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From "Jean-Daniel Cryans" <jdcry...@apache.org>
Subject Re: HBase with hdfs
Date Mon, 20 Oct 2008 13:11:07 GMT
Oh! Well I'm happy that it works for you now!

J-D

On Mon, Oct 20, 2008 at 5:50 AM, rathi <riteshrathi@gmail.com> wrote:

> J-D,
>
> Yes it did solve the problem. I had not created the HBase directory. In my
> configuration hdfs root and hbase roots were same. Because the hdfs root
> gets created on Hadoop startup i.e. before HBase startup this problem
> occurs.
>
> Thanks for the solution.
>
> rathi
>
> On Sun, Oct 19, 2008 at 8:01 PM, Jean-Daniel Cryans <jdcryans@apache.org
> >wrote:
>
> > rathi,
> >
> > Did you create the /hbase folder before starting HBase? If yes, IIRC
> there
> > is a problem with that so delete it and it should be fine.
> >
> > J-D
> >
> > On Sat, Oct 18, 2008 at 12:49 PM, rathi <riteshrathi@gmail.com> wrote:
> >
> > > On further analysis it seems the VERSION_FILE_NAME which the HBase gets
> > > from
> > > hdfs is NULL. HDFS is running fine but dont know why the version is
> > > returned
> > > as NULL.
> > >
> > > rathi
> > >
> > >
> > >
> > >
> > > On Sat, Oct 18, 2008 at 6:12 PM, rathi <riteshrathi@gmail.com> wrote:
> > >
> > > > Hadoop Version : hadoop-0.18.0
> > > > HBase Version : hbase-0.18.0
> > > >
> > > > I am doing a fresh start of hadoop and hbase. Hadoop starts properly
> > but
> > > > when I try to start hbase it quits with the below given exception.
> > > >
> > > > 2008-10-18 17:27:10,990 INFO org.apache.hadoop.hbase.master.HMaster:
> > Root
> > > > region dir: hdfs://172.16.1.191:10000/-ROOT-/70236052
> > > > 2008-10-18 17:27:11,197 FATAL org.apache.hadoop.hbase.master.HMaster:
> > Not
> > > > starting HMaster because:
> > > > org.apache.hadoop.hbase.util.FileSystemVersionException: File system
> > > needs
> > > > to be upgraded. Run the '${HBASE_HOME}/bin/hbase migrate' script.
> > > >         at
> > > > org.apache.hadoop.hbase.util.FSUtils.checkVersion(FSUtils.java:131)
> > > >         at
> > > org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:203)
> > > >         at
> > > org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:147)
> > > >         at
> > sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> > > > Method)
> > > >         at
> > > >
> > >
> >
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> > > >         at
> > > >
> > >
> >
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> > > >         at
> > > java.lang.reflect.Constructor.newInstance(Constructor.java:494)
> > > >         at
> > > org.apache.hadoop.hbase.master.HMaster.doMain(HMaster.java:784)
> > > >         at
> > org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:818)
> > > > 2008-10-18 17:27:11,205 ERROR org.apache.hadoop.hbase.master.HMaster:
> > Can
> > > > not start master
> > > > java.lang.reflect.InvocationTargetException
> > > >         at
> > sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> > > > Method)
> > > >         at
> > > >
> > >
> >
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> > > >         at
> > > >
> > >
> >
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> > > >         at
> > > java.lang.reflect.Constructor.newInstance(Constructor.java:494)
> > > >         at
> > > org.apache.hadoop.hbase.master.HMaster.doMain(HMaster.java:784)
> > > >         at
> > org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:818)
> > > > Caused by: org.apache.hadoop.hbase.util.FileSystemVersionException:
> > File
> > > > system needs to be upgraded. Run the '${HBASE_HOME}/bin/hbase
> migrate'
> > > > script.
> > > >         at
> > > > org.apache.hadoop.hbase.util.FSUtils.checkVersion(FSUtils.java:131)
> > > >         at
> > > org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:203)
> > > >         at
> > > org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:147)
> > > >         ... 6 more
> > > >
> > > >
> > > >
> > > > Can someone advice me on this.
> > > >
> > > > thanks & regards,
> > > > rathi
> > > >
> > >
> >
>

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