堆栈内存溢出
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Apache ActiveMQ中的内存泄漏

[英]Memory leak in Apache ActiveMQ

 原文  2019-08-05 13:14:52  3   1    java/ memory-leaks/ out-of-memory/ activemq/ heap-memory

问题描述

我是Apache ActiveMQ的新手，在ActiveMQ中发送和存储大量大消息（最大消息大约100mb）时遇到了一些麻烦。 消息是持久性的，因此据我所知，它们存储在硬盘驱动器中，而不是存储在内存中。 但是奇怪的是，当数据库大小（KahaDB文件夹）达到2.8Gb（占4Gb jvm堆的70％）时，ActiveMQ崩溃。 似乎ActiveMQ仍将所有消息存储在内存中。 我首先需要存储所有消息，然后再使用所有消息。

我的配置activemq.xml 

<policyEntry queue=">" producerFlowControl="false" memoryLimit="100MB">
    <pendingQueuePolicy>
        <fileQueueCursor />
    </pendingQueuePolicy>
</policyEntry>
...
<systemUsage>
    <systemUsage>
        <memoryUsage>
            <memoryUsage percentOfJvmHeap="70" />
        </memoryUsage>
        <storeUsage>
            <storeUsage limit="100 gb"/>
        </storeUsage>
        <tempUsage>
            <tempUsage limit="50 gb"/>
        </tempUsage>
    </systemUsage>
</systemUsage>
...
<transportConnectors>
    <transportConnector name="openwire" uri="tcp://0.0.0.0:61616?maximumConnections=1000&amp;wireFormat.maxFrameSize=204857600"/>
</transportConnectors>

那就是我如何在Java中发送消息。 资源尝试会关闭所有资源。 

try (Connection conn = queueConnFactory.createConnection();
        Session session = conn.createSession(true, Session.AUTO_ACKNOWLEDGE);
        MessageProducer producer = session.createProducer(getTargetQueue())) {

      ObjectMessage message = session.createObjectMessage(transferMessage);
      producer.send(message);
    }

