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Posted to common-issues@hadoop.apache.org by "Jeff Hammerbacher (JIRA)" <ji...@apache.org> on 2010/08/13 02:46:16 UTC

[jira] Commented: (HADOOP-6915) Add daemon restart option

    [ https://issues.apache.org/jira/browse/HADOOP-6915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12898025#action_12898025 ] 

Jeff Hammerbacher commented on HADOOP-6915:
-------------------------------------------

In a magical world where ponies run free under rainbows, adding restart() as a method to HDFS-326 would be another way to tackle this sort of problem.

> Add daemon restart option
> -------------------------
>
>                 Key: HADOOP-6915
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6915
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: scripts
>            Reporter: Nicolas Spiegelberg
>            Priority: Minor
>             Fix For: 0.22.0, 0.20-append
>
>         Attachments: HADOOP-6915_0.20-append.patch, HADOOP-6915_0.22.patch
>
>
> With the addition of AvatarNode, we are working on a rolling restart option for upgrading a cluster.  It seems that a generic restart option would be useful for this purpose and perhaps other administrative tasks.  Add a 'restart' option to hadoop-daemon.sh and also modify 'slaves.sh' to run operations in parallel or serially.  

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