Metrics

1. statestore
2. memory
3. tcmalloc

statestore

Name	Value	Description
impala.thrift-server.StatestoreService.connection-setup-queue-size	0	The number of connections to the Statestore Service that have been accepted and are waiting to be setup.
impala.thrift-server.StatestoreService.connections-in-use	4	The number of active connections to this StateStore's StateStore service.
impala.thrift-server.StatestoreService.timedout-cnxn-requests	0	The number of connection requests to the Statestore Service that have been timed out waiting to be setup.
impala.thrift-server.StatestoreService.total-connections	5	The total number of connections made to this StateStore's StateStore service over its lifetime.
kudu-client.version	kudu 1.10.0-cdh6.3.2 (rev 09cea83ce09c429de2c5c9776908db0000857495)	A version string identifying the Kudu client
process-start-time	2023-10-20 17:36:57.339479000	The local start time of the process
rpc-method.statestore.StatestoreService.RegisterSubscriber.call_duration	Count: 0, min / max: 0 / 0, 25th %-ile: 0, 50th %-ile: 0, 75th %-ile: 0, 90th %-ile: 0, 95th %-ile: 0, 99.9th %-ile: 0
statestore.heartbeat-durations	Last (of 193904800): 0.00100004. Min: 0, max: 5.05718, avg: 0.000272509	The time (sec) spent sending heartbeat RPCs. Includes subscriber-side processing time and network transmission time.
statestore.live-backends	4	The number of registered Statestore subscribers.
statestore.live-backends.list	[catalog-server@hadoop003:26000, impalad@hadoop001:22000, impalad@hadoop002:22000, impalad@hadoop003:22000]	The set of all live Statestore subscribers.
statestore.priority-topic-update-durations	Last (of 1449055467): 0.00100004. Min: 0, max: 4.38216, avg: 0.000286099	The time (sec) spent sending priority topic update RPCs. Includes subscriber-side processing time and network transmission time.
statestore.topic-update-durations	Last (of 96967560): 0. Min: 0, max: 22.4828, avg: 0.000351799	The time (sec) spent sending non-priority topic update RPCs. Includes subscriber-side processing time and network transmission time.
statestore.total-key-size-bytes	5617	The sum of the size of all keys for all topics tracked by the StateStore.
statestore.total-topic-size-bytes	503507	The sum of the size of all keys and all values for all topics tracked by the StateStore.
statestore.total-value-size-bytes	497890	The sum of the size of all values for all topics tracked by the StateStore.
statestore.version	statestored version 3.2.0-cdh6.3.2 RELEASE (build 1bb9836227301b839a32c6bc230e35439d5984ac)	The full version string of the Statestore Server.
subscriber-heartbeat.client-cache.clients-in-use	0	The number of clients in use by the Statestore heartbeat client cache.
subscriber-heartbeat.client-cache.total-clients	4	The total number of clients in the Statestore heartbeat client cache.
subscriber-update-state.client-cache.clients-in-use	0	The number of clients in use by the Statestore update state client cache.
subscriber-update-state.client-cache.total-clients	7	The total number of clients in the Statestore update state client cache.
thread-manager.running-threads	38	The number of running threads in this process.
thread-manager.total-threads-created	39	Threads created over the lifetime of the process.

memory

Name	Value	Description
memory.mapped-bytes	593.40 MB	Total bytes of memory mappings in this process (the virtual memory size).
memory.rss	27.31 MB	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	52.24 MB	Total memory currently used by TCMalloc and buffer pool.

tcmalloc

Name	Value	Description
tcmalloc.bytes-in-use	32.75 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	5.76 MB	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	52.24 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	58.00 MB	Bytes of system memory reserved by TCMalloc.