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.io; 019 020import org.apache.hadoop.hbase.metrics.BaseSourceImpl; 021import org.apache.hadoop.metrics2.MetricHistogram; 022import org.apache.hadoop.metrics2.MetricsCollector; 023import org.apache.hadoop.metrics2.MetricsRecordBuilder; 024import org.apache.hadoop.metrics2.lib.Interns; 025import org.apache.yetus.audience.InterfaceAudience; 026 027@InterfaceAudience.Private 028public class MetricsIOSourceImpl extends BaseSourceImpl implements MetricsIOSource { 029 030 private final MetricsIOWrapper wrapper; 031 032 private final MetricHistogram fsReadTimeHisto; 033 private final MetricHistogram fsPReadTimeHisto; 034 private final MetricHistogram fsWriteTimeHisto; 035 036 public MetricsIOSourceImpl(MetricsIOWrapper wrapper) { 037 this(METRICS_NAME, METRICS_DESCRIPTION, METRICS_CONTEXT, METRICS_JMX_CONTEXT, wrapper); 038 } 039 040 public MetricsIOSourceImpl(String metricsName, String metricsDescription, String metricsContext, 041 String metricsJmxContext, MetricsIOWrapper wrapper) { 042 super(metricsName, metricsDescription, metricsContext, metricsJmxContext); 043 044 this.wrapper = wrapper; 045 046 fsReadTimeHisto = 047 getMetricsRegistry().newTimeHistogram(FS_READ_TIME_HISTO_KEY, FS_READ_TIME_HISTO_DESC); 048 fsPReadTimeHisto = 049 getMetricsRegistry().newTimeHistogram(FS_PREAD_TIME_HISTO_KEY, FS_PREAD_TIME_HISTO_DESC); 050 fsWriteTimeHisto = 051 getMetricsRegistry().newTimeHistogram(FS_WRITE_HISTO_KEY, FS_WRITE_TIME_HISTO_DESC); 052 } 053 054 @Override 055 public void updateFsReadTime(long t) { 056 fsReadTimeHisto.add(t); 057 }; 058 059 @Override 060 public void updateFsPReadTime(long t) { 061 fsPReadTimeHisto.add(t); 062 }; 063 064 @Override 065 public void updateFsWriteTime(long t) { 066 fsWriteTimeHisto.add(t); 067 } 068 069 @Override 070 public void getMetrics(MetricsCollector metricsCollector, boolean all) { 071 MetricsRecordBuilder mrb = metricsCollector.addRecord(metricsName); 072 073 // wrapper can be null because this function is called inside of init. 074 if (wrapper != null) { 075 mrb.addCounter(Interns.info(CHECKSUM_FAILURES_KEY, CHECKSUM_FAILURES_DESC), 076 wrapper.getChecksumFailures()); 077 } 078 079 metricsRegistry.snapshot(mrb, all); 080 } 081 082}