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Posted to issues@tez.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2017/04/27 20:17:04 UTC

[jira] [Updated] (TEZ-3701) UnorderedPartitionedKVWriter does not wait for submitted tasks to finish before finalMerge.

     [ https://issues.apache.org/jira/browse/TEZ-3701?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason Lowe updated TEZ-3701:
----------------------------
    Priority: Blocker  (was: Major)

Raising priority since any silent data corruption is catastrophically bad.  [~harishjp] could you elaborate on what versions are affected?  Was this a recently introduced bug or has this been a problem for some time?

> UnorderedPartitionedKVWriter does not wait for submitted tasks to finish before finalMerge.
> -------------------------------------------------------------------------------------------
>
>                 Key: TEZ-3701
>                 URL: https://issues.apache.org/jira/browse/TEZ-3701
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Harish Jaiprakash
>            Assignee: Harish Jaiprakash
>            Priority: Blocker
>
> UnorderedPartitionedKVWriter add task to the executor, but does not wait for them to finish before starting the final merge. This can cause finalMerge to fail or write incorrect data.



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