/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.regionserver;
import org.apache.hadoop.hbase.metrics.BaseSource;
import org.apache.hadoop.hbase.metrics.JvmPauseMonitorSource;
/**
* Interface for classes that expose metrics about the regionserver.
*/
public interface MetricsRegionServerSource extends BaseSource, JvmPauseMonitorSource {
/**
* The name of the metrics
*/
String METRICS_NAME = "Server";
/**
* The name of the metrics context that metrics will be under.
*/
String METRICS_CONTEXT = "regionserver";
/**
* Description
*/
String METRICS_DESCRIPTION = "Metrics about HBase RegionServer";
/**
* The name of the metrics context that metrics will be under in jmx
*/
String METRICS_JMX_CONTEXT = "RegionServer,sub=" + METRICS_NAME;
/**
* Update the Put time histogram
*
* @param t time it took
*/
void updatePut(long t);
/**
* Update the Delete time histogram
*
* @param t time it took
*/
void updateDelete(long t);
/**
* Update the Get time histogram .
*
* @param t time it took
*/
void updateGet(long t);
/**
* Update the Increment time histogram.
*
* @param t time it took
*/
void updateIncrement(long t);
/**
* Update the Append time histogram.
*
* @param t time it took
*/
void updateAppend(long t);
/**
* Update the Replay time histogram.
*
* @param t time it took
*/
void updateReplay(long t);
/**
* Update the scan size.
*
* @param scanSize size of the scan
*/
void updateScanSize(long scanSize);
/**
* Update the scan time.
* */
void updateScanTime(long t);
/**
* Increment the number of slow Puts that have happened.
*/
void incrSlowPut();
/**
* Increment the number of slow Deletes that have happened.
*/
void incrSlowDelete();
/**
* Increment the number of slow Gets that have happened.
*/
void incrSlowGet();
/**
* Increment the number of slow Increments that have happened.
*/
void incrSlowIncrement();
/**
* Increment the number of slow Appends that have happened.
*/
void incrSlowAppend();
/**
* Update the split transaction time histogram
* @param t time it took, in milliseconds
*/
void updateSplitTime(long t);
/**
* Increment number of a requested splits
*/
void incrSplitRequest();
/**
* Increment number of successful splits
*/
void incrSplitSuccess();
/**
* Update the flush time histogram
* @param t time it took, in milliseconds
*/
void updateFlushTime(long t);
/**
* Update the flush memstore size histogram
* @param bytes the number of bytes in the memstore
*/
void updateFlushMemstoreSize(long bytes);
/**
* Update the flush output file size histogram
* @param bytes the number of bytes in the output file
*/
void updateFlushOutputSize(long bytes);
/**
* Update the compaction time histogram, both major and minor
* @param isMajor whether compaction is a major compaction
* @param t time it took, in milliseconds
*/
void updateCompactionTime(boolean isMajor, long t);
/**
* Update the compaction input number of files histogram
* @param isMajor whether compaction is a major compaction
* @param c number of files
*/
void updateCompactionInputFileCount(boolean isMajor, long c);
/**
* Update the compaction total input file size histogram
* @param isMajor whether compaction is a major compaction
* @param bytes the number of bytes of the compaction input file
*/
void updateCompactionInputSize(boolean isMajor, long bytes);
/**
* Update the compaction output number of files histogram
* @param isMajor whether compaction is a major compaction
* @param c number of files
*/
void updateCompactionOutputFileCount(boolean isMajor, long c);
/**
* Update the compaction total output file size
* @param isMajor whether compaction is a major compaction
* @param bytes the number of bytes of the compaction input file
*/
void updateCompactionOutputSize(boolean isMajor, long bytes);
// Strings used for exporting to metrics system.
