/Apache Hbase
Databases
Apache Hbase Monitoring
Apache HBase is an open-source, non-relational, column-oriented, distributed, and scalable database. HBase consists of a Master and RegionServers. It can be deployed in either stand-alone or clustered mode. The Moein monitoring system is fully capable of monitoring Apache HBase in both configurations. Performance metrics of HMaster and RegionServers, along with their JVM metrics, are collected. The following is a comprehensive list of monitored performance indicators for Apache HBase.
HMaster Metrics
JVM Metrics:
A complete description of JVM-related indicators and parameters is provided in the JVM section.
HMaster Server Metrics:
- HMaster Server Name
- Names Of Live Region Servers
- Names Of Dead Region Servers
- Zookeeper Quorum
- Cluster ID
- Is Active Master
- Host Name
- Number Of Region Merge Plans Executed
- Number Of Region Split Plans Executed
- Master Active Time
- Master Start Time
- Master Initialization Time
- Average Load
- Number Of Region Servers
- Number Of Dead Region Servers
- Cluster Requests
HMaster Balancer Metrics:
- Number Of Cluster Balancer Operations
HMaster AssignmentManager Metrics:
- Number Of Bulk Assignment Operations
- Number Of Regions In Transition
- Number Of Assignment Operations
- Number Of Over Threshold RIT
- Age Of The Longest Region In Transition
HMaster IPC Metrics:
- Number Of Currently Enqueued User Requests
- Number Of Open Connections At The RPC Layer
- Number Of Currently Enqueued Operations Received From Replication
- Number Of Currently Enqueued Priority (Internal HouseKeeping) Requests
- Number Of Client Connection Authentication Failures
RegionServer Metrics
JVM Metrics:
A complete description of JVM-related indicators and parameters is provided in the JVM section.
RegionServer Server Metrics:
- RegionServer Name
- Cluster ID
- RegionServer Host Name
- Number Of Regions
- Number Of Stores
- Number Of HLog Files
- HLog File Size
- Number Of Store Files
- MemStore Size
- Store File Size
- RegionServer Start Time
- RegionServer Total Requests
- Number Of Read Requests
- Number Of Write Requests
- Store File Index Size
- Split Queue Length
- Compaction Queue Length
- Flush Queue Length
- Block Cache Free Size
- Block Cache Count
- Block Cache Size
- Block Cache Hit Count
- Block Cache Miss Count
- Block Cache Hit Ratio
- Flushed Cells Count
- Compacted Cells Count
- Slow Append Count
- Slow Delete Count
- Number Of Reply Operations
- Number Of Slow Put
RegionServer Region Metrics:
- Region Name
- Region Number Of Stores
- Region Number Of Store Files
- Region MemStore Size
- Region Store File Size
- Region Number Of Completed Compactions
- Region Number Of Compacted Data
- Region Number Of Compacted Files
- Region Total Number Of Read Requests
- Region Read Request In A Period
- Region Total Number Of Write Requests
- Region Write Request In A Period
RegionServer WAL Metrics:
- Number Of Roll Requests
- Total Written Bytes
- Number Of Appends
Communication Protocols:
- JMX
Databases
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