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https://issues.apache.org/jira/browse/HBASE-12?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12570413#action_12570413
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Jim Kellerman commented on HBASE-12:
------------------------------------

I like your latter suggestion:

> Bryan Duxbury - 19/Feb/08 12:02 PM
> I think we should add to the error message and describe possible causes and 
> resolutions.
> Something like "Check your DNS configuration so that all region servers are 
> reporting their true
> IPs and not 127.0.0.1. Otherwise, this problem will resolve itself in 
> ${lease-timeout} seconds."

But the region server should stay alive until lease timeout period expires and 
report for duty
again at that time.

> when hbase regionserver restarts, it says "impossible state for createLease()"
> ------------------------------------------------------------------------------
>
>                 Key: HBASE-12
>                 URL: https://issues.apache.org/jira/browse/HBASE-12
>             Project: Hadoop HBase
>          Issue Type: Bug
>          Components: regionserver
>            Reporter: Michael Bieniosek
>            Assignee: Jim Kellerman
>            Priority: Minor
>             Fix For: 0.2.0
>
>
> I restarted a regionserver, and got this error in its logs:
> org.apache.hadoop.ipc.RemoteException: java.io.IOException: 
> java.lang.AssertionError: Impossible state for createLease(): Lease 
> -435227488/-435227488 is still held.
>         at org.apache.hadoop.hbase.Leases.createLease(Leases.java:145)
>         at 
> org.apache.hadoop.hbase.HMaster.regionServerStartup(HMaster.java:1278
> )
>         at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>         at java.lang.reflect.Method.invoke(Unknown Source)
>         at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:379)
>         at org.apache.hadoop.ipc.Server$Handler.run(Server.java:596)
>         at org.apache.hadoop.ipc.Client.call(Client.java:482)
>         at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:184)
>         at $Proxy0.regionServerStartup(Unknown Source)
>         at 
> org.apache.hadoop.hbase.HRegionServer.reportForDuty(HRegionServer.jav
> a:1025)
>         at org.apache.hadoop.hbase.HRegionServer.run(HRegionServer.java:659)
>         at java.lang.Thread.run(Unknown Source)

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