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Remove stacktrace from recoverable discovery log warnings #943

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Merged
merged 2 commits into from
Jun 28, 2021
Merged

Remove stacktrace from recoverable discovery log warnings #943

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7fa806c
Remove stacktrace from recoverable discovery log warnings
injectives Jun 22, 2021
239a58d
Update class comment on RediscoveryImpl
injectives Jun 26, 2021
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11 changes: 7 additions & 4 deletions driver/src/main/java/org/neo4j/driver/internal/cluster/RediscoveryImpl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -53,13 +53,15 @@
import static org.neo4j.driver.internal.util.Futures.failedFuture;

/**
* This class is used by all router tables to perform discovery.
* In other words, the methods in this class could be called by multiple threads concurrently.
* This class is used by all router tables to perform discovery. In other words, the methods in this class could be called by multiple threads concurrently.
*/
public class RediscoveryImpl implements Rediscovery
{
private static final String NO_ROUTERS_AVAILABLE = "Could not perform discovery for database '%s'. No routing server available.";
private static final String RECOVERABLE_ROUTING_ERROR = "Failed to update routing table with server '%s'.";
private static final String RECOVERABLE_DISCOVERY_ERROR_WITH_SERVER = "Received a recoverable discovery error with server '%s', " +
"will continue discovery with other routing servers if available. " +
"Complete routing failures will be reported separately from this warning.";

private final BoltServerAddress initialRouter;
private final RoutingSettings settings;
Expand Down Expand Up @@ -291,8 +293,9 @@ private ClusterComposition handleRoutingProcedureError( Throwable error, Routing
// Retriable error happened during discovery.
DiscoveryException discoveryError = new DiscoveryException( format( RECOVERABLE_ROUTING_ERROR, routerAddress ), error );
Futures.combineErrors( baseError, discoveryError ); // we record each failure here
logger.warn( format( "Received a recoverable discovery error with server '%s', will continue discovery with other routing servers if available.",
routerAddress ), discoveryError );
String warningMessage = format( RECOVERABLE_DISCOVERY_ERROR_WITH_SERVER, routerAddress );
logger.warn( warningMessage );
logger.debug( warningMessage, discoveryError );
routingTable.forget( routerAddress );
return null;
}
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12 changes: 8 additions & 4 deletions driver/src/test/java/org/neo4j/driver/internal/cluster/RediscoveryTest.java
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Expand Up @@ -57,7 +57,6 @@
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.startsWith;
Expand Down Expand Up @@ -187,9 +186,14 @@ void shouldFailImmediatelyWhenClusterCompositionProviderReturnsFailure()
ClusterComposition composition = await( rediscovery.lookupClusterComposition( table, pool, empty() ) ).getClusterComposition();
assertEquals( validComposition, composition );

ArgumentCaptor<DiscoveryException> argument = ArgumentCaptor.forClass( DiscoveryException.class );
verify( logger ).warn( anyString(), argument.capture() );
assertThat( argument.getValue().getCause(), equalTo( protocolError ) );
ArgumentCaptor<String> warningMessageCaptor = ArgumentCaptor.forClass( String.class );
ArgumentCaptor<String> debugMessageCaptor = ArgumentCaptor.forClass( String.class );
ArgumentCaptor<DiscoveryException> debugThrowableCaptor = ArgumentCaptor.forClass( DiscoveryException.class );
verify( logger ).warn( warningMessageCaptor.capture() );
verify( logger ).debug( debugMessageCaptor.capture(), debugThrowableCaptor.capture() );
assertNotNull( warningMessageCaptor.getValue() );
assertEquals( warningMessageCaptor.getValue(), debugMessageCaptor.getValue() );
assertThat( debugThrowableCaptor.getValue().getCause(), equalTo( protocolError ) );
}

@Test
Expand Down