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From "Rohini Palaniswamy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-4069) Limit reduce task should start as soon as one map task finishes
Date Mon, 10 Nov 2014 04:56:33 GMT

     [ https://issues.apache.org/jira/browse/PIG-4069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rohini Palaniswamy updated PIG-4069:
------------------------------------
    Status: Patch Available  (was: Open)

> Limit reduce task should start as soon as one map task finishes
> ---------------------------------------------------------------
>
>                 Key: PIG-4069
>                 URL: https://issues.apache.org/jira/browse/PIG-4069
>             Project: Pig
>          Issue Type: Sub-task
>          Components: tez
>            Reporter: Rohini Palaniswamy
>            Assignee: Rohini Palaniswamy
>             Fix For: 0.14.0
>
>         Attachments: PIG-4069-1.patch, PIG-4069-2.patch, PIG-4069-3.patch, PIG-4069-Tez_0_5_2.patch
>
>
>   Set very low values for ShuffleVertexManager.TEZ_AM_SHUFFLE_VERTEX_MANAGER_MIN_SRC_FRACTION
and ShuffleVertexManager.TEZ_AM_SHUFFLE_VERTEX_MANAGER_MAX_SRC_FRACTION in case of LIMIT job
not following an order by so that the reduce task starts as soon as 1 map task finishes.



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