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From "Billy Pearson" <sa...@pearsonwholesale.com>
Subject Unable to create RegionHistorian with NoServerForRegionException
Date Sun, 09 Nov 2008 01:29:55 GMT
working from trunk downloaded today
I get a bunch of these on start up and from shell after
Root Region is reported available even on same server as the root region

start up head from a RS:
2008-11-08 19:25:15,565 INFO org.apache.hadoop.ipc.Server: IPC Server 
handler 96 on 60020: starting
2008-11-08 19:25:15,565 INFO org.apache.hadoop.ipc.Server: IPC Server 
handler 99 on 60020: starting
2008-11-08 19:25:24,629 INFO 
org.apache.hadoop.hbase.regionserver.HRegionServer: MSG_REGION_OPEN: 
anchor,,1226175115963
2008-11-08 19:25:24,632 INFO 
org.apache.hadoop.hbase.regionserver.HRegionServer: MSG_REGION_OPEN: 
anchor,,1226175115963
2008-11-08 19:25:24,689 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:26,692 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:28,696 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:30,699 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:32,704 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:34,710 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:36,713 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:38,717 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:40,720 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:42,723 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:44,725 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Attempt 0 of 
10 failed with <org.apache.hadoop.hbase.client.NoServerForRegionException: 
Timed out trying to locate root region>. Retrying after sleep of 2000
2008-11-08 19:25:44,727 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:46,730 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:48,734 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:50,737 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:52,742 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:54,745 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:56,748 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:25:58,751 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:26:00,754 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:26:02,758 DEBUG 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Sleeping 
2000ms, waiting for root region.
2008-11-08 19:26:04,762 ERROR org.apache.hadoop.hbase.RegionHistorian: 
Unable to create RegionHistorian
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out trying 
to locate root region
        at 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRootRegion(HConnectionManager.java:793)
        at 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:439)
        at 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.relocateRegion(HConnectionManager.java:421)
        at 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:557)
        at 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:449)
        at 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:414)
        at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:113)
        at 
org.apache.hadoop.hbase.RegionHistorian.online(RegionHistorian.java:310)
        at 
org.apache.hadoop.hbase.regionserver.HRegionServer.openRegion(HRegionServer.java:970)
        at 
org.apache.hadoop.hbase.regionserver.HRegionServer$Worker.run(HRegionServer.java:901)
        at java.lang.Thread.run(Thread.java:619)



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