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Posted to dev@drill.apache.org by "Kunal Khatua (JIRA)" <ji...@apache.org> on 2018/06/07 19:13:00 UTC

[jira] [Created] (DRILL-6477) Drillbit hangs/crashes with OOME Java Heap Space for a large query through WebUI

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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