| Name | Value | Description |
|---|---|---|
| catalog.server.client-cache.clients-in-use | 0 | The number of clients currently in use by the Catalog Server client cache. |
| catalog.server.client-cache.total-clients | 1 | The total number of clients in the Catalog Server client cache. |
| external-data-source.class-cache.hits | 0 | Number of cache hits in the External Data Source Class Cache |
| external-data-source.class-cache.misses | 0 | Number of cache misses in the External Data Source Class Cache |
| impala-server.backends.client-cache.clients-in-use | 0 | The number of active Impala Backend clients. These clients are for communication with other Impala Daemons. |
| impala-server.backends.client-cache.total-clients | 3 | The total number of Impala Backend clients in this Impala Daemon's client cache. These clients are for communication with other Impala Daemons. |
| impala.thrift-server.backend.connection-setup-queue-size | 0 | The number of connections to the Impala Backend Server that have been accepted and are waiting to be setup. |
| impala.thrift-server.backend.connections-in-use | 1 | The number of active Impala Backend client connections to this Impala Daemon. |
| impala.thrift-server.backend.timedout-cnxn-requests | 0 | The number of connection requests to the Impala Backend Server that have been timed out waiting to be setup. |
| impala.thrift-server.backend.total-connections | 1 | The total number of Impala Backend client connections made to this Impala Daemon over its lifetime. |
| impala.thrift-server.beeswax-frontend.connection-setup-queue-size | 0 | The number of Beeswax API connections to this Impala Daemon that have been accepted and are waiting to be setup. |
| impala.thrift-server.beeswax-frontend.connections-in-use | 0 | The number of active Beeswax API connections to this Impala Daemon. |
| impala.thrift-server.beeswax-frontend.timedout-cnxn-requests | 0 | The number of Beeswax API connection requests to this Impala Daemon that have been timed out waiting to be setup. |
| impala.thrift-server.beeswax-frontend.total-connections | 13.98K | The total number of Beeswax API connections made to this Impala Daemon over its lifetime. |
| impala.thrift-server.hiveserver2-frontend.connection-setup-queue-size | 0 | The number of HiveServer2 API connections to this Impala Daemon that have been accepted and are waiting to be setup. |
| impala.thrift-server.hiveserver2-frontend.connections-in-use | 2 | The number of active HiveServer2 API connections to this Impala Daemon. |
| impala.thrift-server.hiveserver2-frontend.timedout-cnxn-requests | 0 | The number of HiveServer2 API connection requests to this Impala Daemon that have been timed out waiting to be setup. |
| impala.thrift-server.hiveserver2-frontend.total-connections | 7.30K | The total number of HiveServer2 API connections made to this Impala Daemon over its lifetime. |
| kudu-client.version | kudu 1.10.0-cdh6.3.2 (rev 09cea83ce09c429de2c5c9776908db0000857495) | A version string identifying the Kudu client |
| mem-tracker.process.bytes-freed-by-last-gc | -1.00 B | The amount of memory freed by the last memory tracker garbage collection. |
| mem-tracker.process.bytes-over-limit | -1.00 B | The amount of memory by which the process was over its memory limit the last time the memory limit was encountered. |
| mem-tracker.process.limit | 49.41 GB | The process memory tracker limit. |
| mem-tracker.process.num-gcs | 0 | The total number of garbage collections performed by the memory tracker over the life of the process. |
| process-start-time | 2024-09-12 11:37:41.386630000 | The local start time of the process |
| request-pool-service.resolve-pool-duration-ms | Last (of 36336): 0. Min: 0, max: 48, avg: 0.0976717 | Time (ms) spent resolving request request pools. |
| rpc-method.backend.ImpalaInternalService.ExecQueryFInstances.call_duration | Count: 3370, min / max: 0 / 32ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 1ms, 90th %-ile: 1ms, 95th %-ile: 1ms, 99.9th %-ile: 18ms | |
| rpc-method.beeswax.BeeswaxService.close.call_duration | Count: 152, min / max: 2ms / 9ms, 25th %-ile: 3ms, 50th %-ile: 4ms, 75th %-ile: 6ms, 90th %-ile: 7ms, 95th %-ile: 7ms, 99.9th %-ile: 9ms | |
| rpc-method.beeswax.BeeswaxService.get_default_configuration.call_duration | Count: 5580, min / max: 0 / 2ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 0, 95th %-ile: 0, 99.9th %-ile: 1ms | |
| rpc-method.beeswax.BeeswaxService.get_log.call_duration | Count: 5580, min / max: 0 / 1ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 0, 95th %-ile: 0, 99.9th %-ile: 1ms | |
| rpc-method.beeswax.BeeswaxService.get_state.call_duration | Count: 39400, min / max: 0 / 2ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 0, 95th %-ile: 0, 99.9th %-ile: 1ms | |
| rpc-method.beeswax.BeeswaxService.query.call_duration | Count: 5580, min / max: 3ms / 74ms, 25th %-ile: 4ms, 50th %-ile: 4ms, 75th %-ile: 5ms, 90th %-ile: 5ms, 95th %-ile: 5ms, 99.9th %-ile: 26ms | |
| rpc-method.beeswax.ImpalaService.CloseInsert.call_duration | Count: 5428, min / max: 2ms / 62ms, 25th %-ile: 3ms, 50th %-ile: 4ms, 75th %-ile: 6ms, 90th %-ile: 7ms, 95th %-ile: 7ms, 99.9th %-ile: 11ms | |
| rpc-method.beeswax.ImpalaService.GetRuntimeProfile.call_duration | Count: 5428, min / max: 0 / 1ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 0, 95th %-ile: 1ms, 99.9th %-ile: 1ms | |
| rpc-method.beeswax.ImpalaService.PingImpalaService.call_duration | Count: 5580, min / max: 0 / 19ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 0, 95th %-ile: 0, 99.9th %-ile: 10ms | |
| rpc-method.hs2.TCLIService.CloseOperation.call_duration | Count: 2277, min / max: 0 / 23ms, 25th %-ile: 1ms, 50th %-ile: 1ms, 75th %-ile: 1ms, 90th %-ile: 3ms, 95th %-ile: 5ms, 99.9th %-ile: 12ms | |
