, - delay, - () -> { - localStore.collectGarbage(lruDelegate.getGarbageCollector()); - gcHasRun = true; - scheduleLruGarbageCollection(); - }); - } - @Override public void handleRemoteEvent(RemoteEvent remoteEvent) { syncEngine.handleRemoteEvent(remoteEvent); diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java index b327bce0f11..d423ca60218 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/local/LruGarbageCollector.java @@ -14,16 +14,24 @@ package com.google.firebase.firestore.local; +import android.support.annotation.Nullable; import android.util.SparseArray; import com.google.firebase.firestore.FirebaseFirestoreSettings; import com.google.firebase.firestore.core.ListenSequence; +import com.google.firebase.firestore.util.AsyncQueue; import com.google.firebase.firestore.util.Logger; import java.util.Comparator; import java.util.Locale; import java.util.PriorityQueue; +import java.util.concurrent.TimeUnit; /** Implements the steps for LRU garbage collection. */ public class LruGarbageCollector { + /** How long we wait to try running LRU GC after SDK initialization. */ + private static final long INITIAL_GC_DELAY_MS = TimeUnit.MINUTES.toMillis(1); + /** Minimum amount of time between GC checks, after the first one. */ + private static final long REGULAR_GC_DELAY_MS = TimeUnit.MINUTES.toMillis(5); + public static class Params { private static final long COLLECTION_DISABLED = FirebaseFirestoreSettings.CACHE_SIZE_UNLIMITED; private static final long DEFAULT_CACHE_SIZE_BYTES = 100 * 1024 * 1024; // 100mb @@ -99,6 +107,47 @@ public int getDocumentsRemoved() { } } + /** + * This class is responsible for the scheduling of LRU garbage collection. It handles checking + * whether or not GC is enabled, as well as which delay to use before the next run. + */ + public class Scheduler { + private final AsyncQueue asyncQueue; + private final LocalStore localStore; + private boolean hasRun = false; + @Nullable private AsyncQueue.DelayedTask gcTask; + + public Scheduler(AsyncQueue asyncQueue, LocalStore localStore) { + this.asyncQueue = asyncQueue; + this.localStore = localStore; + } + + public void start() { + if (params.minBytesThreshold != Params.COLLECTION_DISABLED) { + scheduleGC(); + } + } + + public void stop() { + if (gcTask != null) { + gcTask.cancel(); + } + } + + private void scheduleGC() { + long delay = hasRun ? REGULAR_GC_DELAY_MS : INITIAL_GC_DELAY_MS; + gcTask = + asyncQueue.enqueueAfterDelay( + AsyncQueue.TimerId.GARBAGE_COLLECTION, + delay, + () -> { + localStore.collectGarbage(LruGarbageCollector.this); + hasRun = true; + scheduleGC(); + }); + } + } + private final LruDelegate delegate; private final Params params; @@ -107,6 +156,11 @@ public int getDocumentsRemoved() { this.params = params; } + /** A helper method to create a new scheduler. */ + public Scheduler newScheduler(AsyncQueue asyncQueue, LocalStore localStore) { + return new Scheduler(asyncQueue, localStore); + } + /** Given a percentile of target to collect, returns the number of targets to collect. */ int calculateQueryCount(int percentile) { long targetCount = delegate.getSequenceNumberCount(); From 1a53dfd29364c9b0e4af58af88f5454f3bcad395 Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Tue, 20 Nov 2018 14:56:40 -0800 Subject: [PATCH 14/15] Remove errant gradle stuff --- .../gradle/wrapper/gradle-wrapper.jar | Bin 54329 -> 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file mode 100755 index 9a4163a4f5e..00000000000 --- a/firebase-firestore/gradle/wrapper/gradle-wrapper.properties +++ /dev/null @@ -1,5 +0,0 @@ -distributionBase=GRADLE_USER_HOME -distributionPath=wrapper/dists -distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip -zipStoreBase=GRADLE_USER_HOME -zipStorePath=wrapper/dists diff --git a/firebase-firestore/gradlew b/firebase-firestore/gradlew deleted file mode 100755 index cccdd3d517f..00000000000 --- a/firebase-firestore/gradlew +++ /dev/null @@ -1,172 +0,0 @@ -#!/usr/bin/env sh - -############################################################################## -## -## Gradle start up script for UN*X -## -############################################################################## - -# Attempt to set APP_HOME -# Resolve links: $0 may be a link -PRG="$0" -# Need this for relative symlinks. -while [ -h "$PRG" ] ; do - ls=`ls -ld "$PRG"` - link=`expr "$ls" : '.