Hazelcast IMDG Standard Support has expired. Extended support for version 4.1 ends in April 2024. Extended support for version 4.2 ends in September 2024.

We recommend that you try Hazelcast Platform.

In Hazelcast Platform, we’ve combined the in-memory storage of IMDG with the stream processing power of Jet. Find out more in our Platform documentation.

The following topics are a good place to start:

JMX API per Member

4.2 4.1 4.0 3.12 3.11 3.10 3.9 3.8 3.7 3.6 3.5

Hazelcast members expose various management beans which include statistics about distributed data structures and the states of Hazelcast member internals.

The metrics are local to the members, i.e., they do not reflect cluster wide values.

You can find the JMX API definition below with descriptions and the API methods in parenthesis.

Atomic Long (IAtomicLong)

  • Name ( name )

  • Current Value ( currentValue )

  • Set Value ( set(v) )

  • Add value and Get ( addAndGet(v) )

  • Compare and Set ( compareAndSet(e,v) )

  • Decrement and Get ( decrementAndGet() )

  • Get and Add ( getAndAdd(v) )

  • Get and Increment ( getAndIncrement() )

  • Get and Set ( getAndSet(v) )

  • Increment and Get ( incrementAndGet() )

  • Partition key ( partitionKey )

Atomic Reference ( IAtomicReference )

  • Name ( name )

  • Partition key ( partitionKey)

Countdown Latch ( ICountDownLatch )

  • Name ( name )

  • Current count ( count)

  • Countdown ( countDown() )

  • Partition key ( partitionKey)

Executor Service ( IExecutorService )

  • Local pending operation count ( localPendingTaskCount )

  • Local started operation count ( localStartedTaskCount )

  • Local completed operation count ( localCompletedTaskCount )

  • Local cancelled operation count ( localCancelledTaskCount )

  • Local total start latency ( localTotalStartLatency )

  • Local total execution latency ( localTotalExecutionLatency )

List ( IList )

  • Name ( name )

  • Clear list ( clear )

Lock ( ILock )

  • Name ( name )

  • Lock Object ( lockObject )

  • Partition key ( partitionKey )

Map ( IMap )

  • Name ( name )

  • Size ( size )

  • Config ( config )

  • Owned entry count ( localOwnedEntryCount )

  • Owned entry memory cost ( localOwnedEntryMemoryCost )

  • Backup entry count ( localBackupEntryCount )

  • Backup entry cost ( localBackupEntryMemoryCost )

  • Backup count ( localBackupCount )

  • Creation time ( localCreationTime )

  • Last access time ( localLastAccessTime )

  • Last update time ( localLastUpdateTime )

  • Hits ( localHits )

  • Locked entry count ( localLockedEntryCount )

  • Dirty entry count ( localDirtyEntryCount )

  • Put operation count ( localPutOperationCount )

  • Get operation count ( localGetOperationCount )

  • Remove operation count ( localRemoveOperationCount )

  • Total put latency ( localTotalPutLatency )

  • Total get latency ( localTotalGetLatency )

  • Total remove latency ( localTotalRemoveLatency )

  • Max put latency ( localMaxPutLatency )

  • Max get latency ( localMaxGetLatency )

  • Max remove latency ( localMaxRemoveLatency )

  • Event count ( localEventOperationCount )

  • Other (keySet,entrySet etc..) operation count ( localOtherOperationCount )

  • Total operation count ( localTotal )

  • Heap Cost ( localHeapCost )

  • Clear ( clear() )

  • Values ( values(p))

  • Entry Set ( entrySet(p) )

MultiMap ( MultiMap )

  • Name ( name )

  • Size ( size )

  • Owned entry count ( localOwnedEntryCount )

  • Owned entry memory cost ( localOwnedEntryMemoryCost )

  • Backup entry count ( localBackupEntryCount )

  • Backup entry cost ( localBackupEntryMemoryCost )

  • Backup count ( localBackupCount )

  • Creation time ( localCreationTime )

  • Last access time ( localLastAccessTime )

  • Last update time ( localLastUpdateTime )

  • Hits ( localHits )

  • Locked entry count ( localLockedEntryCount )

  • Put operation count ( localPutOperationCount )

  • Get operation count ( localGetOperationCount )

  • Remove operation count ( localRemoveOperationCount )

  • Total put latency ( localTotalPutLatency )

  • Total get latency ( localTotalGetLatency )

  • Total remove latency ( localTotalRemoveLatency )

  • Max put latency ( localMaxPutLatency )

  • Max get latency ( localMaxGetLatency )

  • Max remove latency ( localMaxRemoveLatency )

  • Event count ( localEventOperationCount )

  • Other (keySet,entrySet etc..) operation count ( localOtherOperationCount )

  • Total operation count ( localTotal )

  • Clear ( clear() )

Replicated Map ( ReplicatedMap )

  • Name ( name )

  • Size ( size )

  • Config ( config )

  • Owned entry count ( localOwnedEntryCount )

  • Creation time ( localCreationTime )

  • Last access time ( localLastAccessTime )

  • Last update time ( localLastUpdateTime )

  • Hits ( localHits )

  • Put operation count ( localPutOperationCount )

  • Get operation count ( localGetOperationCount )

  • Remove operation count ( localRemoveOperationCount )

  • Total put latency ( localTotalPutLatency )

  • Total get latency ( localTotalGetLatency )

  • Total remove latency ( localTotalRemoveLatency )

  • Max put latency ( localMaxPutLatency )

