[jboss-jira] [JBoss JIRA] (WFCORE-736) Memory leak in server management controller

[Sergey Lisovoy (JIRA)]

Sergey Lisovoy created WFCORE-736:
-------------------------------------

             Summary: Memory leak in server management controller
                 Key: WFCORE-736
                 URL: https://issues.jboss.org/browse/WFCORE-736
             Project: WildFly Core
          Issue Type: Bug
          Components: Remoting
            Reporter: Sergey Lisovoy
            Assignee: David Lloyd


I have a simple thread that monitor remote wildfly process status. After some time client fails. Wildfly server also eat all memory and reports about connection errors. Some times wildfly also fails with fails with OutOfMemory exception.

Client code:
{code:java}
package ru.kamis.tests.xniomemoryleaks;

import org.jboss.as.controller.client.ModelControllerClient;
import org.jboss.as.controller.client.helpers.Operations;
import org.jboss.dmr.ModelNode;

public class OutOfMemoryDemo {
	public static void main(String[] args) throws Exception {
		
		for(int i=0; i<1000000; i++) {
			ModelControllerClient client = null;
			client = ModelControllerClient.Factory.create("localhost", 9990);
			
			ModelNode operation = Operations.createReadAttributeOperation(new ModelNode().setEmptyList(), "server-state");
			client.execute(operation);
			
			client.close();
			
			if(i % 1000 == 0) {
				System.out.println("Processed: " + i);
			}
		}
	}
}
{code}

Client output: 
{noformat}
июн 05, 2015 11:21:51 AM org.xnio.Xnio <clinit>
INFO: XNIO version 3.2.0.Final
июн 05, 2015 11:21:51 AM org.xnio.nio.NioXnio <clinit>
INFO: XNIO NIO Implementation Version 3.3.0.Final
июн 05, 2015 11:21:51 AM org.jboss.remoting3.EndpointImpl <clinit>
INFO: JBoss Remoting version 4.0.6.Final
Processed: 0
Processed: 1000
Processed: 2000
Processed: 3000
Processed: 4000
Processed: 5000
Exception in thread "main" java.io.IOException: java.net.ConnectException: JBAS012144: Could not connect to http-remoting://localhost:9990. The connection timed out
	at org.jboss.as.controller.client.impl.AbstractModelControllerClient.executeForResult(AbstractModelControllerClient.java:129)
	at org.jboss.as.controller.client.impl.AbstractModelControllerClient.execute(AbstractModelControllerClient.java:71)
	at ru.kamis.tests.xniomemoryleaks.OutOfMemoryDemo.main(OutOfMemoryDemo.java:12)
Caused by: java.net.ConnectException: JBAS012144: Could not connect to http-remoting://localhost:9990. The connection timed out
	at org.jboss.as.protocol.ProtocolConnectionUtils.connectSync(ProtocolConnectionUtils.java:119)
	at org.jboss.as.protocol.ProtocolConnectionManager$EstablishingConnection.connect(ProtocolConnectionManager.java:256)
	at org.jboss.as.protocol.ProtocolConnectionManager.connect(ProtocolConnectionManager.java:70)
	at org.jboss.as.protocol.mgmt.FutureManagementChannel$Establishing.getChannel(FutureManagementChannel.java:204)
	at org.jboss.as.controller.client.impl.RemotingModelControllerClient.getOrCreateChannel(RemotingModelControllerClient.java:148)
	at org.jboss.as.controller.client.impl.RemotingModelControllerClient$1.getChannel(RemotingModelControllerClient.java:67)
	at org.jboss.as.protocol.mgmt.ManagementChannelHandler.executeRequest(ManagementChannelHandler.java:117)
	at org.jboss.as.protocol.mgmt.ManagementChannelHandler.executeRequest(ManagementChannelHandler.java:92)
	at org.jboss.as.controller.client.impl.AbstractModelControllerClient.executeRequest(AbstractModelControllerClient.java:236)
	at org.jboss.as.controller.client.impl.AbstractModelControllerClient.execute(AbstractModelControllerClient.java:141)
	at org.jboss.as.controller.client.impl.AbstractModelControllerClient.executeForResult(AbstractModelControllerClient.java:127)
	... 2 more
{noformat}

Client libraries:
{code:xml}
<dependency>
	<groupId>org.wildfly</groupId>
	<artifactId>wildfly-controller-client</artifactId>
	<version>8.2.0.Final</version>
</dependency>
<dependency>
	<groupId>org.jboss.remoting</groupId>
	<artifactId>jboss-remoting</artifactId>
	<version>4.0.6.Final</version>
</dependency>
{code}

Project to reproduce error:
[https://github.com/lis0x90/jboss-remoting-momory-leak-reproduce]

Wildfly logs: 
{noformat}
...
2015-06-05 11:21:10,195 DEBUG [org.jboss.as.config] (MSC service thread 1-6) VM Arguments: -Dprogram.name=standalone.bat -Xms64M -Xmx512M -XX:MaxPermSize=256M -Djboss.remoting.leakdebugging=true -Duser.country=RU -Duser.language=en -Djava.net.preferIPv4Stack=true -Djboss.modules.system.pkgs=org.jboss.byteman -Dorg.jboss.boot.log.file=H:\java\wildfly-8.2.0.Final\standalone\log\server.log -Dlogging.configuration=file:H:\java\wildfly-8.2.0.Final\standalone\configuration/logging.properties 
...
2015-06-05 11:21:11,923 INFO  [org.jboss.as] (Controller Boot Thread) JBAS015874: WildFly 8.2.0.Final "Tweek" started in 2259ms - Started 194 of 246 services (86 services are lazy, passive or on-demand)
2015-06-05 11:22:51,726 ERROR [org.jboss.remoting.remote.connection] (XNIO-1 I/O-2) JBREM000200: Remote connection failed: java.io.IOException: Программа на вашем хост-компьютере разорвала установленное подключение
2015-06-05 11:23:59,306 ERROR [org.jboss.remoting.remote.connection] (XNIO-1 I/O-1) JBREM000200: Remote connection failed: java.io.IOException: Программа на вашем хост-компьютере разорвала установленное подключение
2015-06-05 11:24:02,527 ERROR [org.jboss.remoting.remote.connection] (XNIO-1 I/O-1) JBREM000200: Remote connection failed: java.io.IOException: Программа на вашем хост-компьютере разорвала установленное подключение
2015-06-05 11:24:16,142 ERROR [org.jboss.remoting.remote.connection] (XNIO-1 I/O-2) JBREM000200: Remote connection failed: java.io.IOException: Программа на вашем хост-компьютере разорвала установленное подключение
2015-06-05 11:24:21,312 ERROR [org.jboss.remoting.remote.connection] (XNIO-1 I/O-1) JBREM000200: Remote connection failed: java.io.IOException: Программа на вашем хост-компьютере разорвала установленное подключение
2015-06-05 11:24:27,458 ERROR [org.jboss.remoting.remote.connection] (XNIO-1 I/O-2) JBREM000200: Remote connection failed: java.io.IOException: Программа на вашем хост-компьютере разорвала установленное подключение
{noformat}



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