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https://issues.apache.org/jira/browse/PIG-5043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15583070#comment-15583070
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Rohini Palaniswamy edited comment on PIG-5043 at 10/17/16 6:46 PM:
-------------------------------------------------------------------

Changes done:
   - Config is set on  ShuffleVertexManager even if PARALLEL is specified so 
that slow start applies.
   - Reduced the amount of config set on 
ShuffleVertexManager/PigGraceShuffleVertexManager by only setting applicable 
settings. Reduced payload size is good for performance.

Also fixed two other issues
   - mapreduce.reduce.env was not being picked up and mapreduce.map.env was used
  - mapreduce.job.running.map.limit might be picked up instead of 
mapreduce.job.running.reduce.limit


was (Author: rohini):
Also fixed two other issues
   - mapreduce.reduce.env was not being picked up and mapreduce.map.env was used
  - mapreduce.job.running.map.limit might be picked up instead of 
mapreduce.job.running.reduce.limit

> Slowstart not applied in Tez with PARALLEL clause and auto parallelism not 
> applied for UnorderedPartitioned
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: PIG-5043
>                 URL: https://issues.apache.org/jira/browse/PIG-5043
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Rohini Palaniswamy
>            Assignee: Rohini Palaniswamy
>             Fix For: 0.17.0, 0.16.1
>
>         Attachments: PIG-5043-1.patch
>
>
> We enable auto parallelism only if there is no custom partiioner, but in case 
> of UnorderedPartitioned it always had RoundRobinPartitioner.
> VertexManager plugin configuration is not overridden if there is no auto 
> parallelism. So slow start settings are not applied.



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