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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-1779) Should we provide a way to know JobTracker's memory info from client?
Date Mon, 17 May 2010 04:07:43 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amareshwari Sriramadasu updated MAPREDUCE-1779:
-----------------------------------------------


Moving it to 0.22 as per Dhruba's comment.

bq. There are applications that are using this information currently exposed via the ClusterStatus
API? is there an alternative way to retrieving them?
Branch 0.21 does not have a way to get this memory information from clients.

> Should we provide a way to know JobTracker's memory info from client?
> ---------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1779
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1779
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client, jobtracker
>    Affects Versions: 0.21.0
>            Reporter: Amareshwari Sriramadasu
>            Priority: Blocker
>             Fix For: 0.22.0
>
>
> In HADOOP-4435, in branch 0.20, getClusterStatus() method returns JobTracker's used memory
and total memory.
> But these details are missed in new api (through MAPREDUCE-777).
> If these details are needed only for web UI, I don't think they are needed for client.
> So, should we provide a way to know JobTracker's memory info from client?
> If yes, an api should be added in org.apache.hadoop.mapreduce.Cluster for the same.

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