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https://issues.apache.org/jira/browse/TAJO-1713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14642668#comment-14642668
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ASF GitHub Bot commented on TAJO-1713:
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Github user jihoonson commented on the pull request:
https://github.com/apache/tajo/pull/654#issuecomment-125191306
It is enough for tests. According to my experience, the cache size is
increased up to about 120 entries while inner joining 5 tables. So, I think it
is enough to set the max cache size as 100 during tests.
> Change the type of edge cache in JoinGraphContext from HashMap to LRUMap
> ------------------------------------------------------------------------
>
> Key: TAJO-1713
> URL: https://issues.apache.org/jira/browse/TAJO-1713
> Project: Tajo
> Issue Type: Task
> Components: Planner/Optimizer
> Reporter: Jihoon Son
> Fix For: 0.11.0
>
>
> Since the current implementation using HashMap involves the potential OOM
> with a lot of join tables. We should prevent it.
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