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Posted to dev@giraph.apache.org by "Nitay Joffe (JIRA)" <ji...@apache.org> on 2012/11/09 01:10:11 UTC

[jira] [Resolved] (GIRAPH-390) Observer for end of computation on Master

     [ https://issues.apache.org/jira/browse/GIRAPH-390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nitay Joffe resolved GIRAPH-390.
--------------------------------

    Resolution: Duplicate
    
> Observer for end of computation on Master
> -----------------------------------------
>
>                 Key: GIRAPH-390
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-390
>             Project: Giraph
>          Issue Type: Improvement
>            Reporter: Nitay Joffe
>            Assignee: Nitay Joffe
>         Attachments: GIRAPH-390-2.patch, GIRAPH-390.patch
>
>
> There is no way to run something on the master at the end of the application like in WorkerContext. This adds a MasterObserver which gets called at the end of the job by the master. The user can register as many MasterObservers as they like, allowing flexibility.
> I am using this to write the Hadoop counters to a database at the end of the job. As a part of this I also cleaned up the logic around those counters and made them more easily accessible by others.
> https://reviews.apache.org/r/7762/

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