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From "Sergey Shelukhin (JIRA)" <>
Subject [jira] [Assigned] (HIVE-20247) cleanup issues in LLAP IO after cache OOM
Date Thu, 26 Jul 2018 22:48:00 GMT


Sergey Shelukhin reassigned HIVE-20247:

> cleanup issues in LLAP IO after cache OOM
> -----------------------------------------
>                 Key: HIVE-20247
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Prasanth Jayachandran
>            Assignee: Sergey Shelukhin
>            Priority: Major
> LLAP IO creates unallocated buffer objects inside the read-related data structures, then
allocates them in bulk, then decompresses into them and increfs them.
> If allocate or decompress steps fail, it's hard for the higher-level cleanup to tell
what the state of the buffers in the read-related structures is - they may be unallocated,
allocated but not incref-ed, or incref-ed.
> Some cleanup paths only deal with the latter case, resulting in bugs.
> This only happens on one paths, others allocate and use buffers in a single place.

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