org.apache.flink.runtime.metrics.groups.JobManagerMetricGroup Maven / Gradle / Ivy
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* 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.flink.runtime.metrics.groups;
import org.apache.flink.api.common.JobID;
import org.apache.flink.runtime.jobgraph.JobGraph;
import org.apache.flink.runtime.metrics.MetricRegistry;
import org.apache.flink.runtime.metrics.scope.JobManagerScopeFormat;
import java.util.HashMap;
import java.util.Map;
/**
* Special {@link org.apache.flink.metrics.MetricGroup} representing a JobManager.
*
* Contains extra logic for adding jobs with tasks, and removing jobs when they do
* not contain tasks any more
*/
public class JobManagerMetricGroup extends ComponentMetricGroup {
private final Map jobs = new HashMap<>();
private final String hostname;
public JobManagerMetricGroup(MetricRegistry registry, String hostname) {
this(registry, registry.getScopeFormats().getJobManagerFormat(), hostname);
}
public JobManagerMetricGroup(
MetricRegistry registry,
JobManagerScopeFormat scopeFormat,
String hostname) {
super(registry, scopeFormat.formatScope(hostname));
this.hostname = hostname;
}
public String hostname() {
return hostname;
}
// ------------------------------------------------------------------------
// job groups
// ------------------------------------------------------------------------
public JobManagerJobMetricGroup addJob(JobGraph job) {
JobID jobId = job.getJobID();
String jobName = job.getName();
// get or create a jobs metric group
JobManagerJobMetricGroup currentJobGroup;
synchronized (this) {
if (!isClosed()) {
currentJobGroup = jobs.get(jobId);
if (currentJobGroup == null || currentJobGroup.isClosed()) {
currentJobGroup = new JobManagerJobMetricGroup(registry, this, jobId, jobName);
jobs.put(jobId, currentJobGroup);
}
return currentJobGroup;
} else {
return null;
}
}
}
public void removeJob(JobID jobId) {
if (jobId == null) {
return;
}
synchronized (this) {
JobManagerJobMetricGroup containedGroup = jobs.remove(jobId);
if (containedGroup != null) {
containedGroup.close();
}
}
}
public int numRegisteredJobMetricGroups() {
return jobs.size();
}
@Override
protected Iterable subComponents() {
return jobs.values();
}
}