Alex Rudyy created QPID-6539:
--------------------------------
Summary: [Java Broker] ConcurrentModificationException can occur
in StandardEnvironmentFacadeFactory.buildEnvironmentConfiguration on BDB VH
start-up causing the ERRORED state of the object
Key: QPID-6539
URL: https://issues.apache.org/jira/browse/QPID-6539
Project: Qpid
Issue Type: Bug
Affects Versions: 0.32, 0.30, 0.28, 0.26, 0.24, 0.22
Reporter: Alex Rudyy
Assignee: Alex Rudyy
Fix For: 6.0 [Java]
On a number of broker startups ConcurrentModificationException was thrown from
StandardEnvironmentFacadeFactory.buildEnvironmentConfiguration in sporadic
manner. In result of it, the affected VH fails to start and transits into
ERRORED state.
The exception stack trace is below
{noformat}
java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:922)
at java.util.HashMap$ValueIterator.next(HashMap.java:950)
at
org.apache.qpid.server.store.berkeleydb.StandardEnvironmentFacadeFactory.buildEnvironmentConfiguration(StandardEnvironmentFacadeFactory.java:71)
at
org.apache.qpid.server.store.berkeleydb.StandardEnvironmentFacadeFactory.access$000(StandardEnvironmentFacadeFactory.java:34)
at
org.apache.qpid.server.store.berkeleydb.StandardEnvironmentFacadeFactory$1.getParameters(StandardEnvironmentFacadeFactory.java:60)
at
org.apache.qpid.server.store.berkeleydb.StandardEnvironmentFacade.<init>(StandardEnvironmentFacade.java:86)
at
org.apache.qpid.server.store.berkeleydb.StandardEnvironmentFacadeFactory.createEnvironmentFacade(StandardEnvironmentFacadeFactory.java:64)
at
org.apache.qpid.server.store.berkeleydb.BDBMessageStore.openMessageStore(BDBMessageStore.java:80)
at
org.apache.qpid.server.virtualhost.AbstractVirtualHost.onActivate(AbstractVirtualHost.java:1616)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.apache.qpid.server.model.AbstractConfiguredObject.attainState(AbstractConfiguredObject.java:1165)
at
org.apache.qpid.server.model.AbstractConfiguredObject$7.run(AbstractConfiguredObject.java:812)
at
org.apache.qpid.server.model.AbstractConfiguredObject$ChildCounter.decrementCount(AbstractConfiguredObject.java:564)
at
org.apache.qpid.server.model.AbstractConfiguredObject.doAttainState(AbstractConfiguredObject.java:878)
at
org.apache.qpid.server.model.AbstractConfiguredObject.access$300(AbstractConfiguredObject.java:88)
at
org.apache.qpid.server.model.AbstractConfiguredObject$1.call(AbstractConfiguredObject.java:476)
at
org.apache.qpid.server.model.AbstractConfiguredObject$1.call(AbstractConfiguredObject.java:463)
at
org.apache.qpid.server.model.AbstractConfiguredObject$2.execute(AbstractConfiguredObject.java:506)
at
org.apache.qpid.server.model.AbstractConfiguredObject$2.execute(AbstractConfiguredObject.java:499)
at
org.apache.qpid.server.configuration.updater.TaskExecutorImpl.executeTask(TaskExecutorImpl.java:318)
at
org.apache.qpid.server.configuration.updater.TaskExecutorImpl.access$600(TaskExecutorImpl.java:45)
at
org.apache.qpid.server.configuration.updater.TaskExecutorImpl$CallableWrapper$1.run(TaskExecutorImpl.java:346)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:356)
at
org.apache.qpid.server.configuration.updater.TaskExecutorImpl$CallableWrapper.call(TaskExecutorImpl.java:341)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
{noformat}
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