1 /** 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 package org.apache.hadoop.hbase.regionserver; 20 21 /** 22 * This is the interface that will expose RegionServer information to hadoop1/hadoop2 23 * implementations of the MetricsRegionServerSource. 24 */ 25 public interface MetricsRegionServerWrapper { 26 27 /** 28 * Get ServerName 29 */ 30 String getServerName(); 31 32 /** 33 * Get the Cluster ID 34 * 35 * @return Cluster ID 36 */ 37 String getClusterId(); 38 39 /** 40 * Get the Zookeeper Quorum Info 41 * 42 * @return Zookeeper Quorum Info 43 */ 44 String getZookeeperQuorum(); 45 46 /** 47 * Get the co-processors 48 * 49 * @return Co-processors 50 */ 51 String getCoprocessors(); 52 53 /** 54 * Get HRegionServer start time 55 * 56 * @return Start time of RegionServer in milliseconds 57 */ 58 long getStartCode(); 59 60 /** 61 * The number of online regions 62 */ 63 long getNumOnlineRegions(); 64 65 /** 66 * Get the number of stores hosted on this region server. 67 */ 68 long getNumStores(); 69 70 /** 71 * Get the number of HLog files of this region server. 72 */ 73 public long getNumHLogFiles(); 74 75 /** 76 * Get the size of HLog files of this region server. 77 */ 78 public long getHLogFileSize(); 79 80 /** 81 * Get the number of store files hosted on this region server. 82 */ 83 long getNumStoreFiles(); 84 85 /** 86 * Get the size of the memstore on this region server. 87 */ 88 long getMemstoreSize(); 89 90 /** 91 * Get the total size of the store files this region server is serving from. 92 */ 93 long getStoreFileSize(); 94 95 /** 96 * Get the number of requests per second. 97 */ 98 double getRequestsPerSecond(); 99 100 /** 101 * Get the total number of requests per second. 102 */ 103 long getTotalRequestCount(); 104 105 /** 106 * Get the number of read requests to regions hosted on this region server. 107 */ 108 long getReadRequestsCount(); 109 110 /** 111 * Get the number of write requests to regions hosted on this region server. 112 */ 113 long getWriteRequestsCount(); 114 115 /** 116 * Get the number of CAS operations that failed. 117 */ 118 long getCheckAndMutateChecksFailed(); 119 120 /** 121 * Get the number of CAS operations that passed. 122 */ 123 long getCheckAndMutateChecksPassed(); 124 125 /** 126 * Get the Size (in bytes) of indexes in storefiles on disk. 127 */ 128 long getStoreFileIndexSize(); 129 130 /** 131 * Get the size (in bytes) of of the static indexes including the roots. 132 */ 133 long getTotalStaticIndexSize(); 134 135 /** 136 * Get the size (in bytes) of the static bloom filters. 137 */ 138 long getTotalStaticBloomSize(); 139 140 /** 141 * Number of mutations received with WAL explicitly turned off. 142 */ 143 long getNumMutationsWithoutWAL(); 144 145 /** 146 * Ammount of data in the memstore but not in the WAL because mutations explicitly had their 147 * WAL turned off. 148 */ 149 long getDataInMemoryWithoutWAL(); 150 151 /** 152 * Get the percent of HFiles' that are local. 153 */ 154 int getPercentFileLocal(); 155 156 /** 157 * Get the size of the split queue 158 */ 159 int getSplitQueueSize(); 160 161 /** 162 * Get the size of the compaction queue 163 */ 164 int getCompactionQueueSize(); 165 166 int getSmallCompactionQueueSize(); 167 168 int getLargeCompactionQueueSize(); 169 170 /** 171 * Get the size of the flush queue. 172 */ 173 int getFlushQueueSize(); 174 175 /** 176 * Get the size (in bytes) of the block cache that is free. 177 */ 178 long getBlockCacheFreeSize(); 179 180 /** 181 * Get the number of items in the block cache. 182 */ 183 long getBlockCacheCount(); 184 185 /** 186 * Get the total size (in bytes) of the block cache. 187 */ 188 long getBlockCacheSize(); 189 190 /** 191 * Get the count of hits to the block cache 192 */ 193 long getBlockCacheHitCount(); 194 195 /** 196 * Get the count of misses to the block cache. 197 */ 198 long getBlockCacheMissCount(); 199 200 /** 201 * Get the number of items evicted from the block cache. 202 */ 203 long getBlockCacheEvictedCount(); 204 205 /** 206 * Get the percent of all requests that hit the block cache. 207 */ 208 int getBlockCacheHitPercent(); 209 210 /** 211 * Get the percent of requests with the block cache turned on that hit the block cache. 212 */ 213 int getBlockCacheHitCachingPercent(); 214 215 /** 216 * Force a re-computation of the metrics. 217 */ 218 void forceRecompute(); 219 220 /** 221 * Get the amount of time that updates were blocked. 222 */ 223 long getUpdatesBlockedTime(); 224 225 /** 226 * Get the number of cells flushed to disk. 227 */ 228 long getFlushedCellsCount(); 229 230 /** 231 * Get the number of cells processed during minor compactions. 232 */ 233 long getCompactedCellsCount(); 234 235 /** 236 * Get the number of cells processed during major compactions. 237 */ 238 long getMajorCompactedCellsCount(); 239 240 /** 241 * Get the total amount of data flushed to disk, in bytes. 242 */ 243 long getFlushedCellsSize(); 244 245 /** 246 * Get the total amount of data processed during minor compactions, in bytes. 247 */ 248 long getCompactedCellsSize(); 249 250 /** 251 * Get the total amount of data processed during major compactions, in bytes. 252 */ 253 long getMajorCompactedCellsSize(); 254 255 /** 256 * @return Count of requests blocked because the memstore size is larger than blockingMemStoreSize 257 */ 258 public long getBlockedRequestsCount(); 259 }