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From "Gopal V (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14172) LLAP: force evict blocks by size to handle memory fragmentation
Date Wed, 13 Jul 2016 20:04:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15375643#comment-15375643
] 

Gopal V commented on HIVE-14172:
--------------------------------

LGTM - +1.

> LLAP: force evict blocks by size to handle memory fragmentation
> ---------------------------------------------------------------
>
>                 Key: HIVE-14172
>                 URL: https://issues.apache.org/jira/browse/HIVE-14172
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Nita Dembla
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-14172.01.patch, HIVE-14172.patch
>
>
> In the long run, we should replace buddy allocator with a better scheme. For now do a
workaround for fragmentation that cannot be easily resolved. It's still not perfect but works
for practical  ORC cases, where we have the default size and smaller blocks, rather than large
allocations having trouble.



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