HBase Home
The HBase - Home dashboards display basic statistics about an HBase cluster.
| Row | Metrics | Description |
|---|---|---|
| REGIONSERVERS / REGIONS | Num RegionServers | Total number of RegionServers in the cluster. |
| Num Dead RegionServers | Total number of RegionServers that are dead in the cluster. | |
| Num Regions | Total number of regions in the cluster. | |
| Avg Num Regions per RegionServer | Average number of regions per RegionServer. | |
| NUM REGIONS/STORES | Num Regions / Stores - Total | Total number of regions and stores (column families) in the cluster. |
| Store File Size / Count - Total | Total data file size and number of store files. | |
| NUM REQUESTS | Num Requests - Total | Total number of requests (read, write and RPCs) in the cluster. |
| Num Request - Breakdown - Total | Total number of get,put,mutate,etc requests in the cluster. | |
| REGIONSERVER MEMORY | RegionServer Memory - Average | Average used, max or committed on-heap and offheap memory for RegionServers. |
| RegionServer Offheap Memory - Average | Average used, free or committed on-heap and offheap memory for RegionServers. | |
| MEMORY - MEMSTORE BLOCKCACHE | Memstore - BlockCache - Average | Average blockcache and memstore sizes for RegionServers. |
| Num Blocks in BlockCache - Total | Total number of (hfile) blocks in the blockcaches across all RegionServers. | |
| BLOCKCACHE | BlockCache Hit/Miss/s Tota | Total number of blockcache hits misses and evictions across all RegionServers. |
| BlockCache Hit Percent - Average | Average blockcache hit percentage across all RegionServers. | |
| OPERATION LATENCIES - GET/MUTATE | Get Latencies - Average | Average min, median, max, 75th, 95th, 99th percentile latencies for Get operation across all RegionServers. |
| Mutate Latencies - Average | Average min, median, max, 75th, 95th, 99th percentile latencies for Mutate operation across all RegionServers. | |
| OPERATION LATENCIES - DELETE/INCREMENT | Delete Latencies - Average | Average min, median, max, 75th, 95th, 99th percentile latencies for Delete operation across all RegionServers. |
| Increment Latencies - Average | Average min, median, max, 75th, 95th, 99th percentile latencies for Increment operation across all RegionServers. | |
| OPERATION LATENCIES - APPEND/REPLAY | Append Latencies - Average | Average min, median, max, 75th, 95th, 99th percentile latencies for Append operation across all RegionServers. |
| Replay Latencies - Average | Average min, median, max, 75th, 95th, 99th percentile latencies for Replay operation across all RegionServers. | |
| REGIONSERVER RPC | RegionServer RPC -Average | Average number of RPCs, active handler threads and open connections across all RegionServers. |
| RegionServer RPC Queues - Average | Average number of calls in different RPC scheduling queues and the size of all requests in the RPC queue across all RegionServers. | |
| REGIONSERVER RPC | RegionServer RPC Throughput - Average | Average sent and received bytes from the RPC across all RegionServers. |