Apache HBase is an open source, non-relational, column-oriented, distributed, scalable database. HBase consists of Master and RegionServers. HBase can be deployed either in stand-alone or clustered operational mode. Moein monitoring system is capable of monitoring of Apache HBase in both aforementioned modes. Performance metrics of Hmaster and Regionservers, and their JVM metrics are collected. The following is a list of the performance metrics of Apache HBase:

Master Metrics:

JVM Metrics:

A complete description of the JVM-related indicators and parameters is provided in the JVM object.

HMaster Metrics:

HMaster Server Metrics:

1. HMaster Server Name
2. Names Of Live Region Servers
3. Names Of Dead Region Servers
4. Zookeeper Quorum
5. Cluster ID
6. Is Active Master
7. Host Name
8. Number Of Region Merge Plans Executed
9. Number Of Region Split Plans Executed
10. Master Active Time
11. Master Start Time
12. Master Initialization Time
13. Average Load
14. Number Of Region Servers
15. Number Of Dead Region Servers
16. Cluster Requests

HMaster Balancer ‌Metrics:

1. Number Of Cluster Balancer Operations

HMaster AssignmentManager Metrics:

1. Number Of Bulk Assignment Operations
2. Number Of Regions In Transition
3. Number Of Assignment Operations
4. Number Of Over Threshold RIT
5. Age Of The Longest Region In Transition

HMaster IPC HMaster:

1. Number Of Currently Enqueued User Requests
2. Number Of Open Connections At The RPC Layer
3. Number Of Currently Enqueued Operations Received From Replication
4. Number Of Currently Enqueued Priority (Internal HouseKeeping) Requests
5. Number Of Client Connection Authentication Failures

RegionServer Metrics:

JVM Metrics:

A complete description of the JVM-related indicators and parameters is provided in the JVM object.

RegionServer Server Metrics:

1. Region Server Name
2. Cluster ID
3. Region Server Host Name
4. Number Of Regions
5. Number Of Stores
6. Number Of Hlog File
7. HLog File Size
8. Number Of Store Files
9. Memstore Size
10. Store File Size
11. Region Server Start Time
12. Region Server Total Requests
13. Number Of Read Requests
14. Number Of Write Requests
15. Region Server Total Requests
16. Number Of Read Requests
17. Number Of Write Requests
18. Store File Index Size
19. Split Queue Length
20. Compaction Queue Length
21. Flush Queue Length
22. Block Cache Free Size
23. Block Cache Count
24. Block Cache Size
25. Block Cache Hit Count
26. Block Cache Miss Count
27. Block Cache Hit Ratio
28. Flushed Cells Count
29. Compacted Cells Count
30. Slow Append Count
31. Slow Delete Count
32. Number Of Reply Operations
33. Number Of Slow Put

RegionServer 's Region Metrics:

1. Region Name
2. Region Number Of Stores
3. Region Number Of Store Files
4. Region MemStore Size
5. Region Store File size
6. Region Number Of Completed Compactions
7. Region Number Of Compacted Data
8. Region Number Of Compacted Files 
9. Region Total Number Of Read Requests
10. Region Read Request In A Period
11. Region Total Number Of Write Request
12. Region Write Request In A Period

RegionServer WAL Metrics:

1. Number Of Roll Requests
2. Total Written Bytes
3. Number Of Appends

Communication Protocols:

• JMX