启用持久性的Java堆内存已满

Question

在代理中启用持久性。xml和when-Xms

2020-08-03 02:25:58,969 WARN  [org.apache.activemq.artemis.core.server] AMQ222033: Page file 000000005.page had incomplete records at position 9,259,622 at record number 4,224
2020-08-03 02:31:19,390 WARN  [org.apache.activemq.artemis.core.server] AMQ222288: Page 5, message 4,224 could not be found on offset 9,259,622, with starting message 4,224. This represents a logic error or inconsistency on the data, and the system will try once again from the beggining of the page file.
2020-08-03 03:05:10,331 WARN  [org.apache.activemq.artemis.utils.actors.OrderedExecutor] Java heap space: java.lang.OutOfMemoryError: Java heap space

我能够确认堆是100%。

Heap Usage:
G1 Heap:
   regions  = 2048
   capacity = 4294967296 (4096.0MB)
   used     = 4285561048 (4087.0295028686523MB)
   free     = 9406248 (8.970497131347656MB)
   99.78099372237921% used
G1 Young Generation:
Eden Space:
   regions  = 0
   capacity = 8388608 (8.0MB)
   used     = 0 (0.0MB)
   free     = 8388608 (8.0MB)
   0.0% used
Survivor Space:
   regions  = 0
   capacity = 0 (0.0MB)
   used     = 0 (0.0MB)
   free     = 0 (0.0MB)
   0.0% used
G1 Old Generation:
   regions  = 2048
   capacity = 4286578688 (4088.0MB)
   used     = 4285561048 (4087.0295028686523MB)
   free     = 1017640 (0.9704971313476562MB)
   99.97625985490832% used

14525 interned Strings occupying 1435888 bytes.

使用Artemis版本2.13.0。VM是一个2核Linux机器，有7 GB内存。我已经禁用了持久性。另一个观察是，当我使用top命令时，RES大小正在逐渐增大。

客户端配置：（使用camel和activeMq JMS组件）

  <bean id="conxnFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
      <property name="brokerURL" value="tcp://domain-name:port" />
    </bean>

    <bean id="pooledconxnFactory" class="org.apache.activemq.pool.PooledConnectionFactory" init-method="start" destroy-method="stop">
      <property name="maxConnections" value="5" />
      <property name="connectionFactory" ref="conxnFactory" />
    </bean>

    <bean id="config" class="org.apache.camel.component.jms.JmsConfiguration">
      <property name="connectionFactory" ref="pooledconxnFactory" />
      <property name="concurrentConsumers" value="5" />
    </bean>

    <bean id="jmsqueue" class="org.apache.activemq.camel.component.ActiveMQComponent">
      <property name="configuration" ref="config" />
    </bean>
    
    <camelContext id="camel" xmlns="http://camel.apache.org/schema/spring">
      <endpoint id="inputQueue" uri="jmsqueue:queue:dataqueue1" />
      
      <route>
        <from uri="ref:inputQueue" />
...

我无法获取heapdump，但生成了一个hs_err_pid文件。

...
Other Threads:
  0x00007f9d10282000 VMThread [stack: 0x00007f9d147a4000,0x00007f9d148a4000] [id=68249]
  0x00007f9d102d2800 WatcherThread [stack: 0x00007f9d00f00000,0x00007f9d01000000] [id=68257]

=>0x00007f9d10023000 (exited) GCTaskThread [stack: 0x00007f9d16eaa000,0x00007f9d16faa000] [id=68242]

VM state:at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread:  ([mutex/lock_event])
[0x00007f9d10007bd0] Threads_lock - owner thread: 0x00007f9d10282000
[0x00007f9d100080d0] Heap_lock - owner thread: 0x00007f9cf421d800

Heap:
 garbage-first heap   total 2097152K, used 2088898K [0x0000000080000000, 0x0000000080104000, 0x0000000100000000)
  region size 1024K, 0 young (0K), 0 survivors (0K)
 Metaspace       used 46102K, capacity 46842K, committed 47408K, reserved 1091584K
  class space    used 5086K, capacity 5295K, committed 5424K, reserved 1048576K

