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Date: Fri, 30 Aug 2013 17:39:28 -0700
Message-ID: 
 <CALte62yLWWfFH07+oJuai6-qwEJ7SnV-5OHTD=fh8zSnWesp+w@mail.gmail.com>
Subject: Re: Need Help on hbase error: The znode for the -ROOT- region doesn't
 exist!
From: Ted Yu <yuzhihong@gmail.com>
To: "user@hbase.apache.org" <user@hbase.apache.org>,
 "S. Zhou" <myxjtu@yahoo.com>
Content-Type: multipart/alternative; boundary=001a11c264a45a2bdd04e53392f5

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Content-Type: text/plain; charset=ISO-8859-1

-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!

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