Hi,
I am trying to run Haddop (hadoop-0.20.203.0) with Hbase (hbase-0.20.6) on a
single node cluster in localhost.
Hadoop start is ok without any errors but when i start Hbase :
Master is running but cannot see any .ROOT. Table.

I think it is maybe a problem on the hdfs settings from any of the
components i quoted up there.
I join you my logs.
Last point (but not the least) : when i stop hbase, master doesn't answer
and i have to kill it manually !
Hope somebody will have the perfect solution for me !!
Thx ++
                                      hbase-hadoop-master-desktop.log :

2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
environment:java.io.tmpdir=/tmp
2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
environment:java.compiler=<NA>
2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
environment:os.name=Linux
2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
environment:os.arch=i386
2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
environment:os.version=2.6.32-24-generic
2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
environment:user.name=hadoop
2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
environment:user.home=/home/hadoop
2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
environment:user.dir=/home/hadoop/hbase-0.20.6
2011-05-19 18:16:37,721 INFO org.apache.zookeeper.ZooKeeper: Initiating
client connection, connectString=localhost:2181 sessionTimeout=60000
watcher=Thread[Thread-1,5,main]
2011-05-19 18:16:37,722 INFO org.apache.zookeeper.ClientCnxn:
zookeeper.disableAutoWatchReset is false
2011-05-19 18:16:37,742 INFO org.apache.zookeeper.ClientCnxn: Attempting
connection to server localhost/127.0.0.1:2181
2011-05-19 18:16:37,772 INFO org.apache.zookeeper.ClientCnxn: Priming
connection to java.nio.channels.SocketChannel[connected
local=/127.0.0.1:51311 remote=localhost/127.0.0.1:2181]
2011-05-19 18:16:37,781 INFO org.apache.zookeeper.ClientCnxn: Server
connection successful
2011-05-19 18:16:37,811 DEBUG org.apache.hadoop.hbase.master.HMaster: Got
event None with path null
2011-05-19 18:16:37,821 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
finished:false header:: -8,101  replyHeader:: -8,53,0  request::
0,v{},v{},v{}  response:: null
2011-05-19 18:16:37,831 INFO org.apache.hadoop.hbase.master.RegionManager:
-ROOT- region unset (but not set to be reassigned)
2011-05-19 18:16:37,832 INFO org.apache.hadoop.hbase.master.RegionManager:
ROOT inserted into regionsInTransition
2011-05-19 18:16:38,074 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
finished:false header:: 1,4  replyHeader:: 1,53,-101  request::
'/hbase/master,T  response::
2011-05-19 18:16:38,129 DEBUG
org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Failed to read:
org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode NoNode for /hbase/master
2011-05-19 18:16:38,135 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
finished:false header:: 2,3  replyHeader:: 2,53,0  request:: '/hbase,F
response:: s{12,12,1305801043560,1305801043560,0,11,0,0,0,1,50}
2011-05-19 18:16:38,157 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
finished:false header:: 3,1  replyHeader:: 3,54,0  request::
'/hbase/master,#3132372e302e312e313a3630303030,v{s{31,s{'world,'anyone}}},1
response:: '/hbase/master
2011-05-19 18:16:38,163 DEBUG
org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Wrote master address
127.0.1.1:60000 to ZooKeeper
2011-05-19 18:16:38,170 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
finished:false header:: 4,3  replyHeader:: 4,54,0  request:: '/hbase,F
response:: s{12,12,1305801043560,1305801043560,0,12,0,0,0,2,54}
2011-05-19 18:16:38,179 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
finished:false header:: 5,1  replyHeader:: 5,55,-110  request::
'/hbase/shutdown,#7570,v{s{31,s{'world,'anyone}}},0  response::
2011-05-19 18:16:38,184 DEBUG
org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: State node exists.
2011-05-19 18:16:38,185 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
finished:false header:: 6,3  replyHeader:: 6,55,0  request::
'/hbase/shutdown,T  response::
s{14,14,1305801043605,1305801043605,0,0,0,0,2,0,14}
2011-05-19 18:16:38,187 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
finished:false header:: 7,4  replyHeader:: 7,55,0  request::
'/hbase/master,T  response::
#3132372e302e312e313a3630303030,s{54,54,1305821798150,1305821798150,0,0,0,85578333903978497,15,0,54}
2011-05-19 18:16:38,187 DEBUG
org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Read ZNode /hbase/master
got 127.0.1.1:60000
2011-05-19 18:16:38,187 INFO org.apache.hadoop.hbase.master.HMaster: HMaster
initialized on 127.0.1.1:60000
2011-05-19 18:16:38,193 DEBUG org.apache.hadoop.hbase.master.HMaster:
Checking cluster state...
2011-05-19 18:16:38,195 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
finished:false header:: 8,4  replyHeader:: 8,55,-101  request::
'/hbase/root-region-server,F  response::
2011-05-19 18:16:38,196 DEBUG
org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Failed to read:
org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode NoNode for /hbase/root-region-server
2011-05-19 18:16:38,203 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
sessionid:0x130090a90d10001, packet:

