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From "stack (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5790) ZKUtil deleteRecursively should be a recoverable operation
Date Wed, 18 Apr 2012 19:50:40 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13256889#comment-13256889
] 

stack commented on HBASE-5790:
------------------------------

@Ted Its not a runtime requirement that client or ensemble be 3.4.x.  3.4.x client and ensemble
is required if you run secure hbase else its not necessary and we should be wary requiring
it; e.g. our ops didn't want to upgrade to 3.4.x ensemble just yet and so we run w/ a 3.4.x
client against 3.3.x ensemble.

@Jesse Sounds fine requiring 3.4.x in 0.96.  Want to raise a conversation out on mailing list?
                
> ZKUtil deleteRecursively should be a recoverable operation
> ----------------------------------------------------------
>
>                 Key: HBASE-5790
>                 URL: https://issues.apache.org/jira/browse/HBASE-5790
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Jesse Yates
>            Assignee: Jesse Yates
>              Labels: zookeeper
>             Fix For: 0.96.0, 0.94.1
>
>         Attachments: java_HBASE-5790-v1.patch, java_HBASE-5790.patch
>
>
> As of 3.4.3 Zookeeper now has full, multi-operation transaction. This means we can wholesale
delete chunks of the zk tree and ensure that we don't have any pesky recursive delete issues
where we delete the children of a node, but then a child joins before deletion of the parent.
Even without transactions, this should be the behavior, but it is possible to make it much
cleaner now that we have this new feature in zk.

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