Heap Regions: (Y=young(eden), SU=young(survivor), HS=humongous(starts), HC=humongous(continues), CS=collection set, F=free, TS=gc time stamp, PTAMS=previous top-at-mark-start, NTAMS=next top-at-mark-start)
AC   0  O    TS     0 PTAMS 0x0000000080000000 NTAMS 0x0000000080000000 space 1024K,  99% used [0x0000000080000000, 0x0000000080100000)
AC   0  O    TS     0 PTAMS 0x0000000080100000 NTAMS 0x0000000080100000 space 1024K,  99% used [0x0000000080100000, 0x0000000080200000)
AC   0  O    TS     0 PTAMS 0x0000000080200000 NTAMS 0x0000000080200000 space 1024K,  99% used [0x0000000080200000, 0x0000000080300000)
AC   0  O    TS     0 PTAMS 0x0000000080300000 NTAMS 0x0000000080300000 space 1024K,  99% used [0x0000000080300000, 0x0000000080400000)
AC   0  O    TS     0 PTAMS 0x0000000080400000 NTAMS 0x0000000080400000 space 1024K,  99% used [0x0000000080400000, 0x0000000080500000)
AC   0  O    TS     0 PTAMS 0x0000000080500000 NTAMS 0x0000000080500000 space 1024K,  99% used [0x0000000080500000, 0x0000000080600000)
AC   0  O    TS     0 PTAMS 0x0000000080600000 NTAMS 0x0000000080600000 space 1024K,  98% used [0x0000000080600000, 0x0000000080700000)
....
...
Deoptimization events (10 events):
Event: 26931.254 Thread 0x00007f9ce0031000 Uncommon trap: reason=bimorphic action=maybe_recompile pc=0x00007f9d01589b58 method=java.util.AbstractCollection.toArray()[Ljava/lang/Object; @ 1
Event: 26940.746 Thread 0x00007f9cbc4e7800 Uncommon trap: reason=class_check action=maybe_recompile pc=0x00007f9d01c69704 method=org.apache.activemq.artemis.core.remoting.impl.netty.ActiveMQChannelHandler.lambda$channelInactive$0(Lio/netty/channel/ChannelHandlerContext;)V @ 13
Event: 27003.328 Thread 0x00007f9cbc4e7800 Uncommon trap: reason=unstable_if action=reinterpret pc=0x00007f9d01f98b44 method=org.apache.activemq.artemis.utils.UUID.toString()Ljava/lang/String; @ 4
Event: 27003.328 Thread 0x00007f9cbc4e7800 Uncommon trap: reason=class_check action=maybe_recompile pc=0x00007f9d02a77920 method=org.apache.activemq.artemis.core.server.impl.QueueImpl$ConsumerHolder.getPriority()I @ 4
Event: 27003.328 Thread 0x00007f9cbc4e7800 Uncommon trap: reason=class_check action=maybe_recompile pc=0x00007f9d011dcd40 method=org.apache.activemq.artemis.core.server.impl.QueueImpl$ConsumerHolder.getPriority()I @ 4
Event: 27003.328 Thread 0x00007f9cbc4e7800 Uncommon trap: reason=unstable_if action=reinterpret pc=0x00007f9d01ba2a84 method=java.lang.AbstractStringBuilder.append(I)Ljava/lang/AbstractStringBuilder; @ 16
Event: 27142.215 Thread 0x0000000001333000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x00007f9d02660584 method=java.net.InetAddress.toString()Ljava/lang/String; @ 16
Event: 27142.216 Thread 0x0000000001333000 Uncommon trap: reason=class_check action=maybe_recompile pc=0x00007f9d029b9650 method=org.apache.activemq.artemis.utils.ActiveMQThreadPoolExecutor$ThreadPoolQueue.offer(Ljava/lang/Object;)Z @ 2
Event: 29769.075 Thread 0x00007f9d10b14000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x00007f9d0267c37c method=java.util.concurrent.FutureTask.runAndReset()Z @ 115
Event: 30265.745 Thread 0x00007f9d106f3800 Uncommon trap: reason=unstable_if action=reinterpret pc=0x00007f9d0267c418 method=java.util.concurrent.FutureTask.run()V @ 66