It looks like your region server isn't connected to zookeeper. Can you
find a line in your region server log that looks like this:

INFO org.apache.zookeeper.ClientCnxn: Attempting connection to server
localhost/127.0.0.1:2181

-Joey

On Thu, May 19, 2011 at 9:18 AM, Florent G. <[EMAIL PROTECTED]> wrote:
>
> Hi,
> I am trying to run Haddop (hadoop-0.20.203.0) with Hbase (hbase-0.20.6) on a
> single node cluster in localhost.
> Hadoop start is ok without any errors but when i start Hbase :
> Master is running but cannot see any .ROOT. Table.
>
> I think it is maybe a problem on the hdfs settings from any of the
> components i quoted up there.
> I join you my logs.
> Last point (but not the least) : when i stop hbase, master doesn't answer
> and i have to kill it manually !
> Hope somebody will have the perfect solution for me !!
> Thx ++
>                                      hbase-hadoop-master-desktop.log :
>
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:java.io.tmpdir=/tmp
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:java.compiler=<NA>
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:os.name=Linux
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:os.arch=i386
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:os.version=2.6.32-24-generic
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:user.name=hadoop
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:user.home=/home/hadoop
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:user.dir=/home/hadoop/hbase-0.20.6
> 2011-05-19 18:16:37,721 INFO org.apache.zookeeper.ZooKeeper: Initiating
> client connection, connectString=localhost:2181 sessionTimeout=60000
> watcher=Thread[Thread-1,5,main]
> 2011-05-19 18:16:37,722 INFO org.apache.zookeeper.ClientCnxn:
> zookeeper.disableAutoWatchReset is false
> 2011-05-19 18:16:37,742 INFO org.apache.zookeeper.ClientCnxn: Attempting
> connection to server localhost/127.0.0.1:2181
> 2011-05-19 18:16:37,772 INFO org.apache.zookeeper.ClientCnxn: Priming
> connection to java.nio.channels.SocketChannel[connected
> local=/127.0.0.1:51311 remote=localhost/127.0.0.1:2181]
> 2011-05-19 18:16:37,781 INFO org.apache.zookeeper.ClientCnxn: Server
> connection successful
> 2011-05-19 18:16:37,811 DEBUG org.apache.hadoop.hbase.master.HMaster: Got
> event None with path null
> 2011-05-19 18:16:37,821 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
> sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
> finished:false header:: -8,101  replyHeader:: -8,53,0  request::
> 0,v{},v{},v{}  response:: null
> 2011-05-19 18:16:37,831 INFO org.apache.hadoop.hbase.master.RegionManager:
> -ROOT- region unset (but not set to be reassigned)
> 2011-05-19 18:16:37,832 INFO org.apache.hadoop.hbase.master.RegionManager:
> ROOT inserted into regionsInTransition
> 2011-05-19 18:16:38,074 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
> sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
> finished:false header:: 1,4  replyHeader:: 1,53,-101  request::
> '/hbase/master,T  response::
> 2011-05-19 18:16:38,129 DEBUG
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Failed to read:
> org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode > NoNode for /hbase/master
> 2011-05-19 18:16:38,135 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
> sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
> finished:false header:: 2,3  replyHeader:: 2,53,0  request:: '/hbase,F
> response:: s{12,12,1305801043560,1305801043560,0,11,0,0,0,1,50}
> 2011-05-19 18:16:38,157 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
> sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
> finished:false header:: 3,1  replyHeader:: 3,54,0  request::

Joseph Echeverria
Cloudera, Inc.
443.305.9434

The master log doesn't contain anything special, if anything weird
happened it would have been right after what you pasted.