String REGION_COUNT = "regionCount";
String REGION_COUNT_DESC = "Number of regions";
String STORE_COUNT = "storeCount";
String STORE_COUNT_DESC = "Number of Stores";
String WALFILE_COUNT = "hlogFileCount";
String WALFILE_COUNT_DESC = "Number of WAL Files";
String WALFILE_SIZE = "hlogFileSize";
String WALFILE_SIZE_DESC = "Size of all WAL Files";
String STOREFILE_COUNT = "storeFileCount";
String STOREFILE_COUNT_DESC = "Number of Store Files";
String MEMSTORE_SIZE = "memStoreSize";
String MEMSTORE_SIZE_DESC = "Size of the memstore";
String STOREFILE_SIZE = "storeFileSize";
String MAX_STORE_FILE_AGE = "maxStoreFileAge";
String MIN_STORE_FILE_AGE = "minStoreFileAge";
String AVG_STORE_FILE_AGE = "avgStoreFileAge";
String NUM_REFERENCE_FILES = "numReferenceFiles";
String MAX_STORE_FILE_AGE_DESC = "Max age of store files hosted on this region server";
String MIN_STORE_FILE_AGE_DESC = "Min age of store files hosted on this region server";
String AVG_STORE_FILE_AGE_DESC = "Average age of store files hosted on this region server";
String NUM_REFERENCE_FILES_DESC = "Number of reference file on this region server";
String STOREFILE_SIZE_DESC = "Size of storefiles being served.";
String TOTAL_REQUEST_COUNT = "totalRequestCount";
String TOTAL_REQUEST_COUNT_DESC =
"Total number of requests this RegionServer has answered.";
String READ_REQUEST_COUNT = "readRequestCount";
String READ_REQUEST_COUNT_DESC =
"Number of read requests this region server has answered.";
String FILTERED_READ_REQUEST_COUNT = "filteredReadRequestCount";
String FILTERED_READ_REQUEST_COUNT_DESC =
"Number of filtered read requests this region server has answered.";
String WRITE_REQUEST_COUNT = "writeRequestCount";
String WRITE_REQUEST_COUNT_DESC =
"Number of mutation requests this region server has answered.";
String CHECK_MUTATE_FAILED_COUNT = "checkMutateFailedCount";
String CHECK_MUTATE_FAILED_COUNT_DESC =
"Number of Check and Mutate calls that failed the checks.";
String CHECK_MUTATE_PASSED_COUNT = "checkMutatePassedCount";
String CHECK_MUTATE_PASSED_COUNT_DESC =
"Number of Check and Mutate calls that passed the checks.";
String STOREFILE_INDEX_SIZE = "storeFileIndexSize";
String STOREFILE_INDEX_SIZE_DESC = "Size of indexes in storefiles on disk.";
String STATIC_INDEX_SIZE = "staticIndexSize";
String STATIC_INDEX_SIZE_DESC = "Uncompressed size of the static indexes.";
String STATIC_BLOOM_SIZE = "staticBloomSize";
String STATIC_BLOOM_SIZE_DESC =
"Uncompressed size of the static bloom filters.";
String NUMBER_OF_MUTATIONS_WITHOUT_WAL = "mutationsWithoutWALCount";
String NUMBER_OF_MUTATIONS_WITHOUT_WAL_DESC =
"Number of mutations that have been sent by clients with the write ahead logging turned off.";
String DATA_SIZE_WITHOUT_WAL = "mutationsWithoutWALSize";
String DATA_SIZE_WITHOUT_WAL_DESC =
"Size of data that has been sent by clients with the write ahead logging turned off.";
String PERCENT_FILES_LOCAL = "percentFilesLocal";
String PERCENT_FILES_LOCAL_DESC =
"The percent of HFiles that are stored on the local hdfs data node.";
String PERCENT_FILES_LOCAL_SECONDARY_REGIONS = "percentFilesLocalSecondaryRegions";
String PERCENT_FILES_LOCAL_SECONDARY_REGIONS_DESC =
"The percent of HFiles used by secondary regions that are stored on the local hdfs data node.";
String SPLIT_QUEUE_LENGTH = "splitQueueLength";
String SPLIT_QUEUE_LENGTH_DESC = "Length of the queue for splits.";