Internal exceptions (10 events):
Event: 31469.887 Thread 0x00007f9cf4007800 Exception <a 'java/lang/OutOfMemoryError'> (0x000000008004efc8) thrown at [/HUDSON/workspace/8-2-build-linux-amd64/jdk8u131/8869/hotspot/src/share/vm/gc_interface/collectedHeap.inline.hpp, line 159]
Event: 31486.605 Thread 0x00007f9cf4007800 Exception <a 'java/lang/OutOfMemoryError'> (0x000000008004efc8) thrown at [/HUDSON/workspace/8-2-build-linux-amd64/jdk8u131/8869/hotspot/src/share/vm/gc_interface/collectedHeap.inline.hpp, line 159]
Event: 31504.901 Thread 0x00007f9cf4007800 Exception <a 'java/lang/OutOfMemoryError'> (0x000000008004efc8) thrown at [/HUDSON/workspace/8-2-build-linux-amd64/jdk8u131/8869/hotspot/src/share/vm/gc_interface/collectedHeap.inline.hpp, line 159]
Event: 31522.574 Thread 0x00007f9cf4007800 Exception <a 'java/lang/OutOfMemoryError'> (0x000000008004efc8) thrown at [/HUDSON/workspace/8-2-build-linux-amd64/jdk8u131/8869/hotspot/src/share/vm/gc_interface/collectedHeap.inline.hpp, line 159]
Event: 31538.769 Thread 0x00007f9d110a4000 Exception <a 'java/lang/OutOfMemoryError'> (0x000000008004efc8) thrown at [/HUDSON/workspace/8-2-build-linux-amd64/jdk8u131/8869/hotspot/src/share/vm/gc_interface/collectedHeap.inline.hpp, line 159]
Event: 31556.358 Thread 0x00007f9d110a4000 Exception <a 'java/lang/OutOfMemoryError'> (0x000000008004efc8) thrown at [/HUDSON/workspace/8-2-build-linux-amd64/jdk8u131/8869/hotspot/src/share/vm/gc_interface/collectedHeap.inline.hpp, line 159]
Event: 31574.508 Thread 0x00007f9d110a4000 Exception <a 'java/lang/OutOfMemoryError'> (0x000000008004efc8) thrown at [/HUDSON/workspace/8-2-build-linux-amd64/jdk8u131/8869/hotspot/src/share/vm/gc_interface/collectedHeap.inline.hpp, line 159]
Event: 31590.147 Thread 0x00007f9d10e37800 Exception <a 'java/lang/OutOfMemoryError'> (0x000000008004efc8) thrown at [/HUDSON/workspace/8-2-build-linux-amd64/jdk8u131/8869/hotspot/src/share/vm/gc_interface/collectedHeap.inline.hpp, line 159]
Event: 31606.743 Thread 0x00007f9d10e37800 Exception <a 'java/lang/OutOfMemoryError'> (0x000000008004efc8) thrown at [/HUDSON/workspace/8-2-build-linux-amd64/jdk8u131/8869/hotspot/src/share/vm/gc_interface/collectedHeap.inline.hpp, line 159]
Event: 31606.743 Thread 0x00007f9d10e37800 Exception <a 'java/lang/OutOfMemoryError'> (0x000000008004f068) thrown at [/HUDSON/workspace/8-2-build-linux-amd64/jdk8u131/8869/hotspot/src/share/vm/runtime/deoptimization.cpp, line 790]

Events (10 events):
Event: 31590.147 Executing VM operation: G1CollectForAllocation done
Event: 31590.148 Executing VM operation: G1IncCollectionPause
Event: 31590.167 Executing VM operation: G1IncCollectionPause done
Event: 31590.167 Executing VM operation: G1IncCollectionPause
Event: 31590.175 Executing VM operation: G1IncCollectionPause done
Event: 31590.188 Executing VM operation: G1CollectForAllocation
Event: 31606.743 Executing VM operation: G1CollectForAllocation done
Event: 31606.743 Thread 0x00007f9d10e37800 DEOPT PACKING pc=0x00007f9d021831a8 sp=0x00007f9ce46b4f00
Event: 31606.743 Thread 0x00007f9d10e37800 DEOPT UNPACKING pc=0x00007f9d01047373 sp=0x00007f9ce46b4be0 mode 1
Event: 31606.749 Executing VM operation: G1IncCollectionPause
..

无法获取堆转储，因为代理实例在日志中记录以下消息后挂起

2020-08-07 00:17:32,835 WARNING [sun.rmi.transport.tcp] RMI TCP Accept-0: accept loop for ServerSocket[addr=localhost/127.0.0.1,localport=33088] throws: java.lang.OutOfMemoryError: Java heap space