| rpc-method.hs2.TCLIService.CloseSession.call_duration | Count: 2915, min / max: 0 / 4ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 0, 95th %-ile: 1ms, 99.9th %-ile: 1ms | |
| rpc-method.hs2.TCLIService.ExecuteStatement.call_duration | Count: 2300, min / max: 1ms / 20s213ms, 25th %-ile: 2ms, 50th %-ile: 3ms, 75th %-ile: 15ms, 90th %-ile: 80ms, 95th %-ile: 268ms, 99.9th %-ile: 20s112ms | |
| rpc-method.hs2.TCLIService.FetchResults.call_duration | Count: 3198, min / max: 0 / 31ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 1ms, 95th %-ile: 1ms, 99.9th %-ile: 15ms | |
| rpc-method.hs2.TCLIService.GetInfo.call_duration | Count: 2066, min / max: 0 / 31ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 0, 95th %-ile: 1ms, 99.9th %-ile: 17ms | |
| rpc-method.hs2.TCLIService.GetOperationStatus.call_duration | Count: 2375, min / max: 0 / 1ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 0, 95th %-ile: 0, 99.9th %-ile: 1ms | |
| rpc-method.hs2.TCLIService.GetResultSetMetadata.call_duration | Count: 1760, min / max: 0 / 1ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 0, 95th %-ile: 1ms, 99.9th %-ile: 1ms | |
| rpc-method.hs2.TCLIService.OpenSession.call_duration | Count: 3099, min / max: 0 / 111ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 1ms, 95th %-ile: 1ms, 99.9th %-ile: 93ms | |
| statestore-subscriber.registration-id | 734892cd1f859425:9b09443282647cb4 | The most recent registration ID for this subscriber with the statestore. Set to 'N/A' if no registration has been completed |
| statestore-subscriber.statestore.client-cache.clients-in-use | 0 | The number of active StateStore subscriber clients in this Impala Daemon's client cache. These clients are for communication from this role to the StateStore. |
| statestore-subscriber.statestore.client-cache.total-clients | 1 | The total number of StateStore subscriber clients in this Impala Daemon's client cache. These clients are for communication from this role to the StateStore. |
| thread-manager.running-threads | 28 | The number of running threads in this process. |
| thread-manager.total-threads-created | 79818 | Threads created over the lifetime of the process. |
| tmp-file-mgr.active-scratch-dirs | 2 | The number of active scratch directories for spilling to disk. |
| tmp-file-mgr.active-scratch-dirs.list | [/data1/impala/impalad/impala-scratch, /data2/impala/impalad/impala-scratch] | The set of all active scratch directories for spilling to disk. |
| tzdata-path | /usr/share/zoneinfo | Path to the time-zone database |
| Name | Value | Description |
|---|---|---|
| admission-controller.agg-mem-reserved.root.admin | 0 | Resource Pool root.admin Aggregate Mem Reserved |
| admission-controller.agg-mem-reserved.root.default | 0 | Resource Pool root.default Aggregate Mem Reserved |
| admission-controller.agg-mem-reserved.root.root | 0 | Resource Pool root.root Aggregate Mem Reserved |
| admission-controller.agg-num-queued.root.admin | 0 | Resource Pool root.admin Aggregate Queue Size |
| admission-controller.agg-num-queued.root.default | 0 | Resource Pool root.default Aggregate Queue Size |
| admission-controller.agg-num-queued.root.root | 0 | Resource Pool root.root Aggregate Queue Size |
| admission-controller.agg-num-running.root.admin | 0 | Resource Pool root.admin Aggregate Num Running |
| admission-controller.agg-num-running.root.default | 0 | Resource Pool root.default Aggregate Num Running |
| admission-controller.agg-num-running.root.root | 0 | Resource Pool root.root Aggregate Num Running |
| admission-controller.local-backend-mem-reserved.root.admin | 0 | Resource Pool root.admin Mem Reserved by the backend coordinator |
| admission-controller.local-backend-mem-reserved.root.default | 0 | Resource Pool root.default Mem Reserved by the backend coordinator |
| admission-controller.local-backend-mem-reserved.root.root | 0 | Resource Pool root.root Mem Reserved by the backend coordinator |
| admission-controller.local-backend-mem-usage.root.admin | 0 | Resource Pool root.admin Coordinator Backend Mem Usage |
| admission-controller.local-backend-mem-usage.root.default | 0 | Resource Pool root.default Coordinator Backend Mem Usage |
| admission-controller.local-backend-mem-usage.root.root | 0 | Resource Pool root.root Coordinator Backend Mem Usage |
| admission-controller.local-mem-admitted.root.admin | 0 | Resource Pool root.admin Local Mem Admitted |
| admission-controller.local-mem-admitted.root.default | 0 | Resource Pool root.default Local Mem Admitted |
| admission-controller.local-mem-admitted.root.root | 0 | Resource Pool root.root Local Mem Admitted |
| admission-controller.local-num-admitted-running.root.admin | 0 | Resource Pool root.admin Coordinator Backend Num Running |
| admission-controller.local-num-admitted-running.root.default | 0 | Resource Pool root.default Coordinator Backend Num Running |
| admission-controller.local-num-admitted-running.root.root | 0 | Resource Pool root.root Coordinator Backend Num Running |
| admission-controller.local-num-queued.root.admin | 0 | Resource Pool root.admin Queue Size on the coordinator |
| admission-controller.local-num-queued.root.default | 0 | Resource Pool root.default Queue Size on the coordinator |
| admission-controller.local-num-queued.root.root | 0 | Resource Pool root.root Queue Size on the coordinator |
| admission-controller.pool-clamp-mem-limit-query-option.root.admin | false | If false, the mem_limit query option will not be bounded by the max/min query mem limits specified for the pool |
| admission-controller.pool-clamp-mem-limit-query-option.root.default | true | If false, the mem_limit query option will not be bounded by the max/min query mem limits specified for the pool |