String COMPACTION_QUEUE_LENGTH = "compactionQueueLength";
String LARGE_COMPACTION_QUEUE_LENGTH = "largeCompactionQueueLength";
String SMALL_COMPACTION_QUEUE_LENGTH = "smallCompactionQueueLength";
String COMPACTION_QUEUE_LENGTH_DESC = "Length of the queue for compactions.";
String LARGE_COMPACTION_QUEUE_LENGTH_DESC = "Length of the queue for compactions with input size "
+ "larger than throttle threshold (2.5GB by default)";
String SMALL_COMPACTION_QUEUE_LENGTH_DESC = "Length of the queue for compactions with input size "
+ "smaller than throttle threshold (2.5GB by default)";
String FLUSH_QUEUE_LENGTH = "flushQueueLength";
String FLUSH_QUEUE_LENGTH_DESC = "Length of the queue for region flushes";
String BLOCK_CACHE_FREE_SIZE = "blockCacheFreeSize";
String BLOCK_CACHE_FREE_DESC =
"Size of the block cache that is not occupied.";
String BLOCK_CACHE_COUNT = "blockCacheCount";
String BLOCK_CACHE_COUNT_DESC = "Number of block in the block cache.";
String BLOCK_CACHE_SIZE = "blockCacheSize";
String BLOCK_CACHE_SIZE_DESC = "Size of the block cache.";
String BLOCK_CACHE_HIT_COUNT = "blockCacheHitCount";
String BLOCK_CACHE_HIT_COUNT_DESC = "Count of the hit on the block cache.";
String BLOCK_CACHE_PRIMARY_HIT_COUNT = "blockCacheHitCountPrimary";
String BLOCK_CACHE_PRIMARY_HIT_COUNT_DESC = "Count of hit on primary replica in the block cache.";
String BLOCK_CACHE_MISS_COUNT = "blockCacheMissCount";
String BLOCK_COUNT_MISS_COUNT_DESC =
"Number of requests for a block that missed the block cache.";
String BLOCK_CACHE_PRIMARY_MISS_COUNT = "blockCacheMissCountPrimary";
String BLOCK_COUNT_PRIMARY_MISS_COUNT_DESC =
"Number of requests for a block of primary replica that missed the block cache.";
String BLOCK_CACHE_EVICTION_COUNT = "blockCacheEvictionCount";
String BLOCK_CACHE_EVICTION_COUNT_DESC =
"Count of the number of blocks evicted from the block cache."
+ "(Not including blocks evicted because of HFile removal)";
String BLOCK_CACHE_PRIMARY_EVICTION_COUNT = "blockCacheEvictionCountPrimary";
String BLOCK_CACHE_PRIMARY_EVICTION_COUNT_DESC =
"Count of the number of blocks evicted from primary replica in the block cache.";
String BLOCK_CACHE_HIT_PERCENT = "blockCacheCountHitPercent";
String BLOCK_CACHE_HIT_PERCENT_DESC =
"Percent of block cache requests that are hits";
String BLOCK_CACHE_EXPRESS_HIT_PERCENT = "blockCacheExpressHitPercent";
String BLOCK_CACHE_EXPRESS_HIT_PERCENT_DESC =
"The percent of the time that requests with the cache turned on hit the cache.";
String BLOCK_CACHE_FAILED_INSERTION_COUNT = "blockCacheFailedInsertionCount";
String BLOCK_CACHE_FAILED_INSERTION_COUNT_DESC = "Number of times that a block cache " +
"insertion failed. Usually due to size restrictions.";
String BLOCK_CACHE_DATA_MISS_COUNT = "blockCacheDataMissCount";
String BLOCK_CACHE_ENCODED_DATA_MISS_COUNT = "blockCacheEncodedDataMissCount";
String BLOCK_CACHE_LEAF_INDEX_MISS_COUNT = "blockCacheLeafIndexMissCount";
String BLOCK_CACHE_BLOOM_CHUNK_MISS_COUNT = "blockCacheBloomChunkMissCount";
String BLOCK_CACHE_META_MISS_COUNT = "blockCacheMetaMissCount";
String BLOCK_CACHE_ROOT_INDEX_MISS_COUNT = "blockCacheRootIndexMissCount";
String BLOCK_CACHE_INTERMEDIATE_INDEX_MISS_COUNT = "blockCacheIntermediateIndexMissCount";
String BLOCK_CACHE_FILE_INFO_MISS_COUNT = "blockCacheFileInfoMissCount";