2020-08-07 00:17:49,675 WARN  [org.apache.activemq.artemis.utils.actors.OrderedExecutor] Java heap space: java.lang.OutOfMemoryError: Java heap space
        at org.apache.activemq.artemis.core.paging.impl.Page.readMessage(Page.java:208) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.paging.cursor.impl.PageReader.getMessage(PageReader.java:94) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.paging.cursor.impl.PageSubscriptionImpl.internalGetNext(PageSubscriptionImpl.java:432) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.paging.cursor.impl.PageSubscriptionImpl.access$2200(PageSubscriptionImpl.java:67) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.paging.cursor.impl.PageSubscriptionImpl$CursorIterator.moveNext(PageSubscriptionImpl.java:1353) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.paging.cursor.impl.PageSubscriptionImpl$CursorIterator.next(PageSubscriptionImpl.java:1318) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.paging.cursor.impl.PageSubscriptionImpl$CursorIterator.tryNext(PageSubscriptionImpl.java:1445) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.paging.cursor.impl.PageSubscriptionImpl$CursorIterator.hasNext(PageSubscriptionImpl.java:1461) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.server.impl.QueueImpl.checkDepage(QueueImpl.java:2989) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.server.impl.QueueImpl.deliverAsync(QueueImpl.java:1243) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.server.impl.QueueImpl.deliverAsync(QueueImpl.java:1237) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.server.impl.ServerConsumerImpl.forceDelivery(ServerConsumerImpl.java:1154) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.server.impl.ServerConsumerImpl.promptDelivery(ServerConsumerImpl.java:1146) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.server.impl.ServerConsumerImpl.setStarted(ServerConsumerImpl.java:755) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.server.impl.ServerSessionImpl.setStarted(ServerSessionImpl.java:2013) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.server.impl.ServerSessionImpl.start(ServerSessionImpl.java:1667) [artemis-server-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.protocol.openwire.amq.AMQSession.start(AMQSession.java:269) [artemis-openwire-protocol-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.protocol.openwire.OpenWireConnection.addConsumer(OpenWireConnection.java:908) [artemis-openwire-protocol-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.protocol.openwire.OpenWireConnection$CommandProcessor.processAddConsumer(OpenWireConnection.java:1194) [artemis-openwire-protocol-2.13.0.jar:2.13.0]
        at org.apache.activemq.command.ConsumerInfo.visit(ConsumerInfo.java:351) [activemq-client-5.14.5.jar:5.14.5]
        at org.apache.activemq.artemis.core.protocol.openwire.OpenWireConnection.act(OpenWireConnection.java:322) [artemis-openwire-protocol-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.core.protocol.openwire.OpenWireConnection$$Lambda$124/267018299.onMessage(Unknown Source)
        at org.apache.activemq.artemis.utils.actors.Actor.doTask(Actor.java:33) [artemis-commons-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.utils.actors.ProcessorBase.executePendingTasks(ProcessorBase.java:65) [artemis-commons-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.utils.actors.ProcessorBase$$Lambda$35/656479172.run(Unknown Source)
        at org.apache.activemq.artemis.utils.actors.OrderedExecutor.doTask(OrderedExecutor.java:42) [artemis-commons-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.utils.actors.OrderedExecutor.doTask(OrderedExecutor.java:31) [artemis-commons-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.utils.actors.ProcessorBase.executePendingTasks(ProcessorBase.java:65) [artemis-commons-2.13.0.jar:2.13.0]
        at org.apache.activemq.artemis.utils.actors.ProcessorBase$$Lambda$35/656479172.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_131]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_131]
        at org.apache.activemq.artemis.utils.ActiveMQThreadFactory$1.run(ActiveMQThreadFactory.java:118) [artemis-commons-2.13.0.jar:2.13.0]

代理中的持久性标志为false。在xml中，堆问题只发生过一次。（正如上面提到的日志）

启用artemis。配置文件记录oom_heapdump。hprof没有记录任何信息，但线程转储信息异常。

下面的消息也经常在日志中被注意到。

2020-08-09 17:51:03,484 WARN  [org.apache.activemq.artemis.core.server] AMQ222038: Starting paging on address 'ActiveMQ.Advisory.TempQueue'; size is currently: 2,147,471,789 bytes; max-size-bytes: -1; global-size-bytes: 2,147,486,900

客户机（消费者）使用activemq-5.13客户机jar使用OPENWIRE。从代理控制台，生产者使用核心协议。

jvisualvm for Broker连续运行20小时

我使JAVA_ARGS能够打印生成的7GB文件的OOM跟踪，下面是使用Eclipse MAT工具进行的分析。

1.2g浅堆消耗由org.apache.activemq.artemis.core.paging.cursor.impl.PagePosistionImpl。

从文档中，当地址完整策略设置为PAGE时，时间代理开始追加到页面。其他值是DROP和BLOCK（阻止生产者，直到内存释放）。我计划使用地址完整策略来BLOCK，看看是否存在OOM问题。

Answer 1

连接Artemis代理的客户端使用OPENWIRE协议。默认情况下，建议队列处于启用状态。检查Open Wire文档链接。

TempQueue的问题是消息被添加到这个队列中，而没有被消耗。

最常被注意到的是在信息下方，每天的信息量约为150万条

AMQ222038: Starting paging on address 'ActiveMQ.Advisory.TempQueue'; size is currently: 2,147,398,989 bytes; max-size-bytes: -1; global-size-bytes: 2,147,495,495

和其他问题写入日志，其中页面写入失败。

使用“SupportDvisory=false”禁用咨询队列后；没有这样的例外。