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https://issues.apache.org/jira/browse/POOL-159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Thomas resolved POOL-159.
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Resolution: Fixed
With the POOL2 re-write, this was easy to implement.
> GenericObjectPool: Add a getNumWaiters() method for monitoring purposes
> -----------------------------------------------------------------------
>
> Key: POOL-159
> URL: https://issues.apache.org/jira/browse/POOL-159
> Project: Commons Pool
> Issue Type: Improvement
> Affects Versions: 1.5, 1.5.1, 1.5.2, 1.5.3, 1.5.4
> Reporter: Mike Muller
> Labels: monitoring
> Fix For: 2.0
>
>
> I would like to be able to determine the number of threads waiting to obtain
> an object from the pool for monitoring purposes. This would be most
> applicable when the WHEN_EXHAUSTED_BLOCK option is used. I propose the
> following method:
> /**
> * Return the number of threads currently waiting for an object from this
> pool.
> *
> * @return the number of threads currently waiting for an object from
> this pool
> */
> public synchronized int getNumWaiters() {
> return _allocateQueue.size();
> }
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