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https://issues.apache.org/jira/browse/HIVE-23476?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prasanth Jayachandran reassigned HIVE-23476:
--------------------------------------------


> [LLAP] Preallocate arenas for mmap case as well
> -----------------------------------------------
>
>                 Key: HIVE-23476
>                 URL: https://issues.apache.org/jira/browse/HIVE-23476
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>            Priority: Major
>
> BuddyAllocator pre-allocation of arenas does not happen for mmap cache case. 
> Since we are not filling up the mmap'ed buffers the upfront allocations in 
> constructor is cheap. This can avoid lock free allocation of arenas later in 
> the code. 



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