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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11531) RegionStates for regions under region-in-transition znode are not updated on startup
Date Thu, 17 Jul 2014 16:59:05 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14065129#comment-14065129

Jimmy Xiang commented on HBASE-11531:

bq. I set hbase.assignment.usezk = true and hbase.assignment.usezk.migrating=true 
So you are trying to migrate from usezk = true to usezk = false. In the second phase of the
migration, you'd better restart the master at the end, not in the middle.

bq. Timedout waiting for namespace table to be assigned
The namespace table is in transition before you restarted the master? It's fine for namespace
table to be timed-out. SSH should fix it later.

bq. Somehow the master UI also doesn't show up.
Are you running branch-1/master code? If so, the master UI should show up really quick now,
even before meta is assigned.

bq.  I thought the region state should change from PENDING_OPEN to OPEN as the region is actually
In this case, the region state can be better. But this is ok (applications can still locate
the region and access it). This mismatch is in-mem and transient. It happens only during the
migration. After the region server is restarted/migrated, the state will be fixed by SSH.

> RegionStates for regions under region-in-transition znode are not updated on startup
> ------------------------------------------------------------------------------------
>                 Key: HBASE-11531
>                 URL: https://issues.apache.org/jira/browse/HBASE-11531
>             Project: HBase
>          Issue Type: Bug
>          Components: Region Assignment
>    Affects Versions: 0.99.0
>            Reporter: Virag Kothari
>         Attachments: sample.patch
> While testing HBASE-11059, saw that if there are regions under region-in-transition znode
their states are not updated in META and master memory on startup.

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