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From: Todd Lipcon <todd@cloudera.com>
Date: Mon, 15 Feb 2010 20:08:44 -0800
Message-ID: <45f85f71002152008m19b98ce4u4d23dd23a59aa096@mail.gmail.com>
Subject: Re: Trouble with secondary indexing?
To: common-user@hadoop.apache.org
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Hi Michael,

This question may be better suited for the HBase mailing list:
hbase-user@hadoop.apache.org

I haven't worked with the secondary indexing contrib module yet, but
here's one idea: did you try uncommenting the "export
HBASE_CLASSPATH=3D" line in conf/hbase-env.sh and adding the indexing
contrib module there? Also, you should point the classpath variable at
the jar itself, not just the directory in which the jar is contained.

Thanks
-Todd

On Mon, Feb 15, 2010 at 9:25 AM, Michael Segel
<michael_segel@hotmail.com> wrote:
>
> Hi, First time posting...
>
> Got an interesting problem with setting up secondary indexing in Hbase.
>
> We're running with Cloudera's distribution, and we have secondary indexin=
g up and running on our 'sandbox' machines.
>
> I'm installing it on our development cloud, and I know I did something to=
tally 'brain dead' but can't figure out what it is...
> (Sort of like looking for your keys and they are in plain sight on the ta=
ble in front of you...)
>
> We've got Hadoop up and running, and Hbase up and running without the sec=
ondary indexing.
> We've added the two properties in to the hbase-site.xml and then in our .=
kshrc (yes we use ksh :-)
>
>
> I've added $HBASE_HOME/contrib/transactional to the CLASSPATH shell varia=
ble.
>
> The error we get is:
> 2010-02-15 08:39:30,263 ERROR org.apache.hadoop.hbase.master.HMaster: Can=
 not start master
> java.lang.reflect.InvocationTargetException
> =A0 =A0 =A0 =A0at sun.reflect.NativeConstructorAccessorImpl.newInstance0(=
Native Method)
> =A0 =A0 =A0 =A0at sun.reflect.NativeConstructorAccessorImpl.newInstance(N=
ativeConstructorAccessorImpl.java:39)
> =A0 =A0 =A0 =A0at sun.reflect.DelegatingConstructorAccessorImpl.newInstan=
ce(DelegatingConstructorAccessorImpl.java:27)
> =A0 =A0 =A0 =A0at java.lang.reflect.Constructor.newInstance(Constructor.j=
ava:513)
> =A0 =A0 =A0 =A0at org.apache.hadoop.hbase.master.HMaster.doMain(HMaster.j=
ava:1241)
> =A0 =A0 =A0 =A0at org.apache.hadoop.hbase.master.HMaster.main(HMaster.jav=
a:1282)
> Caused by: java.lang.UnsupportedOperationException: Unable to find region=
 server interface org.apache.hadoop.hbase.ipc.IndexedRegionInterface
>
>
> When I look at the error, I'm thinking that I'm missing the path to the C=
LASS, however on a different cluster of machines running Cloudera's +152 re=
lease (HBase-0.20.0) don't have a problem.
>
> So what am I missing?
>
> TIA!
>
> -Mikey
>
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