org.apache.hadoop.hbase.master.MetricsMasterSourceImpl Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of hbase-hadoop2-compat Show documentation
Show all versions of hbase-hadoop2-compat Show documentation
Interfaces to be implemented in order to smooth
over hadoop version differences
/*
* 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.master;
import org.apache.hadoop.hbase.metrics.BaseSourceImpl;
import org.apache.hadoop.hbase.metrics.Interns;
import org.apache.hadoop.hbase.metrics.OperationMetrics;
import org.apache.hadoop.metrics2.MetricsCollector;
import org.apache.hadoop.metrics2.MetricsRecordBuilder;
import org.apache.hadoop.metrics2.lib.MutableFastCounter;
import org.apache.yetus.audience.InterfaceAudience;
/**
* Hadoop2 implementation of MetricsMasterSource. Implements BaseSource through BaseSourceImpl,
* following the pattern
*/
@InterfaceAudience.Private
public class MetricsMasterSourceImpl extends BaseSourceImpl implements MetricsMasterSource {
private final MetricsMasterWrapper masterWrapper;
private MutableFastCounter clusterRequestsCounter;
private OperationMetrics serverCrashMetrics;
public MetricsMasterSourceImpl(MetricsMasterWrapper masterWrapper) {
this(METRICS_NAME, METRICS_DESCRIPTION, METRICS_CONTEXT, METRICS_JMX_CONTEXT, masterWrapper);
}
public MetricsMasterSourceImpl(String metricsName, String metricsDescription,
String metricsContext, String metricsJmxContext, MetricsMasterWrapper masterWrapper) {
super(metricsName, metricsDescription, metricsContext, metricsJmxContext);
this.masterWrapper = masterWrapper;
}
@Override
public void init() {
super.init();
clusterRequestsCounter = metricsRegistry.newCounter(CLUSTER_REQUESTS_NAME, "", 0L);
/*
* NOTE: Please refer to HBASE-9774 and HBASE-14282. Based on these two issues, HBase is moving
* away from using Hadoop's metric2 to having independent HBase specific Metrics. Use {@link
* BaseSourceImpl#registry} to register the new metrics.
*/
serverCrashMetrics = new OperationMetrics(registry, SERVER_CRASH_METRIC_PREFIX);
}
@Override
public void incRequests(final long inc) {
this.clusterRequestsCounter.incr(inc);
}
@Override
public void getMetrics(MetricsCollector metricsCollector, boolean all) {
MetricsRecordBuilder metricsRecordBuilder = metricsCollector.addRecord(metricsName);
// masterWrapper can be null because this function is called inside of init.
// If the master is already stopped or has initiated a shutdown, no point in registering the
// metrics again.
if (masterWrapper != null && masterWrapper.isRunning()) {
metricsRecordBuilder
.addGauge(Interns.info(MERGE_PLAN_COUNT_NAME, MERGE_PLAN_COUNT_DESC),
masterWrapper.getMergePlanCount())
.addGauge(Interns.info(SPLIT_PLAN_COUNT_NAME, SPLIT_PLAN_COUNT_DESC),
masterWrapper.getSplitPlanCount())
.addGauge(Interns.info(MASTER_ACTIVE_TIME_NAME, MASTER_ACTIVE_TIME_DESC),
masterWrapper.getActiveTime())
.addGauge(Interns.info(MASTER_START_TIME_NAME, MASTER_START_TIME_DESC),
masterWrapper.getStartTime())
.addGauge(Interns.info(MASTER_FINISHED_INITIALIZATION_TIME_NAME,
MASTER_FINISHED_INITIALIZATION_TIME_DESC), masterWrapper.getMasterInitializationTime())
.addGauge(Interns.info(AVERAGE_LOAD_NAME, AVERAGE_LOAD_DESC),
masterWrapper.getAverageLoad())
.tag(Interns.info(LIVE_REGION_SERVERS_NAME, LIVE_REGION_SERVERS_DESC),
masterWrapper.getRegionServers())
.addGauge(Interns.info(NUM_REGION_SERVERS_NAME, NUMBER_OF_REGION_SERVERS_DESC),
masterWrapper.getNumRegionServers())
.tag(Interns.info(DEAD_REGION_SERVERS_NAME, DEAD_REGION_SERVERS_DESC),
masterWrapper.getDeadRegionServers())
.addGauge(Interns.info(NUM_DEAD_REGION_SERVERS_NAME, NUMBER_OF_DEAD_REGION_SERVERS_DESC),
masterWrapper.getNumDeadRegionServers())
.tag(Interns.info(DRAINING_REGION_SERVER_NAME, DRAINING_REGION_SERVER_DESC),
masterWrapper.getDrainingRegionServers())
.addGauge(
Interns.info(NUM_DRAINING_REGION_SERVERS_NAME, NUMBER_OF_DRAINING_REGION_SERVERS_DESC),
masterWrapper.getNumDrainingRegionServers())
.tag(Interns.info(ZOOKEEPER_QUORUM_NAME, ZOOKEEPER_QUORUM_DESC),
masterWrapper.getZookeeperQuorum())
.tag(Interns.info(SERVER_NAME_NAME, SERVER_NAME_DESC), masterWrapper.getServerName())
.tag(Interns.info(CLUSTER_ID_NAME, CLUSTER_ID_DESC), masterWrapper.getClusterId())
.tag(Interns.info(IS_ACTIVE_MASTER_NAME, IS_ACTIVE_MASTER_DESC),
String.valueOf(masterWrapper.getIsActiveMaster()));
}
metricsRegistry.snapshot(metricsRecordBuilder, all);
if (metricsAdapter != null) {
metricsAdapter.snapshotAllMetrics(registry, metricsRecordBuilder);
}
}
@Override
public OperationMetrics getServerCrashMetrics() {
return serverCrashMetrics;
}
}