001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.regionserver; 019 020import org.apache.hadoop.hbase.CompatibilitySingletonFactory; 021import org.apache.yetus.audience.InterfaceAudience; 022 023/** 024 * This class is for maintaining the various regionserver's heap memory manager statistics and 025 * publishing them through the metrics interfaces. 026 */ 027@InterfaceAudience.Private 028public class MetricsHeapMemoryManager { 029 private final MetricsHeapMemoryManagerSource source; 030 031 public MetricsHeapMemoryManager() { 032 this(CompatibilitySingletonFactory.getInstance(MetricsRegionServerSourceFactory.class) 033 .getHeapMemoryManager()); 034 } 035 036 public MetricsHeapMemoryManager(MetricsHeapMemoryManagerSource source) { 037 this.source = source; 038 } 039 040 public MetricsHeapMemoryManagerSource getMetricsSource() { 041 return source; 042 } 043 044 /** 045 * Update/Set the blocked flush count histogram/gauge 046 * @param blockedFlushCount the number of blocked memstore flush since last tuning. 047 */ 048 public void updateBlockedFlushCount(final long blockedFlushCount) { 049 source.updateBlockedFlushCount(blockedFlushCount); 050 } 051 052 /** 053 * Update/Set the unblocked flush count histogram/gauge 054 * @param unblockedFlushCount the number of unblocked memstore flush since last tuning. 055 */ 056 public void updateUnblockedFlushCount(final long unblockedFlushCount) { 057 source.updateUnblockedFlushCount(unblockedFlushCount); 058 } 059 060 /** 061 * Set the current blockcache size used gauge 062 * @param blockCacheSize the current memory usage in blockcache, in bytes. 063 */ 064 public void setCurBlockCacheSizeGauge(final long blockCacheSize) { 065 source.setCurBlockCacheSizeGauge(blockCacheSize); 066 } 067 068 /** 069 * Set the current global memstore size used gauge 070 * @param memStoreSize the current memory usage in memstore, in bytes. 071 */ 072 public void setCurMemStoreSizeGauge(final long memStoreSize) { 073 source.setCurMemStoreSizeGauge(memStoreSize); 074 } 075 076 /** 077 * Update the increase/decrease memstore size histogram 078 * @param memStoreDeltaSize the tuning result of memstore. 079 */ 080 public void updateMemStoreDeltaSizeHistogram(final int memStoreDeltaSize) { 081 source.updateMemStoreDeltaSizeHistogram(memStoreDeltaSize); 082 } 083 084 /** 085 * Update the increase/decrease blockcache size histogram 086 * @param blockCacheDeltaSize the tuning result of blockcache. 087 */ 088 public void updateBlockCacheDeltaSizeHistogram(final int blockCacheDeltaSize) { 089 source.updateBlockCacheDeltaSizeHistogram(blockCacheDeltaSize); 090 } 091 092 /** 093 * Increase the counter for tuner neither expanding memstore global size limit nor expanding 094 * blockcache max size. 095 */ 096 public void increaseTunerDoNothingCounter() { 097 source.increaseTunerDoNothingCounter(); 098 } 099 100 /** 101 * Increase the counter for heap occupancy percent above low watermark 102 */ 103 public void increaseAboveHeapOccupancyLowWatermarkCounter() { 104 source.increaseAboveHeapOccupancyLowWatermarkCounter(); 105 } 106}