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https://issues.apache.org/jira/browse/KAFKA-4516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15735855#comment-15735855
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ASF GitHub Bot commented on KAFKA-4516:
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GitHub user dguy opened a pull request:
https://github.com/apache/kafka/pull/2235
KAFKA-4516: When a CachingStateStore is closed it should clear its
associated NamedCache
Clear and remove the NamedCache from the ThreadCache when a
CachingKeyValueStore or CachingWindowStore is closed.
Validate that the store is open when doing any queries or writes to Caching
State Stores.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dguy/kafka kafka-4516
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/2235.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2235
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commit cfb2bffe8492b2da1f7ec06796d66ae59b720175
Author: Damian Guy <[email protected]>
Date: 2016-12-09T17:31:19Z
clear caches when store is closed
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> When a CachingStateStore is closed it should clear its associated NamedCache.
> Subsequent queries should throw InvalidStateStoreException
> ----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-4516
> URL: https://issues.apache.org/jira/browse/KAFKA-4516
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 0.10.1.0
> Reporter: Damian Guy
> Assignee: Damian Guy
> Fix For: 0.10.2.0
>
>
> When close is called on a CachingStateStore we don't release the memory it is
> using in the Cache. This could result in the cache being full of data that is
> redundant. We also still allow queries on the CachedStateStore even though it
> has been closed.
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