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From Peter Zhang <hadoo...@gmail.com>
Subject Re: Hbase Clustering
Date Fri, 21 Sep 2012 07:28:56 GMT

Could you use base-master,hadoop-namenode for your config when ref hostname.

oc-PowerEdge-R610, it's localhost hostname,It's may be the cause issue.

--  
Peter Zhang
Sent with Sparrow (http://www.sparrowmailapp.com/?sig)


On 2012年9月21日Friday at 下午2:09, Venkateswara Rao Dokku wrote:

> I have that entry in the /etc/hosts files. The /etc/hosts files are as
> given below.
>  
> *Master:*
> 127.0.0.1 localhost
> 127.0.1.1 oc-PowerEdge-R610
> 10.2.32.48 hbase-master hadoop-namenode
> 10.240.13.64 hbase-regionserver1 hadoop-datanode1
> #10.240.13.133 hadoop-datanode1
> # The following lines are desirable for IPv6 capable hosts
> ::1 ip6-localhost ip6-loopback
> fe00::0 ip6-localnet
> ff00::0 ip6-mcastprefix
> ff02::1 ip6-allnodes
> ff02::2 ip6-allrouters
>  
> *Slave:*
> 127.0.0.1 localhost
> 127.0.1.1 venkat-System-Product-Name
> 10.2.32.48 hbase-master hadoop-namenode
> 10.240.13.40 hbase-regionserver1 hadoop-datanode1
> # The following lines are desirable for IPv6 capable hosts
> ::1 ip6-localhost ip6-loopback
> fe00::0 ip6-localnet
> ff00::0 ip6-mcastprefix
> ff02::1 ip6-allnodes
> ff02::2 ip6-allrouters
>  
>  
>  
> On Fri, Sep 21, 2012 at 11:30 AM, Monish r <monishsvce@gmail.com (mailto:monishsvce@gmail.com)>
wrote:
>  
> > Hi,
> > From the region server log , i can see that region server cannot resolve
> > the host name *oc-PowerEdge-R610 , *check if u have entry for this
> > hostname*
> > *in */etc/hosts *file.
> >  
> > 2012-09-20 17:18:39,966 INFO
> > org.apache.hadoop.hbase.regionserver.HRegionServer: Attempting connect
> > to Master server at oc-PowerEdge-R610,60000,1348136566220
> > 2012-09-20 17:18:39,966 WARN
> > org.apache.hadoop.hbase.regionserver.HRegionServer: Unable to connect
> > to master. Retrying. Error was:
> > java.net.UnknownHostException: unknown host:* oc-PowerEdge-R610*
> >  
> >  
> >  
> > On Thu, Sep 20, 2012 at 5:49 PM, Venkateswara Rao Dokku <
> > dvrao.584@gmail.com (mailto:dvrao.584@gmail.com)
> > > wrote:
> >  
> >  
> > >  
> > > please find the attached master & slave hbase logs.
> > >  
> > > > On Thu, Sep 20, 2012 at 5:14 PM, Monish r <monishsvce@gmail.com (mailto:monishsvce@gmail.com)>
wrote:
> > > >  
> > > > > Hi,
> > > > > From the *jps* status i can see that u have started region server
in
> > > > > both
> > > > > the servers
> > > > >  
> > > > > *NameNode:*
> > > > >  
> > > > > 11578 HMaster
> > > > > 11476 HQuorumPeer
> > > > > 10921 TaskTracker
> > > > > 10246 NameNode
> > > > > 12430 Main
> > > > > 10746 JobTracker
> > > > > 12538 Jps
> > > > > 11798 *HRegionServer*
> > > > >  
> > > > > 10618 SecondaryNameNode
> > > > > 10433 DataNode
> > > > >  
> > > > > *DataNode:*
> > > > > 2202 NC
> > > > > 10772 Jps
> > > > > 10495 TaskTracker
> > > > > 2112 -- process information unavailable
> > > > > 10697 *HRegionServer*
> > > > >  
> > > > > 10331 DataNode
> > > > >  
> > > > > From the log i can see that hbase master has only one region server
in
> > > > > its
> > > > > list and it is not access able.
> > > > >  
> > > > > 2012-09-18 23:59:13,841 DEBUG
> > > > > org.apache.hadoop.hbase.master.AssignmentManager: No previous
> > > > > transition plan was found (or we are ignoring an existing plan) for
> > > > > -ROOT-,,0.70236052 so generated a random one; hri=-ROOT-,,0.70236052,
> > > > > src=, dest=localhost,60020,1347968702214; 1 *(online=1, exclude=0)
> > > > > available servers *
> > > > >  
> > > > > 2012-09-18 23:59:13,841 INFO org.apache.hadoop.ipc.HBaseRPC: Server
at
> > > > > *localhost/127.0.0.1:60020 could not be reached after 1 tries, giving
> > > > > up.*
> > > > >  
> > > > >  
> > > > >  
> > > > > The problem may be with u r cluster set up , check the region server
> > logs
> > > > > and see if they are alive , u cannot rely on jps
> > > > > and tell for sure the process is up , since it can go down after
u r
> > > > > look
> > > > > up.
> > > > >  
> > > > > Check u r region server logs , if u still have issues , post the
