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Posted to dev@pig.apache.org by "Rohini Palaniswamy (JIRA)" <ji...@apache.org> on 2017/05/24 23:04:07 UTC

[jira] [Updated] (PIG-4249) Size estimation should be done in sampler instead of sample aggregator

     [ https://issues.apache.org/jira/browse/PIG-4249?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rohini Palaniswamy updated PIG-4249:
------------------------------------
    Fix Version/s:     (was: 0.17.0)
                   0.18.0

> Size estimation should be done in sampler instead of sample aggregator
> ----------------------------------------------------------------------
>
>                 Key: PIG-4249
>                 URL: https://issues.apache.org/jira/browse/PIG-4249
>             Project: Pig
>          Issue Type: Sub-task
>          Components: tez
>            Reporter: Rohini Palaniswamy
>             Fix For: 0.18.0
>
>
> https://reviews.apache.org/r/21302/ comments on Revision 8 - size estimation is done in sample aggregator for order by to keep it same as skewed join but this can have performance implication if the tuple sizes are big.



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