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Posted to dev@giraph.apache.org by "Maja Kabiljo (JIRA)" <ji...@apache.org> on 2015/03/19 18:50:39 UTC

[jira] [Updated] (GIRAPH-998) Close writers in parallel

     [ https://issues.apache.org/jira/browse/GIRAPH-998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Maja Kabiljo updated GIRAPH-998:
--------------------------------
    Attachment: GIRAPH-998.patch

> Close writers in parallel
> -------------------------
>
>                 Key: GIRAPH-998
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-998
>             Project: Giraph
>          Issue Type: Improvement
>            Reporter: Maja Kabiljo
>            Assignee: Maja Kabiljo
>            Priority: Minor
>         Attachments: GIRAPH-998.patch
>
>
> When thread-safe per superstep output is used, in the end of application we close all the writers in a single thread. Closing a writer can take time, and we are not reporting progress while doing so, so it happens that tasks timeout during this stage. Doing it in multiple threads and calling progress while doing it will make it faster and prevent tasks from timing out.



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