Regarding the versions you are using, I'm pretty sure that HBase
0.20.6 can't work with Hadoop 0.20.203.0 because of the
security-related code. Don't be confused by the "0.20" in "0.20.203"
because this is not 0.20.

I haven't tested HBase 0.90 with that new Hadoop release but I believe
it should work once you replace the Hadoop jars.

J-D

On Thu, May 19, 2011 at 9:18 AM, Florent G. <[EMAIL PROTECTED]> wrote:
>
> Hi,
> I am trying to run Haddop (hadoop-0.20.203.0) with Hbase (hbase-0.20.6) on a
> single node cluster in localhost.
> Hadoop start is ok without any errors but when i start Hbase :
> Master is running but cannot see any .ROOT. Table.
>
> I think it is maybe a problem on the hdfs settings from any of the
> components i quoted up there.
> I join you my logs.
> Last point (but not the least) : when i stop hbase, master doesn't answer
> and i have to kill it manually !
> Hope somebody will have the perfect solution for me !!
> Thx ++
>                                      hbase-hadoop-master-desktop.log :
>
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:java.io.tmpdir=/tmp
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:java.compiler=<NA>
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:os.name=Linux
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:os.arch=i386
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:os.version=2.6.32-24-generic
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:user.name=hadoop
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:user.home=/home/hadoop
> 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:user.dir=/home/hadoop/hbase-0.20.6
> 2011-05-19 18:16:37,721 INFO org.apache.zookeeper.ZooKeeper: Initiating
> client connection, connectString=localhost:2181 sessionTimeout=60000
> watcher=Thread[Thread-1,5,main]
> 2011-05-19 18:16:37,722 INFO org.apache.zookeeper.ClientCnxn:
> zookeeper.disableAutoWatchReset is false
> 2011-05-19 18:16:37,742 INFO org.apache.zookeeper.ClientCnxn: Attempting
> connection to server localhost/127.0.0.1:2181
> 2011-05-19 18:16:37,772 INFO org.apache.zookeeper.ClientCnxn: Priming
> connection to java.nio.channels.SocketChannel[connected
> local=/127.0.0.1:51311 remote=localhost/127.0.0.1:2181]
> 2011-05-19 18:16:37,781 INFO org.apache.zookeeper.ClientCnxn: Server
> connection successful
> 2011-05-19 18:16:37,811 DEBUG org.apache.hadoop.hbase.master.HMaster: Got
> event None with path null
> 2011-05-19 18:16:37,821 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
> sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
> finished:false header:: -8,101  replyHeader:: -8,53,0  request::
> 0,v{},v{},v{}  response:: null
> 2011-05-19 18:16:37,831 INFO org.apache.hadoop.hbase.master.RegionManager:
> -ROOT- region unset (but not set to be reassigned)
> 2011-05-19 18:16:37,832 INFO org.apache.hadoop.hbase.master.RegionManager:
> ROOT inserted into regionsInTransition
> 2011-05-19 18:16:38,074 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
> sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
> finished:false header:: 1,4  replyHeader:: 1,53,-101  request::
> '/hbase/master,T  response::
> 2011-05-19 18:16:38,129 DEBUG
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Failed to read:
> org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode > NoNode for /hbase/master
> 2011-05-19 18:16:38,135 DEBUG org.apache.zookeeper.ClientCnxn: Reading reply
> sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
> finished:false header:: 2,3  replyHeader:: 2,53,0  request:: '/hbase,F
> response:: s{12,12,1305801043560,1305801043560,0,11,0,0,0,1,50}

Yes,HBase 0.90 worked well with hadoop-0.20.203.0.

But I want to go back to hbase0.20.6.  How to go backup hadoop-020.2 ?

