Hbase ganglia monitoring configuration and hbaseganglia monitoring

Hbase ganglia monitoring configuration and hbaseganglia monitoring
Hbase ganglia monitoring hbase Configuration

*.sink.ganglia.class=org.apache.hadoop.metrics2.sink.ganglia.GangliaSink31  *.sink.ganglia.period=10  hbase.sink.ganglia.period=10  hbase.sink.ganglia.servers=239.2.11.71:8649hbase.class=org.apache.hadoop.metrics2.sink.ganglia.GangliaSink31hbase.period=10hbase.servers==239.2.11.71:8649jvm.class=org.apache.hadoop.metrics2.sink.ganglia.GangliaSink31jvm.period=10jvm.servers==239.2.11.71:8649rpc.class=org.apache.hadoop.metrics2.sink.ganglia.GangliaSink31rpc.period=10rpc.servers==239.2.11.71:8649

After the configuration is modified, restart the cluster to view the corresponding monitoring information in ganglia.
Note:
The IP address in the preceding configuration item is the IP address specified by mcast_join in the gmond. conf file:

/* Feel free to specify as many udp_send_channels as you like.  Gmond   used to only support having a single channel */udp_send_channel {  #bind_hostname = yes # Highly recommended, soon to be default.                       # This option tells gmond to use a source address                       # that resolves to the machine's hostname.  Without                       # this, the metrics may appear to come from any                       # interface and the DNS names associated with                       # those IPs will be used to create the RRDs.  mcast_join = 239.2.11.71  port = 8649  ttl = 1}

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Hbase metric item

Hbase. regionserver. blockCacheCount: Number of cache blocks in the memory. The number of StoreFiles (HFiles) blocks in the cache.

Hbase. regionserver. blockCacheEvictedCount: The number of blocks released from the cache because the heap size limit is exceeded.

Hbase. regionserver. blockCacheFree: available cache block capacity.

Hbase. regionserver. blockCacheHitCachingRatio: cache block hit rate (0-100 ). The read cache hit rate is configured to view the cache (for example, cacheblocks = true ).

Hbase. regionserver. blockCacheHitCount: Number of chunks read by StoreFiles (HFiles) from the cache.

Hbase. regionserver. blockCacheHitRatio: cache block hit rate (0-100). This includes all read requests, although cacheBlocks = false reads are counted as cache loss.

Hbase. regionserver. blockCacheMissCount: Number of chunks requested by StoreFiles but not read from the cache.

Hbase. regionserver. blockCacheSize: The Block cache capacity in the memory, especially the memory capacity occupied by blockcache.

Hbase. regionserver. compactionQueueSize: the size of the Compaction queue, which is used for the number of stores in the RegionServer of compaction.

Hbase. regionserver. flushQueueSize: Number of region queues waiting for the flush operation in MemStore.

Hbase. regionserver. fsReadLatency_avg_time: File System latency (MS ). Average read time from HDFS.

Hbase. regionserver. memstoreSizeMB: total capacity (MB) of all memstores in the current RegionServer ).

Hbase. regionserver. requests: Total number of Read and Write requests. A request is equivalent to a RegionServer RPC call, so a Get request is equivalent to a request, but even if the caching value of Scan is set to 1000, each "Next" call to SCAN is equivalent to only one request (for example, non-rows ). For big data block requests, each HFile corresponds to one request.

Hbase. regionserver. storefileIndexSizeMB: total size of the index of the StoreFile in RegionServer (MB ).

Detailed metrics view http://hbase.apache.org/book.html#rs_metrics