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https://issues.apache.org/jira/browse/CALCITE-1550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chunhui Shi updated CALCITE-1550:
---------------------------------
Priority: Major (was: Critical)
> ConventionTraitDef.plannerConversionMap is not thread safe
> ----------------------------------------------------------
>
> Key: CALCITE-1550
> URL: https://issues.apache.org/jira/browse/CALCITE-1550
> Project: Calcite
> Issue Type: Bug
> Reporter: Chunhui Shi
> Assignee: Julian Hyde
>
> We are using static instance ConventionTraitDef.INSTANCE globally and
> plannerConversionMap(class WeakHashMap) defined in ConventionTraitDef class
> is not threadsafe. And the data in the map could corrupt and cause dead loop
> or other data error.
> private final WeakHashMap<RelOptPlanner, ConversionData>
> plannerConversionMap =
> new WeakHashMap<RelOptPlanner, ConversionData>();
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