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From "Prasanth Jayachandran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-16671) LLAP IO: BufferUnderflowException may happen in very rare(?) cases due to ORC end-of-CB estimation
Date Thu, 18 May 2017 08:40:04 GMT

    [ https://issues.apache.org/jira/browse/HIVE-16671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16015433#comment-16015433
] 

Prasanth Jayachandran commented on HIVE-16671:
----------------------------------------------

{code}
if (ix == 3) break; // Done, we have 3 bytes.
{code}

After this why are we moving on to next DiskRangeList? DiskRangeList will not be 1 or 2 byte
long right? If we can't read complete header in current DiskRangeList, worst case it will
be in next contiguous DiskRangeList. Am I missing something here?

Will be good to make it a separate method with tests (fake InStreams) if possible. 

> LLAP IO: BufferUnderflowException may happen in very rare(?) cases due to ORC end-of-CB
estimation
> --------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-16671
>                 URL: https://issues.apache.org/jira/browse/HIVE-16671
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Ravi Mutyala
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-16671.01.patch, HIVE-16671.patch
>
>




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