| admission-controller.pool-clamp-mem-limit-query-option.root.root | true | If false, the mem_limit query option will not be bounded by the max/min query mem limits specified for the pool |
| admission-controller.pool-max-mem-resources.root.admin | 0 | Resource Pool root.admin Configured Max Mem Resources |
| admission-controller.pool-max-mem-resources.root.default | -1 | Resource Pool root.default Configured Max Mem Resources |
| admission-controller.pool-max-mem-resources.root.root | -1 | Resource Pool root.root Configured Max Mem Resources |
| admission-controller.pool-max-query-mem-limit.root.admin | 0 | Resource Pool root.admin Max Query Memory Limit |
| admission-controller.pool-max-query-mem-limit.root.default | 0 | Resource Pool root.default Max Query Memory Limit |
| admission-controller.pool-max-query-mem-limit.root.root | 0 | Resource Pool root.root Max Query Memory Limit |
| admission-controller.pool-max-queued.root.admin | 0 | Resource Pool root.admin Configured Max Queued |
| admission-controller.pool-max-queued.root.default | 200 | Resource Pool root.default Configured Max Queued |
| admission-controller.pool-max-queued.root.root | 200 | Resource Pool root.root Configured Max Queued |
| admission-controller.pool-max-requests.root.admin | 0 | Resource Pool root.admin Configured Max Requests |
| admission-controller.pool-max-requests.root.default | -1 | Resource Pool root.default Configured Max Requests |
| admission-controller.pool-max-requests.root.root | -1 | Resource Pool root.root Configured Max Requests |
| admission-controller.pool-min-query-mem-limit.root.admin | 0 | Resource Pool root.admin Min Query Memory Limit |
| admission-controller.pool-min-query-mem-limit.root.default | 0 | Resource Pool root.default Min Query Memory Limit |
| admission-controller.pool-min-query-mem-limit.root.root | 0 | Resource Pool root.root Min Query Memory Limit |
| admission-controller.time-in-queue-ms.root.admin | 0 | Resource Pool root.admin Time in Queue |
| admission-controller.time-in-queue-ms.root.default | 0 | Resource Pool root.default Time in Queue |
| admission-controller.time-in-queue-ms.root.root | 0 | Resource Pool root.root Time in Queue |
| admission-controller.total-admitted.root.admin | 0 | Total number of requests admitted to pool root.admin |
| admission-controller.total-admitted.root.default | 669 | Total number of requests admitted to pool root.default |
| admission-controller.total-admitted.root.root | 3.60K | Total number of requests admitted to pool root.root |
| admission-controller.total-dequeued.root.admin | 0 | Total number of requests dequeued in pool root.admin |
| admission-controller.total-dequeued.root.default | 0 | Total number of requests dequeued in pool root.default |
| admission-controller.total-dequeued.root.root | 0 | Total number of requests dequeued in pool root.root |
| admission-controller.total-queued.root.admin | 0 | Total number of requests queued in pool root.admin |
| admission-controller.total-queued.root.default | 0 | Total number of requests queued in pool root.default |
| admission-controller.total-queued.root.root | 0 | Total number of requests queued in pool root.root |
| admission-controller.total-rejected.root.admin | 0 | Total number of requests rejected in pool root.admin |
| admission-controller.total-rejected.root.default | 0 | Total number of requests rejected in pool root.default |
| admission-controller.total-rejected.root.root | 0 | Total number of requests rejected in pool root.root |
| admission-controller.total-released.root.admin | 0 | Total number of requests that have completed and released resources in pool root.admin |
| admission-controller.total-released.root.default | 669 | Total number of requests that have completed and released resources in pool root.default |
| admission-controller.total-released.root.root | 3.60K | Total number of requests that have completed and released resources in pool root.root |
| admission-controller.total-timed-out.root.admin | 0 | Total number of requests timed out waiting while queued in pool root.admin |
| admission-controller.total-timed-out.root.default | 0 | Total number of requests timed out waiting while queued in pool root.default |
| admission-controller.total-timed-out.root.root | 0 | Total number of requests timed out waiting while queued in pool root.root |
| Name | Value | Description |
|---|---|---|
| buffer-pool.arena-0.allocated-buffer-sizes | Count: 367, min / max: 8.00 KB / 128.00 KB, 25th %-ile: 8.00 KB, 50th %-ile: 8.00 KB, 75th %-ile: 64.00 KB, 90th %-ile: 64.00 KB, 95th %-ile: 64.00 KB, 99.9th %-ile: 128.00 KB | Statistics for buffer sizes allocated from the system. Only a subset of allocations are counted in this metric to reduce overhead. |
| buffer-pool.arena-0.clean-page-hits | 0 | Number of times a clean page was evicted to fulfil an allocation. |
| buffer-pool.arena-0.direct-alloc-count | 23.51K | Number of times a new buffer was directly allocated from the system allocator to fulfil an allocation. |
| buffer-pool.arena-0.local-arena-free-buffer-hits | 8.56K | Number of times a free buffer was recycled from this core's arena to fulfil an allocation. |
| buffer-pool.arena-0.num-final-scavenges | 0 | Number of times the allocator had to lock all arenas and scavenge to fulfil an allocation. |
| buffer-pool.arena-0.num-scavenges | 0 | Number of times the allocator had to scavenge to fulfil an allocation. |
| buffer-pool.arena-0.numa-arena-free-buffer-hits | 0 | Number of times that a recycled buffer within the same NUMA node was used to fulfil an allocation. |
| buffer-pool.arena-0.system-alloc-time | 58.002ms | Total time the buffer pool spent in the system allocator for this arena. |
