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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6881) All regionservers are marked offline even there is still one up
Date Fri, 28 Sep 2012 20:32:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13465881#comment-13465881
] 

Jimmy Xiang commented on HBASE-6881:
------------------------------------

On the RB, Rajesh brought up a good point.  In case ServerNotRunningYetException, should we
just try another region server, instead of waiting till it is up? I think we should do our
best to use the same region server at first, because it could be a region server requested
by the user, or there is some locality issue.  What do you think?
                
> All regionservers are marked offline even there is still one up
> ---------------------------------------------------------------
>
>                 Key: HBASE-6881
>                 URL: https://issues.apache.org/jira/browse/HBASE-6881
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>         Attachments: trunk-6881.patch, trunk-6881_v3.patch
>
>
> {noformat}
> +        RegionPlan newPlan = plan;
> +        if (!regionAlreadyInTransitionException) {
> +          // Force a new plan and reassign. Will return null if no servers.
> +          newPlan = getRegionPlan(state, plan.getDestination(), true);
> +        }
> +        if (newPlan == null) {
>            this.timeoutMonitor.setAllRegionServersOffline(true);
>            LOG.warn("Unable to find a viable location to assign region " +
>              state.getRegion().getRegionNameAsString());
> {noformat}
> Here, when newPlan is null, plan.getDestination() could be up actually.

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