HBase Ganglia Monitoring Configuration

HBase Ganglia monitoring HBase configuration

1. Hadoop-metrics2-hbase.properties

*. Sink. Ganglia. Class=org. Apache. Hadoop. Metrics2. Sink. Ganglia. Gangliasink31 *. Sink. Ganglia. Period=TenHBase. Sink. Ganglia. Period=TenHBase. Sink. Ganglia. Servers=239.2. One.:8649HBase. Class=org. Apache. Hadoop. Metrics2. Sink. Ganglia. Gangliasink31hbase. Period=TenHBase. Servers==239.2. One.:8649Jvm. Class=org. Apache. Hadoop. Metrics2. Sink. Ganglia. Gangliasink31jvm. Period=TenJvm. Servers==239.2. One.:8649Rpc. Class=org. Apache. Hadoop. Metrics2. Sink. Ganglia. Gangliasink31rpc. Period=TenRpc. Servers==239.2. One.:8649

After modifying the configuration and restarting the cluster, you can view the corresponding monitoring information in the ganglia.
Note:
The IP address in the above configuration item is the IP address specified in the gmond.conf file Mcast_join:

/* Feel free toSpecify asMany Udp_send_channels asLike. Gmond used toOnly support has a single channel */udp_send_channel {#bind_hostname = yes # highly recommended, soon toBedefault. # this option tells Gmond to  UseA source address # that resolves toThe machine ' s hostname. Without # This, the metrics may appear toCome from any #Interface  andThe DNS names associated with# those IPs would be used toCreate the Rrds. Mcast_join =239.2. One.Port =8649TTL =1}

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HBase Monitoring Items

Hbase.regionserver.blockCacheCount: Number of in-memory cache blocks (block cache). The number of blocks (block) of Storefiles (Hfiles) in the cache.

Hbase.regionserver.blockCacheEvictedCount: The number of blocks freed from the cache due to exceeding the heap size limit.

Hbase.regionserver.blockCacheFree: The available cache block capacity.

Hbase.regionserver.blockCacheHitCachingRatio: Cache Hit Ratio (0-100) for cached blocks. The read cache hit rate is configured to view the cache (such as cacheblocks=true).

Hbase.regionserver.blockCacheHitCount:StoreFiles (Hfiles) The number of blocks read from the cache.

Hbase.regionserver.blockCacheHitRatio: The hit ratio of the cache block (0-100). Includes all read requests, although the Cacheblocks=false readout is counted as cache loss.

Hbase.regionserver.blockCacheMissCount: The number of blocks that were requested by Storefiles (Hfiles) but not read from the cache.

Hbase.regionserver.blockCacheSize: The capacity of a block cache in memory, specifically the amount of memory occupied by Blockcache.

Hbase.regionserver.compactionQueueSize:Compaction Queue Size, the number of stores in the Regionserver for compaction.

The number of queued region waits for the flush operation in the Hbase.regionserver.flushQueueSize:MemStore.

Hbase.regionserver.fsReadLatency_avg_time: File system delay (MS). The average time from the HDFs read operation.

Hbase.regionserver.memstoreSizeMB: The total Capacity (MB) of all memstore in the current regionserver.

Hbase.regionserver.requests: Total number of Read and write requests. The request is equivalent to a regionserver RPC call, so a get is the equivalent of a request, but even if the caching value of the scan is set to 1000, each "next" call to scan is equivalent to only one request, (for example, not per row). For large data block requests, each hfile corresponds to a request.

The sum of the StoreFile file index sizes in Hbase.regionserver.storefileIndexSizeMB:RegionServer (MB).

Detailed monitoring items can be viewed Http://hbase.apache.org/book.html#rs_metrics

HBase Ganglia Monitoring Configuration