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Posted to issues@drill.apache.org by "Chunhui Shi (JIRA)" <ji...@apache.org> on 2016/12/22 01:02:43 UTC

[jira] [Updated] (DRILL-5151) ConventionTraitDef.plannerConversionMap is not thread safe

     [ https://issues.apache.org/jira/browse/DRILL-5151?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chunhui Shi updated DRILL-5151:
-------------------------------
    Priority: Major  (was: Critical)

> ConventionTraitDef.plannerConversionMap is not thread safe
> ----------------------------------------------------------
>
>                 Key: DRILL-5151
>                 URL: https://issues.apache.org/jira/browse/DRILL-5151
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Query Planning & Optimization
>            Reporter: Chunhui Shi
>            Assignee: Chunhui Shi
>
> 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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