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DocumentationElastic MapReduce EMR on CVM Operation GuideMonitoring and AlarmsMonitoring MetricsZooKeeper Monitoring Metrics
ZooKeeper Monitoring Metrics
Last updated: 2023-12-27 14:48:59
ZooKeeper
Title | Metric | Unit | Description |
GC count | YGC | - | Young GC count |
| FGC | - | Full GC count |
GC time | FGCT | s | Full GC time |
| GCT | s | Garbage collection time |
| YGCT | s | Young GC time |
Memory zone proportion | S0 | % | Percentage of used Survivor 0 memory |
| E | % | Percentage of used Eden memory |
| CCS | % | Percentage of used compressed class space memory |
| S1 | % | Percentage of used Survivor 1 memory |
| O | % | Percentage of used Old memory |
| M | % | Percentage of used Metaspace memory |
JVM memory | MemNonHeapUsedM | MB | Size of NonHeapMemory currently used by JVM |
| MemNonHeapCommittedM | MB | Size of NonHeapMemory currently committed by JVM |
| MemHeapUsedM | MB | Size of HeapMemory currently used by JVM |
| MemHeapCommittedM | MB | Size of HeapMemory currently committed by JVM |
| MemHeapMaxM | MB | Size of HeapMemory configured by JVM |
| MemHeapInitM | MB | Size of initial JVM HeapMem |
| MemNonHeapInitM | MB | Size of initial JVM NonHeapMem |
CPU utilization | ProcessCpuLoad | % | CPU utilization |
File descriptors | zk_max_file_descriptor_count | - | Maximum number of file descriptors |
| zk_open_file_descriptor_count | - | Number of opened file descriptors |
Cumulative CPU usage time | ProcessCpuTime | ms | Cumulative CPU usage time |
Process execution duration | Uptime | s | Process execution duration |
Worker threads | DaemonThreadCount | - | Number of daemon threads |
| ThreadCount | - | Total number of threads |
Connections | zk_num_alive_connections | - | Number of current connections |
Latency | zk_avg_latency | ms | Average ZooKeeper processing latency |
| zk_max_latency | ms | Maximum ZooKeeper processing latency |
| zk_min_latency | ms | Minimum ZooKeeper processing latency |
Zondes | zk_watch_count | - | Number of ZooKeeper watches |
| zk_znode_count | - | Number of ZooKeeper znodes |
| zk_ephemerals_count | - | Number of ephemeral ZooKeeper nodes |
Data size | zk_approximate_data_size | Byte | Volume of data stored in ZooKeeper |
Node status | zk_server_state | 1: Master. 0: Slave. 2: Standalone | ZooKeeper node type |
Received/Sent packets | zk_packets_received | count/s | ZooKeeper packet receiving rate |
| zk_packets_sent | count/s | ZooKeeper packet sending rate |
Queuing requests | zk_outstanding_requests | - | Number of queuing requests |
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