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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4451) Improve zk node naming (/hbase/shutdown)
Date Thu, 17 Jan 2013 03:16:24 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13555795#comment-13555795

Hudson commented on HBASE-4451:

Integrated in HBase-TRUNK-on-Hadoop-2.0.0 #351 (See [https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-2.0.0/351/])
    HBASE-4451 Improve zk node naming (/hbase/shutdown) (Revision 1434101)

     Result = FAILURE
stack : 
Files : 
* /hbase/trunk/hbase-protocol/src/main/protobuf/ZooKeeper.proto
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/zookeeper/ZooKeeperWatcher.java

> Improve zk node naming (/hbase/shutdown)
> ----------------------------------------
>                 Key: HBASE-4451
>                 URL: https://issues.apache.org/jira/browse/HBASE-4451
>             Project: HBase
>          Issue Type: Improvement
>          Components: master
>    Affects Versions: 0.94.0
>            Reporter: Harsh J
>            Assignee: Devaraj Das
>            Priority: Critical
>              Labels: noob
>             Fix For: 0.96.0
>         Attachments: 4451-1.patch
> Right now the node {{/hbase/shutdown}} is used to indicate cluster status (cluster up,
cluster down).
> However, upon a chat with Lars George today, we feel that having a name {{/hbase/shutdown}}
is possibly bad. The {{/hbase/shutdown}} zknode contains a date when the cluster was _started_.
Now that is difficult to understand and digest, given that a person may connect to zk and
try to look at what it is about (they may think it 'shutdown' at that date.).
> I feel a better name may simply be: {{/hbase/running}}. Thoughts?

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