String BLOCK_CACHE_GENERAL_BLOOM_META_MISS_COUNT = "blockCacheGeneralBloomMetaMissCount";
String BLOCK_CACHE_DELETE_FAMILY_BLOOM_MISS_COUNT = "blockCacheDeleteFamilyBloomMissCount";
String BLOCK_CACHE_TRAILER_MISS_COUNT = "blockCacheTrailerMissCount";
String BLOCK_CACHE_DATA_HIT_COUNT = "blockCacheDataHitCount";
String BLOCK_CACHE_ENCODED_DATA_HIT_COUNT = "blockCacheEncodedDataHitCount";
String BLOCK_CACHE_LEAF_INDEX_HIT_COUNT = "blockCacheLeafIndexHitCount";
String BLOCK_CACHE_BLOOM_CHUNK_HIT_COUNT = "blockCacheBloomChunkHitCount";
String BLOCK_CACHE_META_HIT_COUNT = "blockCacheMetaHitCount";
String BLOCK_CACHE_ROOT_INDEX_HIT_COUNT = "blockCacheRootIndexHitCount";
String BLOCK_CACHE_INTERMEDIATE_INDEX_HIT_COUNT = "blockCacheIntermediateIndexHitCount";
String BLOCK_CACHE_FILE_INFO_HIT_COUNT = "blockCacheFileInfoHitCount";
String BLOCK_CACHE_GENERAL_BLOOM_META_HIT_COUNT = "blockCacheGeneralBloomMetaHitCount";
String BLOCK_CACHE_DELETE_FAMILY_BLOOM_HIT_COUNT = "blockCacheDeleteFamilyBloomHitCount";
String BLOCK_CACHE_TRAILER_HIT_COUNT = "blockCacheTrailerHitCount";
String RS_START_TIME_NAME = "regionServerStartTime";
String ZOOKEEPER_QUORUM_NAME = "zookeeperQuorum";
String SERVER_NAME_NAME = "serverName";
String CLUSTER_ID_NAME = "clusterId";
String RS_START_TIME_DESC = "RegionServer Start Time";
String ZOOKEEPER_QUORUM_DESC = "ZooKeeper Quorum";
String SERVER_NAME_DESC = "Server Name";
String CLUSTER_ID_DESC = "Cluster Id";
String UPDATES_BLOCKED_TIME = "updatesBlockedTime";
String UPDATES_BLOCKED_DESC =
"Number of MS updates have been blocked so that the memstore can be flushed.";
String DELETE_KEY = "delete";
String GET_SIZE_KEY = "getSize";
String GET_KEY = "get";
String INCREMENT_KEY = "increment";
String MUTATE_KEY = "mutate";
String APPEND_KEY = "append";
String REPLAY_KEY = "replay";
String SCAN_KEY = "scan";
String SCAN_SIZE_KEY = "scanSize";
String SCAN_TIME_KEY = "scanTime";
String SLOW_MUTATE_KEY = "slowPutCount";
String SLOW_GET_KEY = "slowGetCount";
String SLOW_DELETE_KEY = "slowDeleteCount";
String SLOW_INCREMENT_KEY = "slowIncrementCount";
String SLOW_APPEND_KEY = "slowAppendCount";
String SLOW_MUTATE_DESC =
"The number of Multis that took over 1000ms to complete";
String SLOW_DELETE_DESC =
"The number of Deletes that took over 1000ms to complete";
String SLOW_GET_DESC = "The number of Gets that took over 1000ms to complete";
String SLOW_INCREMENT_DESC =
"The number of Increments that took over 1000ms to complete";
String SLOW_APPEND_DESC =
"The number of Appends that took over 1000ms to complete";
String FLUSHED_CELLS = "flushedCellsCount";
String FLUSHED_CELLS_DESC = "The number of cells flushed to disk";
String FLUSHED_CELLS_SIZE = "flushedCellsSize";
String FLUSHED_CELLS_SIZE_DESC = "The total amount of data flushed to disk, in bytes";
String COMPACTED_CELLS = "compactedCellsCount";
String COMPACTED_CELLS_DESC = "The number of cells processed during minor compactions";
String COMPACTED_CELLS_SIZE = "compactedCellsSize";
String COMPACTED_CELLS_SIZE_DESC =
"The total amount of data processed during minor compactions, in bytes";
String MAJOR_COMPACTED_CELLS = "majorCompactedCellsCount";
String MAJOR_COMPACTED_CELLS_DESC =
"The number of cells processed during major compactions";
String MAJOR_COMPACTED_CELLS_SIZE = "majorCompactedCellsSize";
String MAJOR_COMPACTED_CELLS_SIZE_DESC =
"The total amount of data processed during major compactions, in bytes";
