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From "Kunal Khatua (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-6477) Drillbit hangs/crashes with OOME Java Heap Space for a large query through WebUI
Date Thu, 07 Jun 2018 19:13:00 GMT
Kunal Khatua created DRILL-6477:
-----------------------------------

             Summary: Drillbit hangs/crashes with OOME Java Heap Space for a large query through
WebUI
                 Key: DRILL-6477
                 URL: https://issues.apache.org/jira/browse/DRILL-6477
             Project: Apache Drill
          Issue Type: Bug
          Components: Web Server
    Affects Versions: 1.13.0
            Reporter: Kunal Khatua
            Assignee: Kunal Khatua
             Fix For: 1.14.0


For queries submitted through the WebUI and retrieving a large resultset, the Drillbit often
hangs or crashes due to the (foreman) Drillbit running out of Heap memory.

This is because the Web client translates the resultset into a massive object in the heap-space
and tries to send that back to the browser. This results in the VM thread actively trying
to perform GC if the memory is not sufficient.

 



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