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From "Matteo Bertozzi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-13606) AssignmentManager.assign() is not sync in both path
Date Fri, 01 May 2015 16:22:07 GMT

     [ https://issues.apache.org/jira/browse/HBASE-13606?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matteo Bertozzi updated HBASE-13606:
------------------------------------
    Attachment:     (was: HBASE-13606-v1.patch)

> AssignmentManager.assign() is not sync in both path
> ---------------------------------------------------
>
>                 Key: HBASE-13606
>                 URL: https://issues.apache.org/jira/browse/HBASE-13606
>             Project: HBase
>          Issue Type: Bug
>          Components: Region Assignment
>    Affects Versions: 2.0.0, 1.1.0, 1.2.0
>            Reporter: Matteo Bertozzi
>            Assignee: Matteo Bertozzi
>             Fix For: 2.0.0, 1.1.0, 1.2.0
>
>         Attachments: HBASE-13606-v0.patch, HBASE-13606-v1.patch
>
>
> from the comment and the expected behavior AssignmentManager.assign() should be sync
> {code}
> /** Assigns specified regions round robin, if any.
>  * This is a synchronous call and will return once every region has been
> public void assign(List<HRegionInfo> regions)
> {code}
> but the code has two path. 1 sync and the async
> {code}
> if (servers == 1 || (regions < bulkAssignThresholdRegions
>         && servers < bulkAssignThresholdServers)) {
>    for (HRegionInfo region: plan.getValue()) {
>      ...
>         invokeAssign(region);  // <-- this is async threadPool.submit(assign)
>      ...
>   }
> } else {
>   BulkAssigner ba = new GeneralBulkAssigner(...);
>   ba.bulkAssign();  // <-- this is sync, calls BulkAssign.waitUntilDone()
> }
> {code}
> https://builds.apache.org/job/HBase-1.1/452/ TestCreateTableProcedure is flaky because
of this async behavior



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