Ted, With such a small snippet it's hard to tell ;)
Looks like that region server wasn't assigned with .META. but -ROOT- contains that address for that region. Look at the logs for when 1) the master assigns the region and 2) when the region server opens the region. In between I expect you should see some exceptions. You can also put your 2 logs somewhere and post a link here so someone can take a look at it. J-D On Wed, Mar 3, 2010 at 9:57 AM, Ted Yu <yuzhih...@gmail.com> wrote: > Previous attempt wasn't delivered. > > On Wed, Mar 3, 2010 at 9:30 AM, Ted Yu <yuzhih...@gmail.com> wrote: > >> Hi, >> I started hbase 0.20.3 successfully on my Linux VM. Master and regionserver >> are on the same VM. >> There're two empty tables. >> >> Soon I saw the following in regionserver.log: >> 2010-03-03 09:18:31,643 INFO [regionserver/10.10.30.104:60020] >> regionserver.StoreFile(241): Allocating LruBlockCache with maximum size 1.2g >> 2010-03-03 09:18:58,179 ERROR [IPC Server handler 1 on 60020] >> regionserver.HRegionServer(849): Failed openScanner >> org.apache.hadoop.hbase.NotServingRegionException: .META.,,1 >> at >> org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:2266) >> at >> org.apache.hadoop.hbase.regionserver.HRegionServer.openScanner(HRegionServer.java:1845) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> at java.lang.reflect.Method.invoke(Method.java:597) >> at >> org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:657) >> at >> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915) >> >> And this in master.log: >> 2010-03-03 09:18:58,196 WARN [RegionManager.metaScanner] >> master.MetaScanner(78): Scan one META region: {server: 10.10.30.104:60020, >> regionname: .META.,,1, startKey: <>} >> org.apache.hadoop.hbase.NotServingRegionException: >> org.apache.hadoop.hbase.NotServingRegionException: .META.,,1 >> at >> org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:2266) >> at >> org.apache.hadoop.hbase.regionserver.HRegionServer.openScanner(HRegionServer.java:1845) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> at java.lang.reflect.Method.invoke(Method.java:597) >> at >> org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:657) >> at >> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915) >> >> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native >> Method) >> >> Has anyone experienced similar issue ? >> >> Thanks >> >