package org.apache.cassandra.utils;
/*
*
* 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.
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*/
import java.lang.management.ManagementFactory;
import java.util.Set;
import javax.management.JMX;
import javax.management.MBeanServer;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import com.google.common.collect.Iterables;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.cassandra.concurrent.IExecutorMBean;
import org.apache.cassandra.db.ColumnFamilyStore;
import org.apache.cassandra.db.CompactionManager;
import org.apache.cassandra.net.MessagingService;
import org.apache.cassandra.service.GCInspector;
public class StatusLogger
{
private static final Logger logger = LoggerFactory.getLogger(StatusLogger.class);
public static void log()
{
MBeanServer server = ManagementFactory.getPlatformMBeanServer();
// everything from o.a.c.concurrent
logger.info(String.format("%-25s%10s%10s", "Pool Name", "Active", "Pending"));
Set<ObjectName> request, internal;
try
{
request = server.queryNames(new ObjectName("org.apache.cassandra.request:type=*"), null);
internal = server.queryNames(new ObjectName("org.apache.cassandra.internal:type=*"), null);
}
catch (MalformedObjectNameException e)
{
throw new RuntimeException(e);
}
for (ObjectName objectName : Iterables.concat(request, internal))
{
String poolName = objectName.getKeyProperty("type");
IExecutorMBean threadPoolProxy = JMX.newMBeanProxy(server, objectName, IExecutorMBean.class);
logger.info(String.format("%-25s%10s%10s",
poolName, threadPoolProxy.getActiveCount(), threadPoolProxy.getPendingTasks()));
}
// one offs
logger.info(String.format("%-25s%10s%10s",
"CompactionManager", "n/a", CompactionManager.instance.getPendingTasks()));
int pendingCommands = 0;
for (int n : MessagingService.instance().getCommandPendingTasks().values())
{
pendingCommands += n;
}
int pendingResponses = 0;
for (int n : MessagingService.instance().getResponsePendingTasks().values())
{
pendingResponses += n;
}
logger.info(String.format("%-25s%10s%10s",
"MessagingService", "n/a", pendingCommands + "," + pendingResponses));
// per-CF stats
logger.info(String.format("%-25s%20s%20s%20s", "ColumnFamily", "Memtable ops,data", "Row cache size/cap", "Key cache size/cap"));
for (ColumnFamilyStore cfs : ColumnFamilyStore.all())
{
logger.info(String.format("%-25s%20s%20s%20s",
cfs.table.name + "." + cfs.columnFamily,
cfs.getMemtableColumnsCount() + "," + cfs.getMemtableDataSize(),
cfs.getRowCacheSize() + "/" + cfs.getRowCacheCapacity(),
cfs.getKeyCacheSize() + "/" + cfs.getKeyCacheCapacity()));
}
}
}