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From Ted Yu <yuzhih...@gmail.com>
Subject Re: Need Help on hbase error: The znode for the -ROOT- region doesn't exist!
Date Mon, 02 Sep 2013 16:47:21 GMT
Release notes for 0.96 would be a good resource.

w.r.t. API changes, please refer to:
https://docs.google.com/document/d/14nqQXlIvgJOxGFTfhSoquYzjW8Yx-v9TqTBqRjiB7g0/edit


On Mon, Sep 2, 2013 at 9:36 AM, anil gupta <anilgupta84@gmail.com> wrote:

> @Ted: Is there any documentation for all significant HBase changes in 0.95
> / 0.96?
>
>
> On Fri, Aug 30, 2013 at 5:39 PM, Ted Yu <yuzhihong@gmail.com> wrote:
>
> > -ROOT- table is gone in 0.95 / 0.96
> >
> > Looks like newer release of asynchbase is needed which can communicate
> with
> > 0.96 cluster.
> >
> > Cheers
> >
> >
> > On Fri, Aug 30, 2013 at 4:44 PM, S. Zhou <myxjtu@yahoo.com> wrote:
> >
> > > I wrote a java program which connects to hbase (I am using asynchbase).
> > > At this time
> > > hbase/hadoop are all running on my local dev box as pseudo cluster. I
> > > believe hbase/hadoop are all setup correctly since I can create hbase
> > > tables, update hbase tables, run MR jobs etc.
> > >
> > > The problem is:
> > > when I use asynhbase connect hbase, I always get the following error
> > > message: (see more log entries at the bottom of this message)
> > >
> > > =2013-08-30 15:15:21,892 ERROR [main-EventThread]
> (HBaseClient.java:2860)
> > > - The znode for the -ROOT- region doesn't exist!
> > >
> > > I googled but could not find any answer. Your help is highly
> appreciated.
> > >
> > > Related info: I am using asynchbase 1.4.1, hadoop 1.2.0, hbase
> > > 0.95.1-hadoop1.  (The hbase client used by my Java is version 0.94.0. I
> > > could not find jar file for 0.95.1-hadoop1. It is listed on maven
> central
> > > repository but it seems mis-configured and I could not download it).
> > >
> > > Here are more detail log info:
> > > =2013-08-30 15:15:21,824  INFO [main] (ZooKeeper.java:433) - Initiating
> > > client connection, connectString=127.0.0.1:2181 sessionTimeout=5000
> > > watcher=org.hbase.async.
> > > HBaseClient$ZKClient@3d32e42f
> > > =2013-08-30 15:15:21,849  INFO [main] (HBaseClient.java:2695) - Need to
> > > find the -ROOT- region
> > > =2013-08-30 15:15:21,850  INFO [main-SendThread()]
> (ClientCnxn.java:933)
> > -
> > > Opening socket connection to server /127.0.0.1:2181
> > > =2013-08-30 15:15:21,853  INFO [main-SendThread(localhost:2181)]
> > > (ZooKeeperSaslClient.java:125) - Client will not SASL-authenticate
> > > because the default JAAS configuration section 'Client' could not be
> > > found. If you are not using SASL, you may ignore this. On the other
> > > hand, if you expected SASL to work, please fix your JAAS configuration.
> > > =2013-08-30 15:15:21,859  INFO [main-SendThread(localhost:2181)]
> > > (ClientCnxn.java:846) - Socket connection established to localhost/
> > > 127.0.0.1:2181, initiating session
> > > =2013-08-30 15:15:21,884  INFO [main-SendThread(localhost:2181)]
> > > (ClientCnxn.java:1175) - Session establishment complete on server
> > localhost/
> > > 127.0.0.1:2181, sessionid = 0x140d06a475e000d, negotiated timeout =
> 6000
> > > =2013-08-30 15:15:21,892 ERROR [main-EventThread]
> (HBaseClient.java:2860)
> > > - The znode for the -ROOT- region doesn't exist!
> >
>
>
>
> --
> Thanks & Regards,
> Anil Gupta
>

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