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https://issues.apache.org/jira/browse/TEZ-1489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14109472#comment-14109472
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Gopal V commented on TEZ-1489:
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The buffer is being cleared up correctly - but the unreserve() is not getting
called, so the internal check switches to Disk even though buffers are unused.
> Broadcast Shuffle should call freeResources() on FetchedInput
> -------------------------------------------------------------
>
> Key: TEZ-1489
> URL: https://issues.apache.org/jira/browse/TEZ-1489
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Gopal V
>
> BroadcastShuffle does not seem to free up the buffer space allocated by the
> FetchedInputs during the task runtime.
> SimpleFetchedInputAllocator::freeResources is never called as per my logging.
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