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From "Chris Westin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-2878) FragmentExecutor.closeOutResources() is not called if an exception happens in the Foreman before the fragment executor starts running
Date Mon, 04 May 2015 22:03:06 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Westin updated DRILL-2878:
--------------------------------
    Fix Version/s: 1.0.0

> FragmentExecutor.closeOutResources() is not called if an exception happens in the Foreman
before the fragment executor starts running
> -------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DRILL-2878
>                 URL: https://issues.apache.org/jira/browse/DRILL-2878
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - Flow
>            Reporter: Deneche A. Hakim
>            Assignee: Chris Westin
>             Fix For: 1.0.0
>
>
> When the Foreman sets up the root FragmentExecutor and it needs to wait for data from
the remote fragments, the fragment manager is recorded in the work bus and the root fragment
executor is not run immediately.
> If an exception happens in the Foreman while setting up the remote fragments, the Foreman
cancels all fragments and returns a FAILED message to the client.
> Because the root fragment executor was not run it will never call it's closeOutResources()
method and it's fragment context will never be closed.
> You can easily reproduce this by running the following unit test:
> {noformat}
> org.apache.drill.exec.server.TestDrillbitResilience#failsWhenSendingFragments
> {noformat}
> although the test passes successfully because Drill does report the correct failure to
the client, the memory leak is not detected and will show up after the test finishes



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