On Fri, May 20, 2011 at 2:55 AM, Jean-Daniel Cryans <[EMAIL PROTECTED]>wrote:

> The master log doesn't contain anything special, if anything weird
> happened it would have been right after what you pasted.
>
> Regarding the versions you are using, I'm pretty sure that HBase
> 0.20.6 can't work with Hadoop 0.20.203.0 because of the
> security-related code. Don't be confused by the "0.20" in "0.20.203"
> because this is not 0.20.
>
> I haven't tested HBase 0.90 with that new Hadoop release but I believe
> it should work once you replace the Hadoop jars.
>
> J-D
>
> On Thu, May 19, 2011 at 9:18 AM, Florent G. <[EMAIL PROTECTED]>
> wrote:
> >
> > Hi,
> > I am trying to run Haddop (hadoop-0.20.203.0) with Hbase (hbase-0.20.6)
> on a
> > single node cluster in localhost.
> > Hadoop start is ok without any errors but when i start Hbase :
> > Master is running but cannot see any .ROOT. Table.
> >
> > I think it is maybe a problem on the hdfs settings from any of the
> > components i quoted up there.
> > I join you my logs.
> > Last point (but not the least) : when i stop hbase, master doesn't answer
> > and i have to kill it manually !
> > Hope somebody will have the perfect solution for me !!
> > Thx ++
> >                                      hbase-hadoop-master-desktop.log :
> >
> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> > environment:java.io.tmpdir=/tmp
> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> > environment:java.compiler=<NA>
> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> > environment:os.name=Linux
> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> > environment:os.arch=i386
> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> > environment:os.version=2.6.32-24-generic
> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> > environment:user.name=hadoop
> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> > environment:user.home=/home/hadoop
> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
> > environment:user.dir=/home/hadoop/hbase-0.20.6
> > 2011-05-19 18:16:37,721 INFO org.apache.zookeeper.ZooKeeper: Initiating
> > client connection, connectString=localhost:2181 sessionTimeout=60000
> > watcher=Thread[Thread-1,5,main]
> > 2011-05-19 18:16:37,722 INFO org.apache.zookeeper.ClientCnxn:
> > zookeeper.disableAutoWatchReset is false
> > 2011-05-19 18:16:37,742 INFO org.apache.zookeeper.ClientCnxn: Attempting
> > connection to server localhost/127.0.0.1:2181
> > 2011-05-19 18:16:37,772 INFO org.apache.zookeeper.ClientCnxn: Priming
> > connection to java.nio.channels.SocketChannel[connected
> > local=/127.0.0.1:51311 remote=localhost/127.0.0.1:2181]
> > 2011-05-19 18:16:37,781 INFO org.apache.zookeeper.ClientCnxn: Server
> > connection successful
> > 2011-05-19 18:16:37,811 DEBUG org.apache.hadoop.hbase.master.HMaster: Got
> > event None with path null
> > 2011-05-19 18:16:37,821 DEBUG org.apache.zookeeper.ClientCnxn: Reading
> reply
> > sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
> > finished:false header:: -8,101  replyHeader:: -8,53,0  request::
> > 0,v{},v{},v{}  response:: null
> > 2011-05-19 18:16:37,831 INFO
> org.apache.hadoop.hbase.master.RegionManager:
> > -ROOT- region unset (but not set to be reassigned)
> > 2011-05-19 18:16:37,832 INFO
> org.apache.hadoop.hbase.master.RegionManager:
> > ROOT inserted into regionsInTransition
> > 2011-05-19 18:16:38,074 DEBUG org.apache.zookeeper.ClientCnxn: Reading
> reply
> > sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
> > finished:false header:: 1,4  replyHeader:: 1,53,-101  request::
> > '/hbase/master,T  response::
> > 2011-05-19 18:16:38,129 DEBUG
> > org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Failed to read:

Thanks & Best regards
jiajun

On Wed, Jul 6, 2011 at 5:14 PM, 陈加俊 <[EMAIL PROTECTED]> wrote:
> Yes,HBase 0.90 worked well with hadoop-0.20.203.0.
>
> But I want to go back to hbase0.20.6.  How to go backup hadoop-020.2 ?
>

Whatever about hadoop, you cannot go backwards once you've gone to
0.90 with hbase. See this section on upgrading in the manual:
http://hbase.apache.org/book.html#upgrade0.90.

