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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7847) Use zookeeper multi to clear znodes
Date Wed, 12 Mar 2014 18:48:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13932173#comment-13932173
] 

stack commented on HBASE-7847:
------------------------------

This patch seems unrelated to:

{code}
  <property>
    <name>hbase.zookeeper.useMulti</name>
    <value>false</value>
    <description>Instructs HBase to make use of ZooKeeper's multi-update functionality.
    This allows certain ZooKeeper operations to complete more quickly and prevents some issues
    with rare Replication failure scenarios (see the release note of HBASE-2611 for an example).
    IMPORTANT: only set this to true if all ZooKeeper servers in the cluster are on version
3.4+
    and will not be downgraded.  ZooKeeper versions before 3.4 do not support multi-update
and
    will not fail gracefully if multi-update is invoked (see ZOOKEEPER-1495).</description>
  </property>
{code}

It should be related?

> Use zookeeper multi to clear znodes
> -----------------------------------
>
>                 Key: HBASE-7847
>                 URL: https://issues.apache.org/jira/browse/HBASE-7847
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Ted Yu
>         Attachments: 7847-v1.txt, HBASE-7847.patch
>
>
> In ZKProcedureUtil, clearChildZNodes() and clearZNodes(String procedureName) should utilize
zookeeper multi so that they're atomic



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