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https://issues.apache.org/jira/browse/TRANSACTION-33?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oliver Zeigermann resolved TRANSACTION-33.
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Resolution: Fixed
Patch committed to
https://svn.apache.org/repos/asf/commons/proper/transaction/branches/TRANSACTION_2
Thanks!
> Possible Memory Leak
> --------------------
>
> Key: TRANSACTION-33
> URL: https://issues.apache.org/jira/browse/TRANSACTION-33
> Project: Commons Transaction
> Issue Type: Bug
> Affects Versions: 2.0
> Environment: ubuntu hardy heron, tomcat, java 1.6
> Reporter: shishir sharma
> Assignee: Oliver Zeigermann
> Priority: Blocker
> Fix For: 2.0
>
> Attachments: CommonTransactions_2.0.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> I have been using 2.0 version of library available mainly for hierarchical
> locking issues. Apart from few other minor issues, it has been working pretty
> fine. I recently observed heap size issues with my environments and while
> investigating that I found that my piece of code using
> DefaultHierarchicalManager.java is among the top three heap consumers at that
> time.
> Upon analysing the heap a bit more (and going through the code of transaction
> 2.0), I found that we are not emptying a hashmap in RWLockManager.java. As a
> result, it holds onto references and corresponding objects are never garbage
> collected. Please review the following patch and let me know if it is ok or
> not.
> Thanks,
> Shishir
> toshishirsharma[AT]gmail[DOT]com
> ===== patch start =====
> diff -rub
> branches/TRANSACTION_2/src/java/org/apache/commons/transaction/locking/RWLockManager.java
>
> branches_mod/TRANSACTION_2/src/java/org/apache/commons/transaction/locking/RWLockManager.java
> ---
> branches/TRANSACTION_2/src/java/org/apache/commons/transaction/locking/RWLockManager.java
> 2009-09-01 20:05:29.000000000 -0500
> +++
> branches_mod/TRANSACTION_2/src/java/org/apache/commons/transaction/locking/RWLockManager.java
> 2009-09-01 21:13:35.000000000 -0500
> @@ -66,6 +66,7 @@
> removeUnsuedLocks();
> locksForThreads.remove(Thread.currentThread());
> + effectiveGlobalTimeouts.remove(Thread.currentThread());
> }
> protected void removeUnsuedLocks() {
> diff -rub
> branches/TRANSACTION_2/src/java/org/apache/commons/transaction/locking/SimpleLockManager.java
>
> branches_mod/TRANSACTION_2/src/java/org/apache/commons/transaction/locking/SimpleLockManager.java
> ---
> branches/TRANSACTION_2/src/java/org/apache/commons/transaction/locking/SimpleLockManager.java
> 2009-09-01 20:05:29.000000000 -0500
> +++
> branches_mod/TRANSACTION_2/src/java/org/apache/commons/transaction/locking/SimpleLockManager.java
> 2009-09-01 21:13:05.000000000 -0500
> @@ -108,6 +108,7 @@
> }
> locksForThreads.remove(Thread.currentThread());
> + effectiveGlobalTimeouts.remove(Thread.currentThread());
> }
> }
> ===== patch end =====
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