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Date: Thu, 28 Jul 2011 13:29:10 +0000 (UTC)
From: "ramkrishna.s.vasudevan (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
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Subject: [jira] [Commented] (HBASE-4138) If zookeeper.znode.parent is not
 specifed explicitly in Client code then HTable object loops continuously
 waiting for the root region by using /hbase as the base node.
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    [ https://issues.apache.org/jira/browse/HBASE-4138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13072336#comment-13072336 ] 

ramkrishna.s.vasudevan commented on HBASE-4138:
-----------------------------------------------

Uploaded patch once again as the ZookeeperWatcher.java got changed after i prepared the first patch. 

> If zookeeper.znode.parent is not specifed explicitly in Client code then HTable object loops continuously waiting for the root region by using /hbase as the base node.
> -----------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-4138
>                 URL: https://issues.apache.org/jira/browse/HBASE-4138
>             Project: HBase
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 0.90.3
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 0.92.0
>
>         Attachments: HBASE-4138_trunk_1.patch, HBASE-4138_trunk_2.patch
>
>
> Change the zookeeper.znode.parent property (default is /hbase).
> Now do not specify this change in the client code.
> Use the HTable Object.
> The HTable is not able to find the root region and keeps continuously looping.
> Find the stack trace:
> ====================
> Object.wait(long) line: not available [native method]		 
> RootRegionTracker(ZooKeeperNodeTracker).blockUntilAvailable(long) line: 122
> RootRegionTracker.waitRootRegionLocation(long) line: 73		 
> HConnectionManager$HConnectionImplementation.locateRegion(byte[],
> byte[], boolean) line: 578
> HConnectionManager$HConnectionImplementation.locateRegion(byte[],
> byte[]) line: 558
> HConnectionManager$HConnectionImplementation.locateRegionInMeta(byte[],
> byte[], byte[], boolean, Object) line: 687
> HConnectionManager$HConnectionImplementation.locateRegion(byte[],
> byte[], boolean) line: 589
> HConnectionManager$HConnectionImplementation.locateRegion(byte[],
> byte[]) line: 558
> HConnectionManager$HConnectionImplementation.locateRegionInMeta(byte[],
> byte[], byte[], boolean, Object) line: 687
> HConnectionManager$HConnectionImplementation.locateRegion(byte[],
> byte[], boolean) line: 593
> HConnectionManager$HConnectionImplementation.locateRegion(byte[],
> byte[]) line: 558
> HTable.<init>(Configuration, byte[]) line: 171		 
> HTable.<init>(Configuration, String) line: 145		 
> HBaseTest.test() line: 45

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