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Posted to issues@tez.apache.org by "Rajesh Balamohan (JIRA)" <ji...@apache.org> on 2017/07/21 04:59:02 UTC

[jira] [Commented] (TEZ-3802) Tez Shuffle Handler TezSpillRecord Cache hit rate is very low

    [ https://issues.apache.org/jira/browse/TEZ-3802?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16095782#comment-16095782 ] 

Rajesh Balamohan commented on TEZ-3802:
---------------------------------------

Hive in LLAP has its own shuffle handler. HIVE-16740 is on similar lines i believe.

> Tez Shuffle Handler TezSpillRecord Cache hit rate is very low
> -------------------------------------------------------------
>
>                 Key: TEZ-3802
>                 URL: https://issues.apache.org/jira/browse/TEZ-3802
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Jonathan Eagles
>
> TezSpillRecord Cache assumes that mapId query param is equal the the map attempt name. But it is actually has the spill record index
> attempt_1500002415313_1170497_1_00_026491_0_10023
> pathCache needs to be investigate to understand if it's affected as well.



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