String CELLS_COUNT_COMPACTED_TO_MOB = "cellsCountCompactedToMob";
String CELLS_COUNT_COMPACTED_TO_MOB_DESC =
"The number of cells moved to mob during compaction";
String CELLS_COUNT_COMPACTED_FROM_MOB = "cellsCountCompactedFromMob";
String CELLS_COUNT_COMPACTED_FROM_MOB_DESC =
"The number of cells moved from mob during compaction";
String CELLS_SIZE_COMPACTED_TO_MOB = "cellsSizeCompactedToMob";
String CELLS_SIZE_COMPACTED_TO_MOB_DESC =
"The total amount of cells move to mob during compaction, in bytes";
String CELLS_SIZE_COMPACTED_FROM_MOB = "cellsSizeCompactedFromMob";
String CELLS_SIZE_COMPACTED_FROM_MOB_DESC =
"The total amount of cells move from mob during compaction, in bytes";
String MOB_FLUSH_COUNT = "mobFlushCount";
String MOB_FLUSH_COUNT_DESC = "The number of the flushes in mob-enabled stores";
String MOB_FLUSHED_CELLS_COUNT = "mobFlushedCellsCount";
String MOB_FLUSHED_CELLS_COUNT_DESC = "The number of mob cells flushed to disk";
String MOB_FLUSHED_CELLS_SIZE = "mobFlushedCellsSize";
String MOB_FLUSHED_CELLS_SIZE_DESC = "The total amount of mob cells flushed to disk, in bytes";
String MOB_SCAN_CELLS_COUNT = "mobScanCellsCount";
String MOB_SCAN_CELLS_COUNT_DESC = "The number of scanned mob cells";
String MOB_SCAN_CELLS_SIZE = "mobScanCellsSize";
String MOB_SCAN_CELLS_SIZE_DESC = "The total amount of scanned mob cells, in bytes";
String MOB_FILE_CACHE_ACCESS_COUNT = "mobFileCacheAccessCount";
String MOB_FILE_CACHE_ACCESS_COUNT_DESC = "The count of accesses to the mob file cache";
String MOB_FILE_CACHE_MISS_COUNT = "mobFileCacheMissCount";
String MOB_FILE_CACHE_MISS_COUNT_DESC = "The count of misses to the mob file cache";
String MOB_FILE_CACHE_HIT_PERCENT = "mobFileCacheHitPercent";
String MOB_FILE_CACHE_HIT_PERCENT_DESC = "The hit percent to the mob file cache";
String MOB_FILE_CACHE_EVICTED_COUNT = "mobFileCacheEvictedCount";
String MOB_FILE_CACHE_EVICTED_COUNT_DESC = "The number of items evicted from the mob file cache";
String MOB_FILE_CACHE_COUNT = "mobFileCacheCount";
String MOB_FILE_CACHE_COUNT_DESC = "The count of cached mob files";
String HEDGED_READS = "hedgedReads";
String HEDGED_READS_DESC = "The number of times we started a hedged read";
String HEDGED_READ_WINS = "hedgedReadWins";
String HEDGED_READ_WINS_DESC =
"The number of times we started a hedged read and a hedged read won";
String BLOCKED_REQUESTS_COUNT = "blockedRequestCount";
String BLOCKED_REQUESTS_COUNT_DESC = "The number of blocked requests because of memstore size is "
+ "larger than blockingMemStoreSize";
String SPLIT_KEY = "splitTime";
String SPLIT_REQUEST_KEY = "splitRequestCount";
String SPLIT_REQUEST_DESC = "Number of splits requested";
String SPLIT_SUCCESS_KEY = "splitSuccessCount";
String SPLIT_SUCCESS_DESC = "Number of successfully executed splits";
String FLUSH_TIME = "flushTime";
String FLUSH_TIME_DESC = "Histogram for the time in millis for memstore flush";
String FLUSH_MEMSTORE_SIZE = "flushMemstoreSize";
String FLUSH_MEMSTORE_SIZE_DESC = "Histogram for number of bytes in the memstore for a flush";
String FLUSH_OUTPUT_SIZE = "flushOutputSize";
String FLUSH_OUTPUT_SIZE_DESC = "Histogram for number of bytes in the resulting file for a flush";
String FLUSHED_OUTPUT_BYTES = "flushedOutputBytes";
String FLUSHED_OUTPUT_BYTES_DESC = "Total number of bytes written from flush";