*-> \(.*\)$'` - if expr "$link" : '/.*' > /dev/null; then - PRG="$link" - else - PRG=`dirname "$PRG"`"/$link" - fi -done -SAVED="`pwd`" -cd "`dirname \"$PRG\"`/" >/dev/null -APP_HOME="`pwd -P`" -cd "$SAVED" >/dev/null - -APP_NAME="Gradle" -APP_BASE_NAME=`basename "$0"` - -# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. -DEFAULT_JVM_OPTS="" - -# Use the maximum available, or set MAX_FD != -1 to use that value. -MAX_FD="maximum" - -warn () { - echo "$*" -} - -die () { - echo - echo "$*" - echo - exit 1 -} - -# OS specific support (must be 'true' or 'false'). -cygwin=false -msys=false -darwin=false -nonstop=false -case "`uname`" in - CYGWIN* ) - cygwin=true - ;; - Darwin* ) - darwin=true - ;; - MINGW* ) - msys=true - ;; - NONSTOP* ) - nonstop=true - ;; -esac - -CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar - -# Determine the Java command to use to start the JVM. -if [ -n "$JAVA_HOME" ] ; then - if [ -x "$JAVA_HOME/jre/sh/java" ] ; then - # IBM's JDK on AIX uses strange locations for the executables - JAVACMD="$JAVA_HOME/jre/sh/java" - else - JAVACMD="$JAVA_HOME/bin/java" - fi - if [ ! -x "$JAVACMD" ] ; then - die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME - -Please set the JAVA_HOME variable in your environment to match the -location of your Java installation." - fi -else - JAVACMD="java" - which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. - -Please set the JAVA_HOME variable in your environment to match the -location of your Java installation." -fi - -# Increase the maximum file descriptors if we can. -if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then - MAX_FD_LIMIT=`ulimit -H -n` - if [ $? -eq 0 ] ; then - if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then - MAX_FD="$MAX_FD_LIMIT" - fi - ulimit -n $MAX_FD - if [ $? -ne 0 ] ; then - warn "Could not set maximum file descriptor limit: $MAX_FD" - fi - else - warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" - fi -fi - -# For Darwin, add options to specify how the application appears in the dock -if $darwin; then - GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" -fi - -# For Cygwin, switch paths to Windows format before running java -if $cygwin ; then - APP_HOME=`cygpath --path --mixed "$APP_HOME"` - CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` - JAVACMD=`cygpath --unix "$JAVACMD"` - - # We build the pattern for arguments to be converted via cygpath - ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` - SEP="" - for dir in $ROOTDIRSRAW ; do - ROOTDIRS="$ROOTDIRS$SEP$dir" - SEP="|" - done - OURCYGPATTERN="(^($ROOTDIRS))" - # Add a user-defined pattern to the cygpath arguments - if [ "$GRADLE_CYGPATTERN" != "" ] ; then - OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" - fi - # Now convert the arguments - kludge to limit ourselves to /bin/sh - i=0 - for arg in "$@" ; do - CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` - CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option - - if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition - eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` - else - eval `echo args$i`="\"$arg\"" - fi - i=$((i+1)) - done - case $i in - (0) set -- ;; - (1) set -- "$args0" ;; - (2) set -- "$args0" "$args1" ;; - (3) set -- "$args0" "$args1" "$args2" ;; - (4) set -- "$args0" "$args1" "$args2" "$args3" ;; - (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; - (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; - (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; - (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; - (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; - esac -fi - -# Escape application args -save () { - for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done - echo " " -} -APP_ARGS=$(save "$@") - -# Collect all arguments for the java command, following the shell quoting and substitution rules -eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" - -# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong -if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then - cd "$(dirname "$0")" -fi - -exec "$JAVACMD" "$@" diff --git a/firebase-firestore/gradlew.bat b/firebase-firestore/gradlew.bat deleted file mode 100755 index