You could do an export of your 0.90.x data and reload it into 0.20.x
once you'd set it up?

St.Ack

> On Fri, May 20, 2011 at 2:55 AM, Jean-Daniel Cryans <[EMAIL PROTECTED]>wrote:
>
>> The master log doesn't contain anything special, if anything weird
>> happened it would have been right after what you pasted.
>>
>> Regarding the versions you are using, I'm pretty sure that HBase
>> 0.20.6 can't work with Hadoop 0.20.203.0 because of the
>> security-related code. Don't be confused by the "0.20" in "0.20.203"
>> because this is not 0.20.
>>
>> I haven't tested HBase 0.90 with that new Hadoop release but I believe
>> it should work once you replace the Hadoop jars.
>>
>> J-D
>>
>> On Thu, May 19, 2011 at 9:18 AM, Florent G. <[EMAIL PROTECTED]>
>> wrote:
>> >
>> > Hi,
>> > I am trying to run Haddop (hadoop-0.20.203.0) with Hbase (hbase-0.20.6)
>> on a
>> > single node cluster in localhost.
>> > Hadoop start is ok without any errors but when i start Hbase :
>> > Master is running but cannot see any .ROOT. Table.
>> >
>> > I think it is maybe a problem on the hdfs settings from any of the
>> > components i quoted up there.
>> > I join you my logs.
>> > Last point (but not the least) : when i stop hbase, master doesn't answer
>> > and i have to kill it manually !
>> > Hope somebody will have the perfect solution for me !!
>> > Thx ++
>> >                                      hbase-hadoop-master-desktop.log :
>> >
>> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
>> > environment:java.io.tmpdir=/tmp
>> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
>> > environment:java.compiler=<NA>
>> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
>> > environment:os.name=Linux
>> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
>> > environment:os.arch=i386
>> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
>> > environment:os.version=2.6.32-24-generic
>> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
>> > environment:user.name=hadoop
>> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
>> > environment:user.home=/home/hadoop
>> > 2011-05-19 18:16:37,720 INFO org.apache.zookeeper.ZooKeeper: Client
>> > environment:user.dir=/home/hadoop/hbase-0.20.6
>> > 2011-05-19 18:16:37,721 INFO org.apache.zookeeper.ZooKeeper: Initiating
>> > client connection, connectString=localhost:2181 sessionTimeout=60000
>> > watcher=Thread[Thread-1,5,main]
>> > 2011-05-19 18:16:37,722 INFO org.apache.zookeeper.ClientCnxn:
>> > zookeeper.disableAutoWatchReset is false
>> > 2011-05-19 18:16:37,742 INFO org.apache.zookeeper.ClientCnxn: Attempting
>> > connection to server localhost/127.0.0.1:2181
>> > 2011-05-19 18:16:37,772 INFO org.apache.zookeeper.ClientCnxn: Priming
>> > connection to java.nio.channels.SocketChannel[connected
>> > local=/127.0.0.1:51311 remote=localhost/127.0.0.1:2181]
>> > 2011-05-19 18:16:37,781 INFO org.apache.zookeeper.ClientCnxn: Server
>> > connection successful
>> > 2011-05-19 18:16:37,811 DEBUG org.apache.hadoop.hbase.master.HMaster: Got
>> > event None with path null
>> > 2011-05-19 18:16:37,821 DEBUG org.apache.zookeeper.ClientCnxn: Reading
>> reply
>> > sessionid:0x130090a90d10001, packet:: clientPath:null serverPath:null
>> > finished:false header:: -8,101  replyHeader:: -8,53,0  request::
>> > 0,v{},v{},v{}  response:: null
>> > 2011-05-19 18:16:37,831 INFO
>> org.apache.hadoop.hbase.master.RegionManager:
>> > -ROOT- region unset (but not set to be reassigned)
>> > 2011-05-19 18:16:37,832 INFO
>> org.apache.hadoop.hbase.master.RegionManager: