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https://issues.apache.org/jira/browse/LOG4J2-887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14291305#comment-14291305
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Ralph Goers commented on LOG4J2-887:
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Is there a log file or anything to help diagnose this problem? Although I am
sure this is related to the FlumeAppender, nothing has been provlded to
indicate that the problem is in the Appender and not in BerkeleyDB.
Also, a web search yields https://community.oracle.com/thread/3623927, which
looks to be the exact text of this problem so I assume you asked Oracle first.
Their response indicates that new environments are being created without the
previous environment being closed. Since the environment in the
FlumePersistentManager and the environment is closed when the Manager is
stopped I am having a hard time understanding how the FlumePersistentManager
could cause this.
Are you using a version of the changes you proposed for LOG4J2-714? If so, that
could likely cause this issue.
> There is a memory leak and Eclipse Memory analysis has flagged the instance
> “com.sleepycat.je.tx.SyncedLockManager
> -------------------------------------------------------------------------------------------------------------------
>
> Key: LOG4J2-887
> URL: https://issues.apache.org/jira/browse/LOG4J2-887
> Project: Log4j 2
> Issue Type: Bug
> Components: Flume Appender
> Affects Versions: 2.0-rc1
> Environment: PRODUCTION, Red Hat Linux 5
> Reporter: Avinash Dhananjay
> Priority: Blocker
>
> There is a memory leak and Eclipse Memory analysis has flagged the instance
> “com.sleepycat.je.tx.SyncedLockManager.
> Also, there are 308 ERRORs in thelog file, ERROR Caused by
> java.util.concurrent.RejectedExecutionException: null. Is one of the thread
> pools being exhausted?
> One instance of "com.sleepycat.je.txn.SyncedLockManager" loaded
> by"org.jboss.classloader.spi.base.BaseClassLoader @ 0x732e868e8"
> occupies33,555,808 (12.79%) bytes. The memory is accumulated in one instance
> of"java.util.HashMap$Entry[]" loaded by "<system class loader>".
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