This document defines Java Virtual machine related attributes.
| Attribute | Type | Description | Examples | Stability |
|---|---|---|---|---|
jvm.buffer.pool.name |
string | Name of the buffer pool. [1] | mapped; direct |
 |
jvm.gc.action |
string | Name of the garbage collector action. [2] | end of minor GC; end of major GC |
 |
jvm.gc.cause |
string | Name of the garbage collector cause. [3] | System.gc(); Allocation Failure |
|
jvm.gc.name |
string | Name of the garbage collector. [4] | G1 Young Generation; G1 Old Generation |
|
jvm.memory.pool.name |
string | Name of the memory pool. [5] | G1 Old Gen; G1 Eden space; G1 Survivor Space |
|
jvm.memory.type |
string | The type of memory. | heap; non_heap |
|
jvm.thread.daemon |
boolean | Whether the thread is daemon or not. | |
|
jvm.thread.state |
string | State of the thread. | runnable; blocked |
|
[1] jvm.buffer.pool.name: Pool names are generally obtained via BufferPoolMXBean#getName().
[2] jvm.gc.action: Garbage collector action is generally obtained via GarbageCollectionNotificationInfo#getGcAction().
[3] jvm.gc.cause: Garbage collector cause is generally obtained via GarbageCollectionNotificationInfo#getGcCause().
[4] jvm.gc.name: Garbage collector name is generally obtained via GarbageCollectionNotificationInfo#getGcName().
[5] jvm.memory.pool.name: Pool names are generally obtained via MemoryPoolMXBean#getName().
jvm.memory.type has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
heap |
Heap memory. | |
non_heap |
Non-heap memory | |
jvm.thread.state has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
| Value | Description | Stability |
|---|---|---|
blocked |
A thread that is blocked waiting for a monitor lock is in this state. | |
new |
A thread that has not yet started is in this state. | |
runnable |
A thread executing in the Java virtual machine is in this state. | |
terminated |
A thread that has exited is in this state. | |
timed_waiting |
A thread that is waiting for another thread to perform an action for up to a specified waiting time is in this state. | |
waiting |
A thread that is waiting indefinitely for another thread to perform a particular action is in this state. | |