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https://issues.apache.org/jira/browse/HADOOP-2848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12579818#action_12579818
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Vinod Kumar Vavilapalli commented on HADOOP-2848:
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Some problems:
* allocate a cluster, delete the cluster directory and then create the
directory. hod list again shows nothing. What should be the behaviour here?
* allocate a cluster, delete the cluster directory, create the directory and
then use the same directory for another allocation. The second allocation goes
through without fuss and the first allocation still runs without the user
knowing it. Here, I guess, we definitely need some fix.
Other than that, a very minor thing : deallocating such clusters says "Invalid
cluster directory '<cluster-id>' specified. Deleted cluster with cluster id
<cluster-id>". 'Deleting cluster' here looked a bit confusing to me on the
first look, could it be something like 'freed up' or 'removed from queue'?
> [HOD] If a cluster directory is deleted, hod -o list must show it, and
> deallocate should work.
> ----------------------------------------------------------------------------------------------
>
> Key: HADOOP-2848
> URL: https://issues.apache.org/jira/browse/HADOOP-2848
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/hod
> Affects Versions: 0.16.0
> Reporter: Hemanth Yamijala
> Assignee: Hemanth Yamijala
> Fix For: 0.17.0
>
> Attachments: 2848.patch
>
>
> Currently if the cluster directory is deleted, all state about the cluster is
> lost. While this in itself is not a problem, at least recovery in the sense
> of being able to list the torque job id and deallocation to clear up the
> nodes should happen correctly.
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