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Posted to issues@tez.apache.org by "László Bodor (Jira)" <ji...@apache.org> on 2020/10/05 15:08:00 UTC

[jira] [Updated] (TEZ-4238) Check null mrReader in MRInput.close

     [ https://issues.apache.org/jira/browse/TEZ-4238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

László Bodor updated TEZ-4238:
------------------------------
    Fix Version/s: 0.10.1

> Check null mrReader in MRInput.close
> ------------------------------------
>
>                 Key: TEZ-4238
>                 URL: https://issues.apache.org/jira/browse/TEZ-4238
>             Project: Apache Tez
>          Issue Type: Improvement
>            Reporter: László Bodor
>            Assignee: László Bodor
>            Priority: Major
>             Fix For: 0.10.1
>
>
> In HIVE-24207, an optimization is introduced on task side, where a task can exit quickly if it's needed according to an object cache value, which reflects the current records already pushed through the limit operator. 
> The AM side optimization will more likely be TEZ-2103 for this scenario.
> Early exit can cause uninitialized inputs, that's what this patch is meant to solve.



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