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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6469) Failure on enable/disable table will cause table state in zk to be left as enabling/disabling until master is restart
Date Fri, 08 Feb 2013 20:13:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13574779#comment-13574779
] 

Lars Hofhansl commented on HBASE-6469:
--------------------------------------

Hmm... That works too. What I had in mind is that instead of exposing a force flag, we can
detect whether this condition happened and act accordingly when enable is executed again.

Now, that would only work if the "acting accordingly" is free of side effects. If forcing
a table online is nothing we want to do lightly then it should be exposed explicitly.

                
> Failure on enable/disable table will cause table state in zk to be left as enabling/disabling
until master is restart
> ---------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-6469
>                 URL: https://issues.apache.org/jira/browse/HBASE-6469
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.94.2, 0.96.0
>            Reporter: Enis Soztutar
>            Assignee: Nick Dimiduk
>             Fix For: 0.96.0, 0.94.6
>
>         Attachments: 6469-expose-force-r3.patch, HBASE-6469.patch
>
>
> In Enable/DisableTableHandler code, if something goes wrong in handling, the table state
in zk is left as ENABLING / DISABLING. After that we cannot force any more action from the
API or CLI, and the only recovery path is restarting the master. 
> {code}
>     if (done) {
>       // Flip the table to enabled.
>       this.assignmentManager.getZKTable().setEnabledTable(
>         this.tableNameStr);
>       LOG.info("Table '" + this.tableNameStr
>       + "' was successfully enabled. Status: done=" + done);
>     } else {
>       LOG.warn("Table '" + this.tableNameStr
>       + "' wasn't successfully enabled. Status: done=" + done);
>     }
> {code}
> Here, if done is false, the table state is not changed. There is also no way to set skipTableStateCheck
from cli / api. 
> We have run into this issue a couple of times before. 

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