  • Max get latency ( localMaxGetLatency )

  • Max remove latency ( localMaxRemoveLatency )

  • Event count ( localEventOperationCount )

  • Other (keySet,entrySet etc..) operation count ( localOtherOperationCount )

  • Total operation count ( localTotal )

  • Clear ( clear() )

  • Values ( values())

  • Entry Set ( entrySet() )

Queue ( IQueue )

  • Name ( name )

  • Config ( QueueConfig )

  • Partition key ( partitionKey )

  • Owned item count ( localOwnedItemCount )

  • Backup item count ( localBackupItemCount )

  • Minimum age ( localMinAge )

  • Maximum age ( localMaxAge )

  • Average age ( localAverageAge )

  • Offer operation count ( localOfferOperationCount )

  • Rejected offer operation count ( localRejectedOfferOperationCount )

  • Poll operation count ( localPollOperationCount )

  • Empty poll operation count ( localEmptyPollOperationCount )

  • Other operation count ( localOtherOperationsCount )

  • Event operation count ( localEventOperationCount )

  • Clear ( clear() )

Semaphore ( ISemaphore )

  • Name ( name )

  • Available permits ( available )

  • Partition key ( partitionKey )

  • Drain ( drain())

  • Shrink available permits by given number ( reduce(v) )

  • Release given number of permits ( release(v) )

Set ( ISet )

  • Name ( name )

  • Partition key ( partitionKey )

  • Clear ( clear() )

Topic ( ITopic )

  • Name ( name )

  • Config ( config )

  • Creation time ( localCreationTime )

  • Publish operation count ( localPublishOperationCount )

  • Receive operation count ( localReceiveOperationCount )

Hazelcast Instance ( HazelcastInstance )

  • Name ( name )

  • Version ( version )

  • Build ( build )

  • Configuration ( config )

  • Configuration source ( configSource )

  • Cluster name ( clusterName )

  • Network Port ( port )

  • Cluster-wide Time ( clusterTime )

  • Size of the cluster ( memberCount )

  • List of members ( Members )

  • Running state ( running )

  • Shutdown the member ( shutdown() )

  • Node ( HazelcastInstance.Node )

  • Address ( address )

  • Master address ( masterAddress )

  • Partition Service ( HazelcastInstance.PartitionServiceMBean )

    • Partition count ( partitionCount )

    • Active partition count ( activePartitionCount )

    • Cluster Safe State ( isClusterSafe )

    • LocalMember Safe State ( isLocalMemberSafe )

  • Logging Service (HazelcastInstance.LoggingService)

    • Level (level)

    • Set Level ( setLevel(l) )

    • Reset Level ( resetLevel()`)

  • Connection Manager ( HazelcastInstance.ConnectionManager )

    • Client connection count ( clientConnectionCount )

    • Active connection count ( activeConnectionCount )

    • Connection count ( connectionCount )

  • System Executor ( HazelcastInstance.ManagedExecutorService )

    • Name ( name )

    • Work queue size ( queueSize )

    • Thread count of the pool ( poolSize )

    • Maximum thread count of the pool ( maximumPoolSize )

    • Remaining capacity of the work queue ( remainingQueueCapacity )

    • Is shutdown ( isShutdown )

    • Is terminated ( isTerminated )

    • Completed task count ( completedTaskCount )

  • Async Executor (HazelcastInstance.ManagedExecutorService)

    • Name ( name )

    • Work queue size ( queueSize )

    • Thread count of the pool ( poolSize )

    • Maximum thread count of the pool ( maximumPoolSize )

    • Remaining capacity of the work queue ( remainingQueueCapacity )

    • Is shutdown ( isShutdown )

    • Is terminated ( isTerminated )

    • Completed task count ( completedTaskCount )

  • Scheduled Executor ( HazelcastInstance.ManagedExecutorService )

    • Name ( name )

    • Work queue size ( queueSize )

    • Thread count of the pool ( poolSize )

    • Maximum thread count of the pool ( maximumPoolSize )

    • Remaining capacity of the work queue ( remainingQueueCapacity )

    • Is shutdown ( isShutdown )

    • Is terminated ( isTerminated )

    • Completed task count ( completedTaskCount )

  • Client Executor ( HazelcastInstance.ManagedExecutorService )

    • Name ( name )

    • Work queue size ( queueSize )

    • Thread count of the pool ( poolSize )

    • Maximum thread count of the pool ( maximumPoolSize )

    • Remaining capacity of the work queue ( remainingQueueCapacity )

    • Is shutdown ( isShutdown )

    • Is terminated ( isTerminated )

    • Completed task count ( completedTaskCount )

  • Query Executor ( HazelcastInstance.ManagedExecutorService )

    • Name ( name )

    • Work queue size ( queueSize )

    • Thread count of the pool ( poolSize )

    • Maximum thread count of the pool ( maximumPoolSize )

    • Remaining capacity of the work queue ( remainingQueueCapacity )

    • Is shutdown ( isShutdown )

    • Is terminated ( isTerminated )

    • Completed task count ( completedTaskCount )

  • I/O Executor ( HazelcastInstance.ManagedExecutorService )

    • Name ( name )

    • Work queue size ( queueSize )

    • Thread count of the pool ( poolSize )

    • Maximum thread count of the pool ( maximumPoolSize )

    • Remaining capacity of the work queue ( remainingQueueCapacity )

    • Is shutdown ( isShutdown )

    • Is terminated ( isTerminated )

    • Completed task count ( completedTaskCount )

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