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https://issues.apache.org/jira/browse/CALCITE-1169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15285192#comment-15285192
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Julian Hyde commented on CALCITE-1169:
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It's possible that DRILL-4678 is related. A quadratic algorithm (if indeed that
is the cause of 4678) might cause quadratic memory to be used by the cache,
hence excessive memory use.
> Memory leak caused by CALCITE-604 and CALCITE-1147
> --------------------------------------------------
>
> Key: CALCITE-1169
> URL: https://issues.apache.org/jira/browse/CALCITE-1169
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.7.0
> Reporter: Maryann Xue
> Assignee: Julian Hyde
>
> It might be easier to reproduce this with an IDE environment. If I try
> running CalciteIT in Calcite-Phoenix in eclipse, it would usually crash after
> the first 3 - 4 test cases because of OOM.
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