title: Java heap memory full with persistence enabled
body: <p>With persistence enabled in <code>broker.xml</code> and when <code>-Xms</code> &amp; <code>-Xmx</code> are set to 4GB and <code>global-max-size</code> set to default 200Mb (most of the setting were just created by the Artemis <code>create</code> command) I am getting the below exceptions either within a day or three based on the rate of data processed. Configuration is similar to <a href="https://stackoverflow.com/questions/63235169/apache-artemis-logs-amq212037-connection-failure-and-connection-reset-by-peer">this post</a>.</p>
  <pre><code>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
  
  </code></pre>
  <p>I was able to confirm the heap was 100%.</p>
  <pre><code>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.
  
  </code></pre>
  <p>Using Artemis version 2.13.0. VM is a 2 core Linux machine with 7 GB RAM. I had disabled the persistence. Also another observation is the RES size is growing gradually when I use the top command.</p>
  <p>Client configuration: (using camel and activeMq JMS component)</p>
  <pre><code>  &lt;bean id=&quot;conxnFactory&quot; class=&quot;org.apache.activemq.ActiveMQConnectionFactory&quot;&gt;
        &lt;property name=&quot;brokerURL&quot; value=&quot;tcp://domain-name:port&quot; /&gt;
      &lt;/bean&gt;
  
      &lt;bean id=&quot;pooledconxnFactory&quot; class=&quot;org.apache.activemq.pool.PooledConnectionFactory&quot; init-method=&quot;start&quot; destroy-method=&quot;stop&quot;&gt;
        &lt;property name=&quot;maxConnections&quot; value=&quot;5&quot; /&gt;
        &lt;property name=&quot;connectionFactory&quot; ref=&quot;conxnFactory&quot; /&gt;
      &lt;/bean&gt;
  
      &lt;bean id=&quot;config&quot; class=&quot;org.apache.camel.component.jms.JmsConfiguration&quot;&gt;
        &lt;property name=&quot;connectionFactory&quot; ref=&quot;pooledconxnFactory&quot; /&gt;
        &lt;property name=&quot;concurrentConsumers&quot; value=&quot;5&quot; /&gt;
      &lt;/bean&gt;
  
      &lt;bean id=&quot;jmsqueue&quot; class=&quot;org.apache.activemq.camel.component.ActiveMQComponent&quot;&gt;
        &lt;property name=&quot;configuration&quot; ref=&quot;config&quot; /&gt;
      &lt;/bean&gt;
      
      &lt;camelContext id=&quot;camel&quot; xmlns=&quot;http://camel.apache.org/schema/spring&quot;&gt;
        &lt;endpoint id=&quot;inputQueue&quot; uri=&quot;jmsqueue:queue:dataqueue1&quot; /&gt;
        
        &lt;route&gt;
          &lt;from uri=&quot;ref:inputQueue&quot; /&gt;
  ...
  </code></pre>
  <p>I was not able to get the heapdump, but there was a hs_err_pid file generated.</p>
  <pre><code>...
  Other Threads:
    0x00007f9d10282000 VMThread [stack: 0x00007f9d147a4000,0x00007f9d148a4000] [id=68249]
    0x00007f9d102d2800 WatcherThread [stack: 0x00007f9d00f00000,0x00007f9d01000000] [id=68257]
  
  =&gt;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 &lt;a 'java/lang/OutOfMemoryError'&gt; (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 &lt;a 'java/lang/OutOfMemoryError'&gt; (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 &lt;a 'java/lang/OutOfMemoryError'&gt; (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 &lt;a 'java/lang/OutOfMemoryError'&gt; (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 &lt;a 'java/lang/OutOfMemoryError'&gt; (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 &lt;a 'java/lang/OutOfMemoryError'&gt; (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 &lt;a 'java/lang/OutOfMemoryError'&gt; (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 &lt;a 'java/lang/OutOfMemoryError'&gt; (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 &lt;a 'java/lang/OutOfMemoryError'&gt; (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 &lt;a 'java/lang/OutOfMemoryError'&gt; (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
  ..
  </code></pre>
  Update:
  <p>Not able to get the heap dump, as the broker instance hangs after logging the below message in logs</p>
  <pre><code>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]
  </code></pre>
  <p>With the persistence flag as false in broker.xml, the heap issue occurred only once. (as mentioned the logs above)</p>
  <p>Enabling <code>artemis.profile</code> to log oom_heapdump.hprof didn't log any info but exception with Thread dump info.</p>
  <p>The below message is also noticed frequently in the logs.</p>
  <pre><code>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
  </code></pre>
  <p>The clients (consumer) uses OPENWIRE using activemq-5.13 client jar. From the broker console, the producer use CORE protocol.</p>
  <p>Jvisual VM for Broker running straight 20 hrs</p>
  <p><a href="https://i.stack.imgur.com/euwWm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/euwWm.png" alt="visualVM monitor" /></a></p>
  <p>I enabled the JAVA_ARGS to print the OOM trace a 7 GB file got generated, below is the analysis using Eclipse MAT tool.</p>
  <p><a href="https://i.stack.imgur.com/TkKcJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TkKcJ.png" alt="histogram of heap" /></a></p>
  <p>1.2G shallow heap consumption by <code>org.apache.activemq.artemis.core.paging.cursor.impl.PagePosistionImpl</code>.</p>
  <p>From the Docs, when address-full-policy is set to PAGE that is the time broker starts appending to page. Other values are DROP and BLOCK (blocks producer, until memory is freed). I planning to use address-full-policy to BLOCK to see if the OOM issue exists.</p>