| buffer-pool.arena-1.allocated-buffer-sizes | Count: 550, min / max: 8.00 KB / 128.00 KB, 25th %-ile: 64.00 KB, 50th %-ile: 64.00 KB, 75th %-ile: 64.00 KB, 90th %-ile: 64.00 KB, 95th %-ile: 64.00 KB, 99.9th %-ile: 128.00 KB | Statistics for buffer sizes allocated from the system. Only a subset of allocations are counted in this metric to reduce overhead. |
| buffer-pool.arena-1.clean-page-hits | 0 | Number of times a clean page was evicted to fulfil an allocation. |
| buffer-pool.arena-1.direct-alloc-count | 35.21K | Number of times a new buffer was directly allocated from the system allocator to fulfil an allocation. |
| buffer-pool.arena-1.local-arena-free-buffer-hits | 4.15K | Number of times a free buffer was recycled from this core's arena to fulfil an allocation. |
| buffer-pool.arena-1.num-final-scavenges | 0 | Number of times the allocator had to lock all arenas and scavenge to fulfil an allocation. |
| buffer-pool.arena-1.num-scavenges | 0 | Number of times the allocator had to scavenge to fulfil an allocation. |
| buffer-pool.arena-1.numa-arena-free-buffer-hits | 0 | Number of times that a recycled buffer within the same NUMA node was used to fulfil an allocation. |
| buffer-pool.arena-1.system-alloc-time | 114.004ms | Total time the buffer pool spent in the system allocator for this arena. |
| buffer-pool.arena-2.allocated-buffer-sizes | Count: 354, min / max: 8.00 KB / 128.00 KB, 25th %-ile: 8.00 KB, 50th %-ile: 8.00 KB, 75th %-ile: 64.00 KB, 90th %-ile: 64.00 KB, 95th %-ile: 64.00 KB, 99.9th %-ile: 128.00 KB | Statistics for buffer sizes allocated from the system. Only a subset of allocations are counted in this metric to reduce overhead. |
| buffer-pool.arena-2.clean-page-hits | 0 | Number of times a clean page was evicted to fulfil an allocation. |
| buffer-pool.arena-2.direct-alloc-count | 22.71K | Number of times a new buffer was directly allocated from the system allocator to fulfil an allocation. |
| buffer-pool.arena-2.local-arena-free-buffer-hits | 8.04K | Number of times a free buffer was recycled from this core's arena to fulfil an allocation. |
| buffer-pool.arena-2.num-final-scavenges | 0 | Number of times the allocator had to lock all arenas and scavenge to fulfil an allocation. |
| buffer-pool.arena-2.num-scavenges | 0 | Number of times the allocator had to scavenge to fulfil an allocation. |
| buffer-pool.arena-2.numa-arena-free-buffer-hits | 0 | Number of times that a recycled buffer within the same NUMA node was used to fulfil an allocation. |
| buffer-pool.arena-2.system-alloc-time | 37.001ms | Total time the buffer pool spent in the system allocator for this arena. |
| buffer-pool.arena-3.allocated-buffer-sizes | Count: 555, min / max: 8.00 KB / 128.00 KB, 25th %-ile: 64.00 KB, 50th %-ile: 64.00 KB, 75th %-ile: 64.00 KB, 90th %-ile: 64.00 KB, 95th %-ile: 64.00 KB, 99.9th %-ile: 128.00 KB | Statistics for buffer sizes allocated from the system. Only a subset of allocations are counted in this metric to reduce overhead. |
| buffer-pool.arena-3.clean-page-hits | 0 | Number of times a clean page was evicted to fulfil an allocation. |
| buffer-pool.arena-3.direct-alloc-count | 35.55K | Number of times a new buffer was directly allocated from the system allocator to fulfil an allocation. |
| buffer-pool.arena-3.local-arena-free-buffer-hits | 4.17K | Number of times a free buffer was recycled from this core's arena to fulfil an allocation. |
| buffer-pool.arena-3.num-final-scavenges | 0 | Number of times the allocator had to lock all arenas and scavenge to fulfil an allocation. |
| buffer-pool.arena-3.num-scavenges | 0 | Number of times the allocator had to scavenge to fulfil an allocation. |
| buffer-pool.arena-3.numa-arena-free-buffer-hits | 0 | Number of times that a recycled buffer within the same NUMA node was used to fulfil an allocation. |
| buffer-pool.arena-3.system-alloc-time | 120.004ms | Total time the buffer pool spent in the system allocator for this arena. |
| buffer-pool.arena-4.allocated-buffer-sizes | Count: 353, min / max: 8.00 KB / 64.00 KB, 25th %-ile: 8.00 KB, 50th %-ile: 8.00 KB, 75th %-ile: 64.00 KB, 90th %-ile: 64.00 KB, 95th %-ile: 64.00 KB, 99.9th %-ile: 64.00 KB | Statistics for buffer sizes allocated from the system. Only a subset of allocations are counted in this metric to reduce overhead. |
| buffer-pool.arena-4.clean-page-hits | 0 | Number of times a clean page was evicted to fulfil an allocation. |
| buffer-pool.arena-4.direct-alloc-count | 22.60K | Number of times a new buffer was directly allocated from the system allocator to fulfil an allocation. |
| buffer-pool.arena-4.local-arena-free-buffer-hits | 8.54K | Number of times a free buffer was recycled from this core's arena to fulfil an allocation. |
| buffer-pool.arena-4.num-final-scavenges | 0 | Number of times the allocator had to lock all arenas and scavenge to fulfil an allocation. |
| buffer-pool.arena-4.num-scavenges | 0 | Number of times the allocator had to scavenge to fulfil an allocation. |
| buffer-pool.arena-4.numa-arena-free-buffer-hits | 0 | Number of times that a recycled buffer within the same NUMA node was used to fulfil an allocation. |
| buffer-pool.arena-4.system-alloc-time | 39.001ms | Total time the buffer pool spent in the system allocator for this arena. |
| buffer-pool.arena-5.allocated-buffer-sizes | Count: 530, min / max: 8.00 KB / 128.00 KB, 25th %-ile: 64.00 KB, 50th %-ile: 64.00 KB, 75th %-ile: 64.00 KB, 90th %-ile: 64.00 KB, 95th %-ile: 64.00 KB, 99.9th %-ile: 128.00 KB | Statistics for buffer sizes allocated from the system. Only a subset of allocations are counted in this metric to reduce overhead. |
| buffer-pool.arena-5.clean-page-hits | 0 | Number of times a clean page was evicted to fulfil an allocation. |
