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Posted to issues@geode.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2020/11/05 18:46:00 UTC
[jira] [Commented] (GEODE-8537) Memory increases whenever LRU
eviction is enabled
[ https://issues.apache.org/jira/browse/GEODE-8537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17226923#comment-17226923 ]
ASF GitHub Bot commented on GEODE-8537:
---------------------------------------
gaussianrecurrence opened a new pull request #687:
URL: https://github.com/apache/geode-native/pull/687
- Whenever LRU eviction was enabled it was noted an slight increase in the memory usage.
Specifically in an scenario in which a set of entries are continously created and destroyed.
- Problem was that entries within LRUList where inserted but not removed until LRU
eviction happened and in the described case above, that was never.
- Solution was to replace the LRUList by a refactored version called LRUQueue and
also to remove the entries from the queue upon destroy or invalidation.
- Also a dead-lock between EvictionController and EvictionThread has been solved.
However this part is asking for a refactor.
- Unit tests have been added for the LRUQueue.
- Integration test have been added in the new integration test for the LRU eviction.
- Also a wrongly implemented LRU eviction test was removed from the old integration tests.
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> Memory increases whenever LRU eviction is enabled
> -------------------------------------------------
>
> Key: GEODE-8537
> URL: https://issues.apache.org/jira/browse/GEODE-8537
> Project: Geode
> Issue Type: Bug
> Components: native client
> Affects Versions: 1.13.0
> Reporter: Mario Salazar de Torres
> Assignee: Mario Salazar de Torres
> Priority: Major
> Attachments: massif-8419.png, massif.out.8419
>
>
> *HAVING* configured concurrency-checks-enabled=false in the client-cache.xml for a region
> *HAVING* configured heap-lru-limit=10 in the client-cache.xml for the region region
> *HAVING* configured heap-lru-delta=10 in the client-cache.xml for the region region
> *HAVING* configured subscription-notification for the pool on which the region is defined
> *HAVING* regsitered interest on all the keys of this region, values included
> *AFTER* receiving lots of LOCA_CREATE and LOCAL_DESTROY notifications
> *THEN* memory increases continously over time, even going over the LRU limit.
> Find massif tool report as massif.out.8419 showing the memory increase.
> Also this is a capture of massif-visualizer for the report:
> !massif-8419.png!
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