ConcurrentModificationException in high volume broker
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Key: AMQ-1971
URL: https://issues.apache.org/activemq/browse/AMQ-1971
Project: ActiveMQ
Issue Type: Bug
Components: Broker
Affects Versions: 5.2.0
Reporter: Jayson Minard
This is occurring in the thousands as messages come through. We have a
network of 5 brokers although they do most of their work internally
(publisher/consumer for queue are only on same broker) and do less work
crossing to a central broker.
java.util.ConcurrentModificationException
at
java.util.LinkedHashMap$LinkedHashIterator.nextEntry(LinkedHashMap.java:373)
at java.util.LinkedHashMap$EntryIterator.next(LinkedHashMap.java:392)
at java.util.LinkedHashMap$EntryIterator.next(LinkedHashMap.java:391)
at
org.apache.activemq.broker.region.cursors.AbstractStoreCursor.next(AbstractStoreCursor.java:136)
at
org.apache.activemq.broker.region.cursors.StoreQueueCursor.next(StoreQueueCursor.java:140)
at org.apache.activemq.broker.region.Queue.doPageIn(Queue.java:1178)
at
org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:1290)
at org.apache.activemq.broker.region.Queue.iterate(Queue.java:1004)
at
org.apache.activemq.thread.DeterministicTaskRunner.runTask(DeterministicTaskRunner.java:84)
at
org.apache.activemq.thread.DeterministicTaskRunner$1.run(DeterministicTaskRunner.java:41)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
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