| buffer-pool.arena-5.direct-alloc-count | 33.97K | Number of times a new buffer was directly allocated from the system allocator to fulfil an allocation. |
| buffer-pool.arena-5.local-arena-free-buffer-hits | 3.31K | Number of times a free buffer was recycled from this core's arena to fulfil an allocation. |
| buffer-pool.arena-5.num-final-scavenges | 0 | Number of times the allocator had to lock all arenas and scavenge to fulfil an allocation. |
| buffer-pool.arena-5.num-scavenges | 0 | Number of times the allocator had to scavenge to fulfil an allocation. |
| buffer-pool.arena-5.numa-arena-free-buffer-hits | 0 | Number of times that a recycled buffer within the same NUMA node was used to fulfil an allocation. |
| buffer-pool.arena-5.system-alloc-time | 121.004ms | Total time the buffer pool spent in the system allocator for this arena. |
| buffer-pool.arena-6.allocated-buffer-sizes | Count: 347, min / max: 8.00 KB / 64.00 KB, 25th %-ile: 8.00 KB, 50th %-ile: 8.00 KB, 75th %-ile: 64.00 KB, 90th %-ile: 64.00 KB, 95th %-ile: 64.00 KB, 99.9th %-ile: 64.00 KB | Statistics for buffer sizes allocated from the system. Only a subset of allocations are counted in this metric to reduce overhead. |
| buffer-pool.arena-6.clean-page-hits | 0 | Number of times a clean page was evicted to fulfil an allocation. |
| buffer-pool.arena-6.direct-alloc-count | 22.22K | Number of times a new buffer was directly allocated from the system allocator to fulfil an allocation. |
| buffer-pool.arena-6.local-arena-free-buffer-hits | 8.34K | Number of times a free buffer was recycled from this core's arena to fulfil an allocation. |
| buffer-pool.arena-6.num-final-scavenges | 0 | Number of times the allocator had to lock all arenas and scavenge to fulfil an allocation. |
| buffer-pool.arena-6.num-scavenges | 0 | Number of times the allocator had to scavenge to fulfil an allocation. |
| buffer-pool.arena-6.numa-arena-free-buffer-hits | 0 | Number of times that a recycled buffer within the same NUMA node was used to fulfil an allocation. |
| buffer-pool.arena-6.system-alloc-time | 24.000ms | Total time the buffer pool spent in the system allocator for this arena. |
| buffer-pool.arena-7.allocated-buffer-sizes | Count: 530, min / max: 8.00 KB / 128.00 KB, 25th %-ile: 64.00 KB, 50th %-ile: 64.00 KB, 75th %-ile: 64.00 KB, 90th %-ile: 64.00 KB, 95th %-ile: 64.00 KB, 99.9th %-ile: 128.00 KB | Statistics for buffer sizes allocated from the system. Only a subset of allocations are counted in this metric to reduce overhead. |
| buffer-pool.arena-7.clean-page-hits | 0 | Number of times a clean page was evicted to fulfil an allocation. |
| buffer-pool.arena-7.direct-alloc-count | 33.98K | Number of times a new buffer was directly allocated from the system allocator to fulfil an allocation. |
| buffer-pool.arena-7.local-arena-free-buffer-hits | 3.79K | Number of times a free buffer was recycled from this core's arena to fulfil an allocation. |
| buffer-pool.arena-7.num-final-scavenges | 0 | Number of times the allocator had to lock all arenas and scavenge to fulfil an allocation. |
| buffer-pool.arena-7.num-scavenges | 0 | Number of times the allocator had to scavenge to fulfil an allocation. |
| buffer-pool.arena-7.numa-arena-free-buffer-hits | 0 | Number of times that a recycled buffer within the same NUMA node was used to fulfil an allocation. |
| buffer-pool.arena-7.system-alloc-time | 110.003ms | Total time the buffer pool spent in the system allocator for this arena. |
| buffer-pool.clean-page-bytes | 0 | Total bytes of clean page memory cached in the buffer pool. |
| buffer-pool.clean-pages | 0 | Total number of clean pages cached in the buffer pool. |
| buffer-pool.clean-pages-limit | 4.20 GB | Limit on number of clean pages cached in the buffer pool. |
| buffer-pool.free-buffer-bytes | 0 | Total bytes of free buffer memory cached in the buffer pool. |
| buffer-pool.free-buffers | 0 | Total number of free buffers cached in the buffer pool. |
| buffer-pool.limit | 42.00 GB | Maximum allowed bytes allocated by the buffer pool. |
| buffer-pool.reserved | 0 | Total bytes of buffers reserved by Impala subsystems |
| buffer-pool.system-allocated | 0 | Total buffer memory currently allocated by the buffer pool. |
| buffer-pool.unused-reservation-bytes | 0 | Total bytes of buffer reservations by Impala subsystems that are currently unused |
| Name | Value | Description |
|---|---|---|
| senders-blocked-on-recvr-creation | 0 | Number of senders waiting for receiving fragment to initialize |
| total-senders-blocked-on-recvr-creation | 0 | Total number of senders that have been blocked waiting for receiving fragment to initialize. |
| total-senders-timedout-waiting-for-recvr-creation | 0 | Total number of senders that timed-out waiting for receiving fragment to initialize. |
| Name | Value | Description |
|---|---|---|
| impala-server.backend-num-queries-executed | 16.56K | The total number of queries that executed on this backend over the life of the process. |
| impala-server.backend-num-queries-executing | 0 | The number of queries currently executing on this backend. |
| impala-server.ddl-durations-ms | Count: 3218, min / max: 8ms / 20s211ms, 25th %-ile: 22ms, 50th %-ile: 27ms, 75th %-ile: 57ms, 90th %-ile: 253ms, 95th %-ile: 286ms, 99.9th %-ile: 20s096ms | Distribution of DDL operation latencies |
| impala-server.hash-table.total-bytes | 0 | The current size of all allocated hash tables. |
| impala-server.hedged-read-ops | 0 | The total number of hedged reads attempted over the life of the process |
| impala-server.hedged-read-ops-win | 0 | The total number of times hedged reads were faster than regular read operations |
