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https://issues.apache.org/jira/browse/HIVE-16237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Shelukhin resolved HIVE-16237.
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Resolution: Duplicate
dup of HIVE-16233
> BuddyAllocator fragmentation - long-term fix
> --------------------------------------------
>
> Key: HIVE-16237
> URL: https://issues.apache.org/jira/browse/HIVE-16237
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
>
> We were initially planning to write a different allocator with compaction,
> but now we are stuck with buddyallocator.
> There are two approaches - compaction on top of buddy allocator (should be
> fairly simple actually, aside from indirection... luckily for the latter, we
> can take the buffer out in most places and we can reuse the existing
> locking-to-prevent-eviction mechanism to also prevent reallocation); or
> writing a better allocator. Probably the former is preferred, need to think
> about the latter.
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