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From Jean-Daniel Cryans <jdcry...@apache.org>
Subject Re: region server appearing twice on HBase Master page
Date Thu, 11 Mar 2010 18:19:09 GMT
Bringing the discussion in hbase-user

That usually happens after a DNS hiccup. There's a fix for that in
https://issues.apache.org/jira/browse/HBASE-2174

J-D

On Wed, Mar 10, 2010 at 1:41 PM, Ted Yu <yuzhihong@gmail.com> wrote:
> I noticed two lines for the same region server on HBase Master page:
> X.com:60030    1268160765854    requests=0, regions=16, usedHeap=1068,
> maxHeap=6127
> X.com:60030    1268250726442    requests=21, regions=9, usedHeap=1258,
> maxHeap=6127
>
> I checked there is only one
> org.apache.hadoop.hbase.regionserver.HRegionServer instance running on that
> machine.
>
> This is from region server log:
>
> 2010-03-10 13:25:38,157 ERROR [IPC Server handler 43 on 60020]
> regionserver.HRegionServer(844):
> org.apache.hadoop.hbase.NotServingRegionException: ruletable,,1268083966723
>        at
> org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:2307)
>        at
> org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:1784)
>        at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
>        at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>        at java.lang.reflect.Method.invoke(Method.java:597)
>        at
> org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:648)
>        at
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
> 2010-03-10 13:25:38,189 ERROR [IPC Server handler 0 on 60020]
> regionserver.HRegionServer(844):
> org.apache.hadoop.hbase.NotServingRegionException: ruletable,,1268083966723
>        at
> org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:2307)
>        at
> org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:1784)
>        at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
>        at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>        at java.lang.reflect.Method.invoke(Method.java:597)
>        at
> org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:648)
>        at
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
>
> If you know how to troubleshoot, please share.
>

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