| impala-server.io-mgr.bytes-read | 426.33 MB | The total number of bytes read by the IO manager. |
| impala-server.io-mgr.bytes-written | 0 | Total number of bytes written to disk by the IO manager. |
| impala-server.io-mgr.cached-bytes-read | 0 | Total number of cached bytes read by the IO manager. |
| impala-server.io-mgr.local-bytes-read | 426.33 MB | Total number of local bytes read by the IO manager. |
| impala-server.io-mgr.num-open-files | 0 | The current number of files opened by the IO Manager |
| impala-server.io-mgr.remote-data-cache-dropped-bytes | 0 | Total number of bytes not inserted in remote data cache due to concurrency limit. |
| impala-server.io-mgr.remote-data-cache-hit-bytes | 0 | Total number of bytes of hits in the remote data cache. |
| impala-server.io-mgr.remote-data-cache-miss-bytes | 0 | Total number of bytes of misses in the remote data cache. |
| impala-server.io-mgr.remote-data-cache-total-bytes | 0 | Current byte size of the remote data cache. |
| impala-server.io-mgr.short-circuit-bytes-read | 426.33 MB | Total number of short-circuit bytes read by the IO manager. |
| impala-server.io.mgr.cached-file-handles-hit-count | 7735 | Number of cache hits for cached HDFS file handles |
| impala-server.io.mgr.cached-file-handles-hit-ratio | Last (of ): 1. Min: , max: , avg: 0.991667 | HDFS file handle cache hit ratio, between 0 and 1, where 1 means all reads were served from cached file handles. |
| impala-server.io.mgr.cached-file-handles-miss-count | 65 | Number of cache misses for cached HDFS file handles |
| impala-server.io.mgr.cached-file-handles-reopened | 0 | Number of cached HDFS file handles reopened |
| impala-server.io.mgr.num-cached-file-handles | 0 | Number of currently cached HDFS file handles in the IO manager. |
| impala-server.io.mgr.num-file-handles-outstanding | 0 | Number of HDFS file handles that are currently in use by readers. |
| impala-server.mem-pool.total-bytes | 0 | The current size of the memory pool shared by all queries |
| impala-server.num-files-open-for-insert | 0 | The number of HDFS files currently open for writing. |
| impala-server.num-fragments | 11.10K | The total number of query fragments processed over the life of the process. |
| impala-server.num-fragments-in-flight | 0 | The number of query fragment instances currently executing. |
| impala-server.num-open-beeswax-sessions | 0 | The number of open Beeswax sessions. |
| impala-server.num-open-hiveserver2-sessions | 0 | The number of open HiveServer2 sessions. |
| impala-server.num-queries | 19.78K | The total number of queries processed over the life of the process |
| impala-server.num-queries-expired | 0 | Number of queries expired due to inactivity. |
| impala-server.num-queries-registered | 0 | The total number of queries registered on this Impala server instance. Includes queries that are in flight and waiting to be closed |
| impala-server.num-queries-spilled | 0 | Number of queries for which any operator spilled. |
| impala-server.num-sessions-expired | 0 | Number of sessions expired due to inactivity. |
| impala-server.query-durations-ms | Count: 16559, min / max: 6ms / 1s135ms, 25th %-ile: 126ms, 50th %-ile: 132ms, 75th %-ile: 146ms, 90th %-ile: 170ms, 95th %-ile: 194ms, 99.9th %-ile: 724ms | Distribution of query latencies |
| impala-server.ready | true | Indicates if the Impala Server is ready. |
| impala-server.resultset-cache.total-bytes | 0 | Total number of bytes consumed for rows cached to support HS2 FETCH_FIRST. |
| impala-server.resultset-cache.total-num-rows | 0 | Total number of rows cached to support HS2 FETCH_FIRST. |
| impala-server.scan-ranges.num-missing-volume-id | 0 | The total number of scan ranges read over the life of the process that did not have volume metadata |
| impala-server.scan-ranges.total | 3.90K | The total number of scan ranges read over the life of the process |
| impala-server.version | impalad version 3.2.0-cdh6.3.2 RELEASE (build 1bb9836227301b839a32c6bc230e35439d5984ac) | The full version string of the Impala Server. |
| Name | Value | Description |
|---|---|---|
| catalog.curr-serviceid | f5695436c38e42b6:b054890354a639ce | Catalog service id. |
| catalog.curr-topic | 73677 | Statestore topic update version. |
| catalog.curr-version | 37174 | Catalog topic update version. |
| catalog.num-databases | 15 | The number of databases in the catalog. |
| catalog.num-tables | 154 | The number of tables in the catalog. |
| catalog.ready | true | Indicates if the catalog is ready. |
| Name | Value | Description |
|---|---|---|
| jvm.code-cache.committed-usage-bytes | 30.94 MB | Jvm code-cache Committed Usage Bytes |
| jvm.code-cache.current-usage-bytes | 29.96 MB | Jvm code-cache Current Usage Bytes |
| jvm.code-cache.init-usage-bytes | 2.44 MB | Jvm code-cache Init Usage Bytes |
| jvm.code-cache.max-usage-bytes | 240.00 MB | Jvm code-cache Max Usage Bytes |
| jvm.code-cache.peak-committed-usage-bytes | 30.94 MB | Jvm code-cache Peak Committed Usage Bytes |
| jvm.code-cache.peak-current-usage-bytes | 30.33 MB | Jvm code-cache Peak Current Usage Bytes |
| jvm.code-cache.peak-init-usage-bytes | 2.44 MB | Jvm code-cache Peak Init Usage Bytes |
| jvm.code-cache.peak-max-usage-bytes | 240.00 MB | Jvm code-cache Peak Max Usage Bytes |
| jvm.compressed-class-space.committed-usage-bytes | 4.50 MB | Jvm compressed-class-space Committed Usage Bytes |
| jvm.compressed-class-space.current-usage-bytes | 4.34 MB | Jvm compressed-class-space Current Usage Bytes |
| jvm.compressed-class-space.init-usage-bytes | 0 | Jvm compressed-class-space Init Usage Bytes |
| jvm.compressed-class-space.max-usage-bytes | 1.00 GB | Jvm compressed-class-space Max Usage Bytes |
| jvm.compressed-class-space.peak-committed-usage-bytes | 4.50 MB | Jvm compressed-class-space Peak Committed Usage Bytes |