e95643d6a2c..00000000000 --- a/firebase-firestore/gradlew.bat +++ /dev/null @@ -1,84 +0,0 @@ -@if "%DEBUG%" == "" @echo off -@rem ########################################################################## -@rem -@rem Gradle startup script for Windows -@rem -@rem ########################################################################## - -@rem Set local scope for the variables with windows NT shell -if "%OS%"=="Windows_NT" setlocal - -set DIRNAME=%~dp0 -if "%DIRNAME%" == "" set DIRNAME=. -set APP_BASE_NAME=%~n0 -set APP_HOME=%DIRNAME% - -@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. -set DEFAULT_JVM_OPTS= - -@rem Find java.exe -if defined JAVA_HOME goto findJavaFromJavaHome - -set JAVA_EXE=java.exe -%JAVA_EXE% -version >NUL 2>&1 -if "%ERRORLEVEL%" == "0" goto init - -echo. -echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. -echo. -echo Please set the JAVA_HOME variable in your environment to match the -echo location of your Java installation. - -goto fail - -:findJavaFromJavaHome -set JAVA_HOME=%JAVA_HOME:"=% -set JAVA_EXE=%JAVA_HOME%/bin/java.exe - -if exist "%JAVA_EXE%" goto init - -echo. -echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% -echo. -echo Please set the JAVA_HOME variable in your environment to match the -echo location of your Java installation. - -goto fail - -:init -@rem Get command-line arguments, handling Windows variants - -if not "%OS%" == "Windows_NT" goto win9xME_args - -:win9xME_args -@rem Slurp the command line arguments. -set CMD_LINE_ARGS= -set _SKIP=2 - -:win9xME_args_slurp -if "x%~1" == "x" goto execute - -set CMD_LINE_ARGS=%* - -:execute -@rem Setup the command line - -set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar - -@rem Execute Gradle -"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% - -:end -@rem End local scope for the variables with windows NT shell -if "%ERRORLEVEL%"=="0" goto mainEnd - -:fail -rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of -rem the _cmd.exe /c_ return code! -if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 -exit /b 1 - -:mainEnd -if "%OS%"=="Windows_NT" endlocal - -:omega From 793b0b4989924c8cacfc5ff29140eb93d4f24669 Mon Sep 17 00:00:00 2001 From: Greg Soltis Date: Wed, 19 Dec 2018 14:30:44 -0800 Subject: [PATCH 15/15] Switch default for LRU collection to disabled (#174) * Switch default for LRU collection to disabled --- .../firebase/firestore/FirebaseFirestoreSettings.java | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java index 486e59f0511..750e7ff0159 100644 --- a/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java +++ b/firebase-firestore/src/main/java/com/google/firebase/firestore/FirebaseFirestoreSettings.java @@ -31,7 +31,11 @@ public final class FirebaseFirestoreSettings { @PublicApi public static final long CACHE_SIZE_UNLIMITED = -1; private static final long MINIMUM_CACHE_BYTES = 1 * 1024 * 1024; // 1 MB - private static final long DEFAULT_CACHE_SIZE_BYTES = 100 * 1024 * 1024; // 100 MB + // TODO(b/121269744): Set this to be the default value after SDK is past version 1.0 + // private static final long DEFAULT_CACHE_SIZE_BYTES = 100 * 1024 * 1024; // 100 MB + // For now, we are rolling this out with collection disabled. Once the SDK has hit version 1.0, + // we will switch the default to the above value, 100 MB. + private static final long DEFAULT_CACHE_SIZE_BYTES = CACHE_SIZE_UNLIMITED; private static final String DEFAULT_HOST = "firestore.googleapis.com"; private static final boolean DEFAULT_TIMESTAMPS_IN_SNAPSHOTS_ENABLED = false; @@ -140,8 +144,9 @@ public Builder setTimestampsInSnapshotsEnabled(boolean value) { * guarantee that the cache will stay below that size, only that if the cache exceeds the given * size, cleanup will be attempted. * - *

The default value is 100 MB. The threshold must be set to at least 1 MB, and can be set to - * {@link FirebaseFirestoreSettings#CACHE_SIZE_UNLIMITED} to disable garbage collection. + *

By default, collection is disabled (the value is set to {@link + * FirebaseFirestoreSettings#CACHE_SIZE_UNLIMITED}). In a future release, collection will be + * enabled by default, with a default cache size of 100 MB. The minimum value is 1 MB. * * @return A settings object on which the cache size is configured as specified by the given * {@code value}.