/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.internal.diagnostics;
import com.hazelcast.core.Member;
import com.hazelcast.instance.NodeState;
import com.hazelcast.nio.Address;
import com.hazelcast.spi.impl.NodeEngineImpl;
import com.hazelcast.spi.properties.HazelcastProperty;
import static com.hazelcast.internal.diagnostics.Diagnostics.PREFIX;
import static java.util.concurrent.TimeUnit.SECONDS;
/**
* Prints all kinds of Hazelcast member specific info. Lots of other information is already captured
* through the metrics.
*/
public class MemberHazelcastInstanceInfoPlugin extends DiagnosticsPlugin {
/**
* The period in seconds the HazelcastMemberInstanceInfoPlugin runs.
*
* This plugin is very cheap to use.
*
* If set to 0, the plugin is disabled.
*/
public static final HazelcastProperty PERIOD_SECONDS = new HazelcastProperty(
PREFIX + ".memberinfo.period.seconds", 60, SECONDS);
private final long periodMillis;
private final NodeEngineImpl nodeEngine;
public MemberHazelcastInstanceInfoPlugin(NodeEngineImpl nodeEngine) {
super(nodeEngine.getLogger(MemberHazelcastInstanceInfoPlugin.class));
this.periodMillis = nodeEngine.getProperties().getMillis(PERIOD_SECONDS);
this.nodeEngine = nodeEngine;
}
@Override
public long getPeriodMillis() {
return periodMillis;
}
@Override
public void onStart() {
logger.info("Plugin:active, period-millis:" + periodMillis);
}
@Override
public void run(DiagnosticsLogWriter writer) {
writer.startSection("HazelcastInstance");
writer.writeKeyValueEntry("thisAddress", nodeEngine.getNode().getThisAddress().toString());
writer.writeKeyValueEntry("isRunning", nodeEngine.getNode().isRunning());
writer.writeKeyValueEntry("isLite", nodeEngine.getNode().isLiteMember());
writer.writeKeyValueEntry("joined", nodeEngine.getNode().getClusterService().isJoined());
NodeState state = nodeEngine.getNode().getState();
writer.writeKeyValueEntry("nodeState", state == null ? "null" : state.toString());
writer.writeKeyValueEntry("clusterId", nodeEngine.getClusterService().getClusterId());
writer.writeKeyValueEntry("clusterSize", nodeEngine.getClusterService().getSize());
writer.writeKeyValueEntry("isMaster", nodeEngine.getClusterService().isMaster());
Address masterAddress = nodeEngine.getClusterService().getMasterAddress();
writer.writeKeyValueEntry("masterAddress", masterAddress == null ? "null" : masterAddress.toString());
writer.startSection("Members");
for (Member member : nodeEngine.getClusterService().getMemberImpls()) {
writer.writeEntry(member.getAddress().toString());
}
writer.endSection();
writer.endSection();
}
}