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https://issues.apache.org/jira/browse/HBASE-3431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12987334#action_12987334
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stack commented on HBASE-3431:
------------------------------
Up on IRC we just had case where RS was reporting hostname only but reverse
lookup was return FQDN.
> Regionserver is not using the name given it by the master; double entry in
> master listing of servers
> ----------------------------------------------------------------------------------------------------
>
> Key: HBASE-3431
> URL: https://issues.apache.org/jira/browse/HBASE-3431
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.90.0
> Reporter: stack
> Priority: Blocker
> Fix For: 0.90.1
>
> Attachments: 3431.txt
>
>
> Our man Ted Dunning found the following where RS checks in with one name, the
> master tells it use another name but we seem to go ahead and continue with
> our original name.
> In RS logs I see:
> {code}
> 2011-01-07 15:45:50,757 INFO
> org.apache.hadoop.hbase.regionserver.HRegionServer [regionserver60020]:
> Master passed us address to use. Was=perfnode11:60020, Now=10.10.30.11:60020
> {code}
> On master I see
> {code}
> 2011-01-07 15:45:38,613 INFO org.apache.hadoop.hbase.master.ServerManager
> [IPC Server handler 0 on 60000]: Registering
> server=10.10.30.11,60020,1294443935414, regionCount=0, userLoad=false
> {code}
> ....
> then later
> {code}
> 2011-01-07 15:45:44,247 INFO org.apache.hadoop.hbase.master.ServerManager
> [IPC Server handler 2 on 60000]: Registering
> server=perfnode11,60020,1294443935414, regionCount=0, userLoad=true
> {code}
> This might be since we started letting servers register in other than with
> the reportStartup.
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