hadoop-common-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4350) Ability to pause/resume jobs
Date Thu, 09 Oct 2008 06:50:46 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12638201#action_12638201
] 

dhruba borthakur commented on HADOOP-4350:
------------------------------------------

We would definitely like to use the feature to pause all current jobs. Typically before the
start of a scheduled HDFS maintainence window. This is, in some sense, similar to the "safemode"
of HDFS.


> Ability to pause/resume jobs
> ----------------------------
>
>                 Key: HADOOP-4350
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4350
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: mapred
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>         Attachments: HADOOP-4350-v1.2.patch, HADOOP-4350-v1.3.patch
>
>
> Consider a case where the user job depends on some external entity/service like a database
or a web service. If the service needs restart or encounters a failure, the user should be
able to pause the job and resume only when the service is up. This will be better than re-executing
the whole job. Hence there should be some way to pause/resume jobs (from web-ui/command line)
etc.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message