[jira] [Resolved] (DRILL-2847) DrillBufs from the RPC layer are being leaked

["Jacques Nadeau (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-2847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jacques Nadeau resolved DRILL-2847.
-----------------------------------
    Resolution: Fixed

Resolved in 0dd0e83

> DrillBufs from the RPC layer are being leaked
> ---------------------------------------------
>
>                 Key: DRILL-2847
>                 URL: https://issues.apache.org/jira/browse/DRILL-2847
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - Flow, Execution - RPC
>    Affects Versions: 0.9.0
>            Reporter: Chris Westin
>            Assignee: Jacques Nadeau
>             Fix For: 1.0.0
>
>         Attachments: DRILL-2847-bug.2.patch.txt, DRILL-2847-bug.patch.txt, drill-mem.log
>
>
> I've created a patch that demonstrates this. In the patch, code is added to UnsafeDirectLittleEndian to track all the instances of that class that are created (which happens when buffers are allocated inside TopLevelAllocator). release() is overridden to remove these from the tracked list when they are released. An @After action is added to TestTpchDistributed which checks on the count of outstanding buffers. If the test is run, every case fails, and each failure shows a progressively larger and larger number of outstanding buffers. There are no complaints from the allocator.



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