| jvm.compressed-class-space.peak-current-usage-bytes | 4.34 MB | Jvm compressed-class-space Peak Current Usage Bytes |
| jvm.compressed-class-space.peak-init-usage-bytes | 0 | Jvm compressed-class-space Peak Init Usage Bytes |
| jvm.compressed-class-space.peak-max-usage-bytes | 1.00 GB | Jvm compressed-class-space Peak Max Usage Bytes |
| jvm.gc_count | 840 | Jvm Garbage Collection Count |
| jvm.gc_num_info_threshold_exceeded | 0 | Jvm Pause Detection Info Threshold Exceeded |
| jvm.gc_num_warn_threshold_exceeded | 0 | Jvm Pause Detection Warning Threshold Exceeded |
| jvm.gc_time_millis | 5s764ms | Jvm Garbage Collection Time |
| jvm.gc_total_extra_sleep_time_millis | 24m8s | Jvm Pause Detection Extra Sleep Time |
| jvm.heap.committed-usage-bytes | 382.00 MB | Jvm heap Committed Usage Bytes |
| jvm.heap.current-usage-bytes | 258.03 MB | Jvm heap Current Usage Bytes |
| jvm.heap.init-usage-bytes | 394.00 MB | Jvm heap Init Usage Bytes |
| jvm.heap.max-usage-bytes | 382.00 MB | Jvm heap Max Usage Bytes |
| jvm.heap.peak-committed-usage-bytes | 0 | Jvm heap Peak Committed Usage Bytes |
| jvm.heap.peak-current-usage-bytes | 0 | Jvm heap Peak Current Usage Bytes |
| jvm.heap.peak-init-usage-bytes | 0 | Jvm heap Peak Init Usage Bytes |
| jvm.heap.peak-max-usage-bytes | 0 | Jvm heap Peak Max Usage Bytes |
| jvm.metaspace.committed-usage-bytes | 46.46 MB | Jvm metaspace Committed Usage Bytes |
| jvm.metaspace.current-usage-bytes | 45.81 MB | Jvm metaspace Current Usage Bytes |
| jvm.metaspace.init-usage-bytes | 0 | Jvm metaspace Init Usage Bytes |
| jvm.metaspace.max-usage-bytes | -1.00 B | Jvm metaspace Max Usage Bytes |
| jvm.metaspace.peak-committed-usage-bytes | 46.46 MB | Jvm metaspace Peak Committed Usage Bytes |
| jvm.metaspace.peak-current-usage-bytes | 45.81 MB | Jvm metaspace Peak Current Usage Bytes |
| jvm.metaspace.peak-init-usage-bytes | 0 | Jvm metaspace Peak Init Usage Bytes |
| jvm.metaspace.peak-max-usage-bytes | -1.00 B | Jvm metaspace Peak Max Usage Bytes |
| jvm.non-heap.committed-usage-bytes | 81.90 MB | Jvm non-heap Committed Usage Bytes |
| jvm.non-heap.current-usage-bytes | 80.11 MB | Jvm non-heap Current Usage Bytes |
| jvm.non-heap.init-usage-bytes | 2.44 MB | Jvm non-heap Init Usage Bytes |
| jvm.non-heap.max-usage-bytes | -1.00 B | Jvm non-heap Max Usage Bytes |
| jvm.non-heap.peak-committed-usage-bytes | 0 | Jvm non-heap Peak Committed Usage Bytes |
| jvm.non-heap.peak-current-usage-bytes | 0 | Jvm non-heap Peak Current Usage Bytes |
| jvm.non-heap.peak-init-usage-bytes | 0 | Jvm non-heap Peak Init Usage Bytes |
| jvm.non-heap.peak-max-usage-bytes | 0 | Jvm non-heap Peak Max Usage Bytes |
| jvm.ps-eden-space.committed-usage-bytes | 107.00 MB | Jvm ps-eden-space Committed Usage Bytes |
| jvm.ps-eden-space.current-usage-bytes | 48.99 MB | Jvm ps-eden-space Current Usage Bytes |
| jvm.ps-eden-space.init-usage-bytes | 99.00 MB | Jvm ps-eden-space Init Usage Bytes |
| jvm.ps-eden-space.max-usage-bytes | 107.00 MB | Jvm ps-eden-space Max Usage Bytes |
| jvm.ps-eden-space.peak-committed-usage-bytes | 116.00 MB | Jvm ps-eden-space Peak Committed Usage Bytes |
| jvm.ps-eden-space.peak-current-usage-bytes | 116.00 MB | Jvm ps-eden-space Peak Current Usage Bytes |
| jvm.ps-eden-space.peak-init-usage-bytes | 99.00 MB | Jvm ps-eden-space Peak Init Usage Bytes |
| jvm.ps-eden-space.peak-max-usage-bytes | 116.00 MB | Jvm ps-eden-space Peak Max Usage Bytes |
| jvm.ps-old-gen.committed-usage-bytes | 263.00 MB | Jvm ps-old-gen Committed Usage Bytes |
| jvm.ps-old-gen.current-usage-bytes | 199.61 MB | Jvm ps-old-gen Current Usage Bytes |
| jvm.ps-old-gen.init-usage-bytes | 263.00 MB | Jvm ps-old-gen Init Usage Bytes |
| jvm.ps-old-gen.max-usage-bytes | 263.00 MB | Jvm ps-old-gen Max Usage Bytes |
| jvm.ps-old-gen.peak-committed-usage-bytes | 263.00 MB | Jvm ps-old-gen Peak Committed Usage Bytes |
| jvm.ps-old-gen.peak-current-usage-bytes | 199.61 MB | Jvm ps-old-gen Peak Current Usage Bytes |
| jvm.ps-old-gen.peak-init-usage-bytes | 263.00 MB | Jvm ps-old-gen Peak Init Usage Bytes |
| jvm.ps-old-gen.peak-max-usage-bytes | 263.00 MB | Jvm ps-old-gen Peak Max Usage Bytes |
| jvm.ps-survivor-space.committed-usage-bytes | 12.00 MB | Jvm ps-survivor-space Committed Usage Bytes |
| jvm.ps-survivor-space.current-usage-bytes | 9.42 MB | Jvm ps-survivor-space Current Usage Bytes |
| jvm.ps-survivor-space.init-usage-bytes | 16.00 MB | Jvm ps-survivor-space Init Usage Bytes |
| jvm.ps-survivor-space.max-usage-bytes | 12.00 MB | Jvm ps-survivor-space Max Usage Bytes |
| jvm.ps-survivor-space.peak-committed-usage-bytes | 24.50 MB | Jvm ps-survivor-space Peak Committed Usage Bytes |
| jvm.ps-survivor-space.peak-current-usage-bytes | 19.22 MB | Jvm ps-survivor-space Peak Current Usage Bytes |
| jvm.ps-survivor-space.peak-init-usage-bytes | 16.00 MB | Jvm ps-survivor-space Peak Init Usage Bytes |
| jvm.ps-survivor-space.peak-max-usage-bytes | 24.50 MB | Jvm ps-survivor-space Peak Max Usage Bytes |
| jvm.total.committed-usage-bytes | 463.90 MB | Jvm total Committed Usage Bytes |
| jvm.total.current-usage-bytes | 338.14 MB | Jvm total Current Usage Bytes |
| jvm.total.init-usage-bytes | 380.44 MB | Jvm total Init Usage Bytes |
| jvm.total.max-usage-bytes | 1.61 GB | Jvm total Max Usage Bytes |
| jvm.total.peak-committed-usage-bytes | 485.40 MB | Jvm total Peak Committed Usage Bytes |
| jvm.total.peak-current-usage-bytes | 415.32 MB | Jvm total Peak Current Usage Bytes |
| jvm.total.peak-init-usage-bytes | 380.44 MB | Jvm total Peak Init Usage Bytes |
| jvm.total.peak-max-usage-bytes | 1.63 GB | Jvm total Peak Max Usage Bytes |
| Name | Value | Description |
|---|---|---|