这是上次崩溃时的activeMQ日志。 

ERROR | Forwarding of acks failed | org.apache.activemq.store.kahadb.MessageDatabase | ActiveMQ Journal Checkpoint Worker
java.lang.OutOfMemoryError: Java heap space
2019-08-02 20:32:12,421 | INFO  | Ignoring no space left exception, java.io.IOException: Java heap space | org.apache.activemq.util.DefaultIOExceptionHandler | ActiveMQ Journal Checkpoint Worker
java.io.IOException: Java heap space
    at org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:40)[activemq-client-5.15.9.jar:5.15.9]
    at org.apache.activemq.store.kahadb.MessageDatabase$AckCompactionRunner.run(MessageDatabase.java:2075)[activemq-kahadb-store-5.15.9.jar:5.15.9]
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.FutureTask.run(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)[:1.8.0_211]
    at java.lang.Thread.run(Unknown Source)[:1.8.0_211]
2019-08-02 20:37:12,514 | WARN  | Async error occurred: java.lang.OutOfMemoryError: Java heap space | org.apache.activemq.broker.TransportConnection.Service | ActiveMQ Transport: tcp:///10.11.34.224:58668@61616
2019-08-02 20:37:44,899 | ERROR | Forwarding of acks failed | org.apache.activemq.store.kahadb.MessageDatabase | ActiveMQ Journal Checkpoint Worker
java.lang.IllegalArgumentException: Self-suppression not permitted
    at java.lang.Throwable.addSuppressed(Unknown Source)[:1.8.0_211]
    at org.apache.activemq.store.kahadb.MessageDatabase.forwardAllAcks(MessageDatabase.java:2132)[activemq-kahadb-store-5.15.9.jar:5.15.9]
    at org.apache.activemq.store.kahadb.MessageDatabase.access$700(MessageDatabase.java:121)[activemq-kahadb-store-5.15.9.jar:5.15.9]
    at org.apache.activemq.store.kahadb.MessageDatabase$AckCompactionRunner.run(MessageDatabase.java:2068)[activemq-kahadb-store-5.15.9.jar:5.15.9]
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.FutureTask.run(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)[:1.8.0_211]
    at java.lang.Thread.run(Unknown Source)[:1.8.0_211]
2019-08-02 20:37:44,899 | INFO  | Stopping BrokerService[localhost] due to exception, java.io.IOException: Self-suppression not permitted | org.apache.activemq.util.DefaultIOExceptionHandler | ActiveMQ Journal Checkpoint Worker
java.io.IOException: Self-suppression not permitted
    at org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:40)[activemq-client-5.15.9.jar:5.15.9]
    at org.apache.activemq.store.kahadb.MessageDatabase$AckCompactionRunner.run(MessageDatabase.java:2075)[activemq-kahadb-store-5.15.9.jar:5.15.9]
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.FutureTask.run(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)[:1.8.0_211]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)[:1.8.0_211]
    at java.lang.Thread.run(Unknown Source)[:1.8.0_211]
2019-08-02 20:37:44,946 | INFO  | Apache ActiveMQ 5.15.9 (localhost, ID:PVAH-WF-58622-1564761931309-0:1) is shutting down | org.apache.activemq.broker.BrokerService | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:37:45,133 | INFO  | Connector openwire stopped | org.apache.activemq.broker.TransportConnector | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:37:45,180 | INFO  | Connector amqp stopped | org.apache.activemq.broker.TransportConnector | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:37:46,974 | INFO  | Connector stomp stopped | org.apache.activemq.broker.TransportConnector | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:37:46,974 | INFO  | Connector mqtt stopped | org.apache.activemq.broker.TransportConnector | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:37:48,316 | INFO  | Connector ws stopped | org.apache.activemq.broker.TransportConnector | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:37:48,955 | INFO  | PListStore:[C:\ActiveMQ\bin\win64\..\..\data\localhost\tmp_storage] stopped | org.apache.activemq.store.kahadb.plist.PListStoreImpl | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:37:49,002 | INFO  | Stopping async queue tasks | org.apache.activemq.store.kahadb.KahaDBStore | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:37:49,002 | INFO  | Stopping async topic tasks | org.apache.activemq.store.kahadb.KahaDBStore | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:37:49,002 | INFO  | Stopped KahaDB | org.apache.activemq.store.kahadb.KahaDBStore | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:37:51,404 | INFO  | Apache ActiveMQ 5.15.9 (localhost, ID:PVAH-WF-58622-1564761931309-0:1) uptime 1 hour 32 minutes | org.apache.activemq.broker.BrokerService | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:37:58,502 | INFO  | Apache ActiveMQ 5.15.9 (localhost, ID:PVAH-WF-58622-1564761931309-0:1) is shutdown | org.apache.activemq.broker.BrokerService | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:37:58,534 | INFO  | Closing org.apache.activemq.xbean.XBeanBrokerFactory$1@14d57a4: startup date [Fri Aug 02 19:05:26 MSK 2019]; root of context hierarchy | org.apache.activemq.xbean.XBeanBrokerFactory$1 | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:38:00,296 | INFO  | Destroying Spring FrameworkServlet 'dispatcher' | /admin | IOExceptionHandler: stopping BrokerService[localhost]
2019-08-02 20:38:00,764 | INFO  | Refreshing org.apache.activemq.xbean.XBeanBrokerFactory$1@71d9564d: startup date [Fri Aug 02 20:38:00 MSK 2019]; root of context hierarchy | org.apache.activemq.xbean.XBeanBrokerFactory$1 | WrapperSimpleAppMain
2019-08-02 20:38:03,619 | INFO  | Using Persistence Adapter: KahaDBPersistenceAdapter[C:\ActiveMQ\bin\win64\..\..\data\kahadb] | org.apache.activemq.broker.BrokerService | WrapperSimpleAppMain
2019-08-02 20:38:04,196 | INFO  | ignoring zero length, partially initialised journal data file: db-404.log number = 404 , length = 0 | org.apache.activemq.store.kahadb.disk.journal.Journal | WrapperSimpleAppMain
2019-08-02 20:38:05,819 | INFO  | KahaDB is version 6 | org.apache.activemq.store.kahadb.MessageDatabase | WrapperSimpleAppMain
2019-08-02 20:38:06,177 | INFO  | PListStore:[C:\ActiveMQ\bin\win64\..\..\data\localhost\tmp_storage] started | org.apache.activemq.store.kahadb.plist.PListStoreImpl | WrapperSimpleAppMain
2019-08-02 20:38:06,177 | INFO  | Apache ActiveMQ 5.15.9 (localhost, ID:PVAH-WF-58622-1564761931309-0:2) is starting | org.apache.activemq.broker.BrokerService | WrapperSimpleAppMain
2019-08-02 20:38:10,374 | INFO  | PListStore:[C:\ActiveMQ\bin\win64\..\..\data\localhost\tmp_storage] initialized | org.apache.activemq.store.kahadb.plist.PListStoreImpl | WrapperSimpleAppMain
2019-08-02 20:38:26,925 | WARN  | Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.apache.activemq.xbean.XBeanBrokerService#0' defined in class path resource [activemq.xml]: Invocation of init method failed; nested exception is java.lang.OutOfMemoryError: Java heap space | org.apache.activemq.xbean.XBeanBrokerFactory$1 | WrapperSimpleAppMain
2019-08-02 20:38:26,925 | ERROR | Failed to load: class path resource [activemq.xml], reason: Error creating bean with name 'org.apache.activemq.xbean.XBeanBrokerService#0' defined in class path resource [activemq.xml]: Invocation of init method failed; nested exception is java.lang.OutOfMemoryError: Java heap space | org.apache.activemq.xbean.XBeanBrokerFactory | WrapperSimpleAppMain
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.apache.activemq.xbean.XBeanBrokerService#0' defined in class path resource [activemq.xml]: Invocation of init method failed; nested exception is java.lang.OutOfMemoryError: Java heap space
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1634)[spring-beans-4.3.18.RELEASE.jar:4.3.18.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)[spring-beans-4.3.18.RELEASE.jar:4.3.18.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)[spring-beans-4.3.18.RELEASE.jar:4.3.18.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312)[spring-beans-4.3.18.RELEASE.jar:4.3.18.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)[spring-beans-4.3.18.RELEASE.jar:4.3.18.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308)[spring-beans-4.3.18.RELEASE.jar:4.3.18.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)[spring-beans-4.3.18.RELEASE.jar:4.3.18.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)[spring-beans-4.3.18.RELEASE.jar:4.3.18.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)[spring-context-4.3.18.RELEASE.jar:4.3.18.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)[spring-context-4.3.18.RELEASE.jar:4.3.18.RELEASE]
    at org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:64)[xbean-spring-4.2.jar:4.2]
    at org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:52)[xbean-spring-4.2.jar:4.2]
    at org.apache.activemq.xbean.XBeanBrokerFactory$1.<init>(XBeanBrokerFactory.java:104)[activemq-spring-5.15.9.jar:5.15.9]
    at org.apache.activemq.xbean.XBeanBrokerFactory.createApplicationContext(XBeanBrokerFactory.java:104)[activemq-spring-5.15.9.jar:5.15.9]
    at org.apache.activemq.xbean.XBeanBrokerFactory.createBroker(XBeanBrokerFactory.java:67)[activemq-spring-5.15.9.jar:5.15.9]
    at org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:71)[activemq-broker-5.15.9.jar:5.15.9]
    at org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:54)[activemq-broker-5.15.9.jar:5.15.9]
    at org.apache.activemq.console.command.StartCommand.runTask(StartCommand.java:87)[activemq-console-5.15.9.jar:5.15.9]
    at org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:63)[activemq-console-5.15.9.jar:5.15.9]
    at org.apache.activemq.console.command.ShellCommand.runTask(ShellCommand.java:154)[activemq-console-5.15.9.jar:5.15.9]
    at org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:63)[activemq-console-5.15.9.jar:5.15.9]
    at org.apache.activemq.console.command.ShellCommand.main(ShellCommand.java:104)[activemq-console-5.15.9.jar:5.15.9]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.8.0_211]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)[:1.8.0_211]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)[:1.8.0_211]
    at java.lang.reflect.Method.invoke(Unknown Source)[:1.8.0_211]
    at org.apache.activemq.console.Main.runTaskClass(Main.java:262)[activemq.jar:5.15.9]
    at org.apache.activemq.console.Main.main(Main.java:115)[activemq.jar:5.15.9]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.8.0_211]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)[:1.8.0_211]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)[:1.8.0_211]
    at java.lang.reflect.Method.invoke(Unknown Source)[:1.8.0_211]
    at org.tanukisoftware.wrapper.WrapperSimpleApp.run(WrapperSimpleApp.java:240)[wrapper.jar:3.2.3]
    at java.lang.Thread.run(Unknown Source)[:1.8.0_211]

