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From "Gregory Chanan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6904) In the HBase shell, an error is thrown that states replication-related znodes already exist
Date Wed, 31 Oct 2012 21:57:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13488273#comment-13488273
] 

Gregory Chanan commented on HBASE-6904:
---------------------------------------

No, it's not a problem.  I think my above comments address your concerns:
{quote}This error log is unnecessary, because the code already throws an exception. The code
that calls it can just decide if it wants to reprint the error message or not by catching/rethrowing
the exception. I looked through the calls, which all originate in ZKUtil, and I think it's
fine to just bump this down to "info" level. All the calls in ZKUtil either rethrow the exception
or have semantics where getting a NodeExists exception is not a problem.{quote}
                
> In the HBase shell, an error is thrown that states replication-related znodes already
exist
> -------------------------------------------------------------------------------------------
>
>                 Key: HBASE-6904
>                 URL: https://issues.apache.org/jira/browse/HBASE-6904
>             Project: HBase
>          Issue Type: Bug
>          Components: Replication, Zookeeper
>    Affects Versions: 0.92.0, 0.92.1, 0.96.0
>            Reporter: Aleksandr Shulman
>            Assignee: Gregory Chanan
>            Priority: Minor
>             Fix For: 0.94.3, 0.96.0
>
>         Attachments: HBASE-6904-94.patch, HBASE-6904.patch
>
>
> On a replication-enabled cluster, querying the list_peers produces the error lines shown
below. It doesn't appear that anything is broken in terms of functionality.
> Stack trace:
> hbase(main):001:0> list_peers
> 12/09/29 14:41:03 ERROR zookeeper.RecoverableZooKeeper: Node /hbase/replication/peers
already exists and this is not a retry
> 12/09/29 14:41:03 ERROR zookeeper.RecoverableZooKeeper: Node /hbase/replication/rs already
exists and this is not a retry
> PEER ID CLUSTER KEY
> 0 row(s) in 0.4650 seconds

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