| memory.mapped-bytes | 10.75 GB | Total bytes of memory mappings in this process (the virtual memory size). |
| memory.rss | 1.16 GB | Resident set size (RSS) of this process, including TCMalloc, buffer pool and Jvm. |
| memory.thp.defrag | [always] madvise never | The system-wide 'defrag' setting for Transparent Huge Pages. |
| memory.thp.enabled | [always] madvise never | The system-wide 'enabled' setting for Transparent Huge Pages. |
| memory.thp.khugepaged-defrag | 1 | The system-wide 'defrag' setting for khugepaged. |
| memory.total-used | 791.15 MB | Total memory currently used by TCMalloc and buffer pool. |
| Name | Value | Description |
|---|---|---|
| mem-tracker.ControlService.current_usage_bytes | 0 | Memtracker ControlService Current Usage Bytes |
| mem-tracker.ControlService.peak_usage_bytes | 17.03 KB | Memtracker ControlService Peak Usage Bytes |
| mem-tracker.DataStreamService.current_usage_bytes | 0 | Memtracker DataStreamService Current Usage Bytes |
| mem-tracker.DataStreamService.peak_usage_bytes | 431.00 B | Memtracker DataStreamService Peak Usage Bytes |
| rpc.impala.ControlService.rpcs_queue_overflow | 0 | Service impala.ControlService: Total number of incoming RPCs that were rejected due to overflow of the service queue. |
| rpc.impala.DataStreamService.rpcs_queue_overflow | 0 | Service impala.DataStreamService: Total number of incoming RPCs that were rejected due to overflow of the service queue. |
| Name | Value | Description |
|---|---|---|
| simple-scheduler.assignments.total | 13.26K | The number of assignments |
| simple-scheduler.initialized | true | Indicates whether the scheduler has been initialized. |
| simple-scheduler.local-assignments.total | 13.26K | Number of assignments operating on local data |
| simple-scheduler.num-backends | 3 | The number of backend connections from this Impala Daemon to other Impala Daemons. |
| Name | Value | Description |
|---|---|---|
| rpc-method.statestore-subscriber.StatestoreSubscriber.Heartbeat.call_duration | Count: 7989689, min / max: 0 / 42ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 0, 95th %-ile: 0, 99.9th %-ile: 1ms | |
| rpc-method.statestore-subscriber.StatestoreSubscriber.UpdateState.call_duration | Count: 83673172, min / max: 0 / 3s115ms, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 0, 95th %-ile: 1ms, 99.9th %-ile: 1ms | |
| statestore-subscriber.connected | true | Whether the Impala Daemon considers itself connected to the StateStore. |
| statestore-subscriber.heartbeat-interval-time | Last (of 20131189): 1.00004. Min: 0, max: 13.6635, avg: 1.00023 | The time (sec) between Statestore heartbeats. |
| statestore-subscriber.last-recovery-duration | 0 | The amount of time the StateStore subscriber took to recover the connection the last time it was lost. |
| statestore-subscriber.last-recovery-time | N/A | The local time that the last statestore recovery happened. |
| statestore-subscriber.topic-catalog-update.processing-time-s | Last (of 10066204): 0. Min: 0, max: 22.3768, avg: 8.66488e-05 | Statestore Subscriber Topic catalog-update Processing Time |
| statestore-subscriber.topic-catalog-update.update-interval | Last (of 10066204): 2.00007. Min: 0, max: 2.96158, avg: 2.00026 | Interval between topic updates for Topic catalog-update |
| statestore-subscriber.topic-impala-membership.processing-time-s | Last (of 200805128): 0. Min: 0, max: 4.38116, avg: 9.00222e-06 | Statestore Subscriber Topic impala-membership Processing Time |
| statestore-subscriber.topic-impala-membership.update-interval | Last (of 200805128): 0.100004. Min: 0, max: 12.7235, avg: 0.10025 | Interval between topic updates for Topic impala-membership |
| statestore-subscriber.topic-impala-request-queue.processing-time-s | Last (of 200805128): 0. Min: 0, max: 4.38116, avg: 2.396e-05 | Statestore Subscriber Topic impala-request-queue Processing Time |
| statestore-subscriber.topic-impala-request-queue.update-interval | Last (of 200805128): 0.100004. Min: 0, max: 12.7235, avg: 0.100251 | Interval between topic updates for Topic impala-request-queue |
| statestore-subscriber.topic-update-duration | Last (of 210871332): 0. Min: 0, max: 22.3768, avg: 2.75937e-05 | The time (sec) taken to process Statestore subscriber topic updates. |
| statestore-subscriber.topic-update-interval-time | Last (of 411676460): 0.100004. Min: 0, max: 12.7235, avg: 0.146709 | The time (sec) between Statestore subscriber topic updates. |
| Name | Value | Description |
|---|---|---|
| tcmalloc.bytes-in-use | 736.72 MB | Number of bytes used by the application. This will not typically match the memory use reported by the OS, because it does not include TCMalloc overhead or memory fragmentation. |
| tcmalloc.pageheap-free-bytes | 0 | Number of bytes in free, mapped pages in page heap. These bytes can be used to fulfill allocation requests. They always count towards virtual memory usage, and unless the underlying memory is swapped out by the OS, they also count towards physical memory usage. |
| tcmalloc.pageheap-unmapped-bytes | 6.10 GB | Number of bytes in free, unmapped pages in page heap. These are bytes that have been released back to the OS, possibly by one of the MallocExtension "Release" calls. They can be used to fulfill allocation requests, but typically incur a page fault. They always count towards virtual memory usage, and depending on the OS, typically do not count towards physical memory usage. |
| tcmalloc.physical-bytes-reserved | 791.15 MB | Derived metric computing the amount of physical memory (in bytes) used by the process, including that actually in use and free bytes reserved by tcmalloc. Does not include the tcmalloc metadata. |
| tcmalloc.total-bytes-reserved | 6.88 GB | Bytes of system memory reserved by TCMalloc. |