String FLUSHED_MEMSTORE_BYTES = "flushedMemstoreBytes";
String FLUSHED_MEMSTORE_BYTES_DESC = "Total number of bytes of cells in memstore from flush";
String COMPACTION_TIME = "compactionTime";
String COMPACTION_TIME_DESC
= "Histogram for the time in millis for compaction, both major and minor";
String COMPACTION_INPUT_FILE_COUNT = "compactionInputFileCount";
String COMPACTION_INPUT_FILE_COUNT_DESC
= "Histogram for the compaction input number of files, both major and minor";
String COMPACTION_INPUT_SIZE = "compactionInputSize";
String COMPACTION_INPUT_SIZE_DESC
= "Histogram for the compaction total input file sizes, both major and minor";
String COMPACTION_OUTPUT_FILE_COUNT = "compactionOutputFileCount";
String COMPACTION_OUTPUT_FILE_COUNT_DESC
= "Histogram for the compaction output number of files, both major and minor";
String COMPACTION_OUTPUT_SIZE = "compactionOutputSize";
String COMPACTION_OUTPUT_SIZE_DESC
= "Histogram for the compaction total output file sizes, both major and minor";
String COMPACTED_INPUT_BYTES = "compactedInputBytes";
String COMPACTED_INPUT_BYTES_DESC
= "Total number of bytes that is read for compaction, both major and minor";
String COMPACTED_OUTPUT_BYTES = "compactedOutputBytes";
String COMPACTED_OUTPUT_BYTES_DESC
= "Total number of bytes that is output from compaction, both major and minor";
String MAJOR_COMPACTION_TIME = "majorCompactionTime";
String MAJOR_COMPACTION_TIME_DESC
= "Histogram for the time in millis for compaction, major only";
String MAJOR_COMPACTION_INPUT_FILE_COUNT = "majorCompactionInputFileCount";
String MAJOR_COMPACTION_INPUT_FILE_COUNT_DESC
= "Histogram for the compaction input number of files, major only";
String MAJOR_COMPACTION_INPUT_SIZE = "majorCompactionInputSize";
String MAJOR_COMPACTION_INPUT_SIZE_DESC
= "Histogram for the compaction total input file sizes, major only";
String MAJOR_COMPACTION_OUTPUT_FILE_COUNT = "majorCompactionOutputFileCount";
String MAJOR_COMPACTION_OUTPUT_FILE_COUNT_DESC
= "Histogram for the compaction output number of files, major only";
String MAJOR_COMPACTION_OUTPUT_SIZE = "majorCompactionOutputSize";
String MAJOR_COMPACTION_OUTPUT_SIZE_DESC
= "Histogram for the compaction total output file sizes, major only";
String MAJOR_COMPACTED_INPUT_BYTES = "majorCompactedInputBytes";
String MAJOR_COMPACTED_INPUT_BYTES_DESC
= "Total number of bytes that is read for compaction, major only";
String MAJOR_COMPACTED_OUTPUT_BYTES = "majorCompactedOutputBytes";
String MAJOR_COMPACTED_OUTPUT_BYTES_DESC
= "Total number of bytes that is output from compaction, major only";
String RPC_GET_REQUEST_COUNT = "rpcGetRequestCount";
String RPC_GET_REQUEST_COUNT_DESC = "Number of rpc get requests this region server has answered.";
String RPC_SCAN_REQUEST_COUNT = "rpcScanRequestCount";
String RPC_SCAN_REQUEST_COUNT_DESC =
"Number of rpc scan requests this region server has answered.";
String RPC_MULTI_REQUEST_COUNT = "rpcMultiRequestCount";
String RPC_MULTI_REQUEST_COUNT_DESC =
"Number of rpc multi requests this region server has answered.";
String RPC_MUTATE_REQUEST_COUNT = "rpcMutateRequestCount";
String RPC_MUTATE_REQUEST_COUNT_DESC =
"Number of rpc mutation requests this region server has answered.";
String AVERAGE_REGION_SIZE = "averageRegionSize";
String AVERAGE_REGION_SIZE_DESC =
"Average region size over the region server including memstore and storefile sizes.";
}