1 个解决方案

解决方案1
 0 已采纳  2019-08-05 17:06:11

在这一点上，我看不到任何内存泄漏的迹象。 仅仅因为经纪人内存不足，并不意味着存在泄漏。 您可能根本没有为JVM提供足够的堆来满足您的用例。

同样，仅因为代理使用各种数据库（即KahaDB）将消息存储到磁盘上，并不意味着代理非常像数据库。 尽管事实与您的声明相反，消息仍保留在磁盘上，但代理仍将在内存中存储尽可能多的消息数据。 一旦将消息数据写入磁盘，然后将其从内存中清除，然后在使用者需要时立即从磁盘中重新加载，这将是非常低效的。 代理还必须跟踪非持久性消息，而不将其写入磁盘。

如果您将要存储所有数据，然后在以后检索它们，那么最好只使用一个数据库，因为数据库更适合于这种用例。 消息代理通常更适用于以下情况：消费者与生产者同时处于活动状态，并且消息没有在代理上累积，而是在消息到达后立即分发给消费者。

您的代码段可能是反模式。 JMS连接是线程安全的，可以重复使用。 实际上，如果应用程序除了发送一条单独的消息之外，还执行其他任何JMS工作，则为发送的每个消息打开和关闭连接都是一种反模式。

最后，您可以考虑迁移到ActiveMQ Artemis （即下一代ActiveMQ），因为它支持“大型”消息 -ActiveMQ 5.x缺少的消息 。

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