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From "Amandeep Khurana (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-1672) Map tasks not local to RS
Date Sun, 19 Jul 2009 06:57:14 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1672?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amandeep Khurana updated HBASE-1672:
------------------------------------

    Description: 
The number of data local map tasks while scanning a table is only about 10% of the total map
tasks...
My table had 280 regions and 13M records... The number of map tasks in the scan job were equal
to the number of regions (280). Only 25 of them were data local tasks.

  was:The number of data local map tasks is only about 10% of the total map tasks...


> Map tasks not local to RS
> -------------------------
>
>                 Key: HBASE-1672
>                 URL: https://issues.apache.org/jira/browse/HBASE-1672
>             Project: Hadoop HBase
>          Issue Type: Bug
>          Components: mapred, master, regionserver
>    Affects Versions: 0.19.3
>         Environment: DN, TT and RS running on the same nodes.
>            Reporter: Amandeep Khurana
>
> The number of data local map tasks while scanning a table is only about 10% of the total
map tasks...
> My table had 280 regions and 13M records... The number of map tasks in the scan job were
equal to the number of regions (280). Only 25 of them were data local tasks.

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