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https://issues.apache.org/jira/browse/CURATOR-14?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13679994#comment-13679994
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Jordan Zimmerman commented on CURATOR-14:
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The pool is done via a Guava cache with weak values. So, the items in the cache
automatically expire. There's no need to have borrow/return semantics.
> Memory leak in Curator watches
> ------------------------------
>
> Key: CURATOR-14
> URL: https://issues.apache.org/jira/browse/CURATOR-14
> Project: Apache Curator
> Issue Type: New Feature
> Components: Recipes
> Affects Versions: 2.0.0-incubating
> Reporter: Brandon Beck
> Priority: Minor
> Attachments: CURATOR-14-draft-2.patch, CURATOR-14-draft-3.patch,
> CURATOR-14.patch, MemoryTest.java
>
>
> The JVM runs out of memory if you repetitively create a PathChildrenCache,
> start it then immediately stop it. It appears that the memory is taken up by
> a watch that isn't ever cleaned up. Curator attempts to do some pooling of
> watches, but doesn't seem to use the path in the pooling.
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