org.apache.dubbo.rpc.protocol.dubbo.status.ThreadPoolStatusChecker Maven / Gradle / Ivy
/*
* 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.dubbo.rpc.protocol.dubbo.status;
import org.apache.dubbo.common.constants.CommonConstants;
import org.apache.dubbo.common.extension.Activate;
import org.apache.dubbo.common.extension.ExtensionLoader;
import org.apache.dubbo.common.status.Status;
import org.apache.dubbo.common.status.StatusChecker;
import org.apache.dubbo.common.store.DataStore;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.ThreadPoolExecutor;
/**
* ThreadPoolStatusChecker
*/
@Activate
public class ThreadPoolStatusChecker implements StatusChecker {
@Override
public Status check() {
DataStore dataStore = ExtensionLoader.getExtensionLoader(DataStore.class).getDefaultExtension();
Map executors = dataStore.get(CommonConstants.EXECUTOR_SERVICE_COMPONENT_KEY);
StringBuilder msg = new StringBuilder();
Status.Level level = Status.Level.OK;
for (Map.Entry entry : executors.entrySet()) {
String port = entry.getKey();
ExecutorService executor = (ExecutorService) entry.getValue();
if (executor instanceof ThreadPoolExecutor) {
ThreadPoolExecutor tp = (ThreadPoolExecutor) executor;
boolean ok = tp.getActiveCount() < tp.getMaximumPoolSize() - 1;
Status.Level lvl = Status.Level.OK;
if (!ok) {
level = Status.Level.WARN;
lvl = Status.Level.WARN;
}
if (msg.length() > 0) {
msg.append(";");
}
msg.append("Pool status:").append(lvl).append(", max:").append(tp.getMaximumPoolSize()).append(", core:")
.append(tp.getCorePoolSize()).append(", largest:").append(tp.getLargestPoolSize()).append(", active:")
.append(tp.getActiveCount()).append(", task:").append(tp.getTaskCount()).append(", service port: ").append(port);
}
}
return msg.length() == 0 ? new Status(Status.Level.UNKNOWN) : new Status(level, msg.toString());
}
}