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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-2385) Debug Message "Received report from unknown server" should be INFO or WARN
Date Mon, 26 Apr 2010 17:29:35 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-2385:
-------------------------

    Fix Version/s: 0.20.5
                       (was: 0.20.4)

> Debug Message "Received report from unknown server" should be INFO or WARN
> --------------------------------------------------------------------------
>
>                 Key: HBASE-2385
>                 URL: https://issues.apache.org/jira/browse/HBASE-2385
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: master
>    Affects Versions: 0.20.3
>         Environment: Debian 6 / DNS with default mdns4
>            Reporter: Al Lias
>            Priority: Minor
>             Fix For: 0.20.5, 0.21.0
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> We had debian 6 installed with a HA-DNS that failed-over.
> As a result, the DNS resolution was wrong for a short moment and the master received
suddenly messages from "unknown" region servers:
> 2010-03-29 12:02:56,672 DEBUG org.apache.hadoop.hbase.master.ServerManager: Received
report from unknown server -- telling it to MSG_CALL_SERVER_STARTUP: 172.17.0.102,60020,1269856690485
> This happened in production mode: I think, it relativly critical thing that happened,
so a INFO or WARN logging level would have helped us much quicker to figure out the reason.

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