region
> > > > > server logs in paste bin and reply.
> > > > >  
> > > > > Regards,
> > > > > R.Monish
> > > > >  
> > > > >  
> > > > > *
> > > > >  
> > > > > *
> > > > >  
> > > > >  
> > > > >  
> > > > > On Thu, Sep 20, 2012 at 10:03 AM, Venkateswara Rao Dokku <
> > > > > dvrao.584@gmail.com (mailto:dvrao.584@gmail.com)> wrote:
> > > > >  
> > > > > >  
> > > > > >  
> > > > > > On Tue, Sep 18, 2012 at 10:43 PM, Jean-Daniel Cryans <
> > > > > jdcryans@apache.org (mailto:jdcryans@apache.org)>wrote:
> > > > > >  
> > > > > > > What's in the master's log?
> > > > > > >  
> > > > > > > J-D
> > > > > > > Please find the attached master logs.
> > > > > > >  
> > > > > > > On Tue, Sep 18, 2012 at 3:41 AM, Venkateswara Rao Dokku
> > > > > > > <dvrao.584@gmail.com (mailto:dvrao.584@gmail.com)>
wrote:
> > > > > > > > Hi,
> > > > > > > > I am new to Hbase & I wanted to Cluster Hbase
on 2 nodes. I
> > > > > > > >  
> > > > > > >  
> > > > > > >  
> > > > > >  
> > > > > >  
> > > > >  
> > > > > put
> > > > > > > one
> > > > > > > > of my nodes as hadoop-namenodeas well as hbase-master
& the other
> > > > > > >  
> > > > > > >  
> > > > > >  
> > > > >  
> > > > > node
> > > > > > > as
> > > > > > > > hadoop-datanode1 as well as hbase-region-server1.
I started hadoop
> > > > > > >  
> > > > > > > cluster
> > > > > > > > as well as Hbase on the name-node side. They started
fine. But
> > > > > > >  
> > > > > > >  
> > > > > >  
> > > > >  
> > > > >  
> > > >  
> > >  
> >  
> > when
> > > > > I
> > > > > > > try
> > > > > > > > to create tabes in Hbase shell I got the following
error.
> > > > > > > >  
> > > > > > > > hbase(main):001:0> create 't1','f1'
> > > > > > > >  
> > > > > > > > ERROR: org.apache.hadoop.hbase.MasterNotRunningException:
Retried
> > 7
> > > > > > > times
> > > > > > > >  
> > > > > > > > Here is some help for this command:
> > > > > > > > Create table; pass table name, a dictionary of specifications
per
> > > > > > > > column family, and optionally a dictionary of table
configuration.
> > > > > > > > Dictionaries are described below in the GENERAL NOTES
section.
> > > > > > > > Examples:
> > > > > > > >  
> > > > > > > > hbase> create 't1', {NAME => 'f1', VERSIONS
=> 5}
> > > > > > > > hbase> create 't1', {NAME => 'f1'}, {NAME =>
'f2'}, {NAME =>
> > > > > > > >  
> > > > > > >  
> > > > > > >  
> > > > > >  
> > > > >  
> > > >  
> > >  
> >  
> > 'f3'}
> > > > > > > > hbase> # The above in shorthand would be the following:
> > > > > > > > hbase> create 't1', 'f1', 'f2', 'f3'
> > > > > > > > hbase> create 't1', {NAME => 'f1', VERSIONS
=> 1, TTL =>
> > > > > > > >  
> > > > > > >  
> > > > > >  
> > > > >  
> > > >  
> > >  
> >  
> > 2592000,
> > > > > > > > BLOCKCACHE => true}
> > > > > > > > hbase> create 't1', 'f1', {SPLITS => ['10',
'20', '30', '40']}
> > > > > > > > hbase> create 't1', 'f1', {SPLITS_FILE => 'splits.txt'}
> > > > > > > >  
> > > > > > > > But I could see HMaster running with Jps. The below
given are the
> > > > > > > processes
> > > > > > > > running on the name-node & datanode.
> > > > > > > > *NameNode:*
> > > > > > > > *
> > > > > > > > *
> > > > > > > > 11578 HMaster
> > > > > > > > 11476 HQuorumPeer
> > > > > > > > 10921 TaskTracker
> > > > > > > > 10246 NameNode
> > > > > > > > 12430 Main
> > > > > > > > 10746 JobTracker
> > > > > > > > 12538 Jps
> > > > > > > > 11798 HRegionServer
> > > > > > > > 10618 SecondaryNameNode
> > > > > > > > 10433 DataNode
> > > > > > > >  
> > > > > > > > *DataNode:*
> > > > > > > > *
> > > > > > > > *
> > > > > > > > 2202 NC
> > > > > > > > 10772 Jps
> > > > > > > > 10495 TaskTracker
> > > > > > > > 2112 -- process information unavailable
> > > > > > > > 10697 HRegionServer
> > > > > > > > 10331 DataNode
> > > > > > > >  
> > > > > > > > Could You please let me know whats wrong with my approach
of
> > > > > creating
> > > > > > > > tables. Thanks for replying
> > > > > > > >  
> > > > > > > > P.S: forgot to mention I am using hadoop-0.20.2 &
hbase-0.92.1
> > > > > > > versions. So
> > > > > > > > to avoid version mismatches I copied the hadoop Jar
file in hadoop
> > > > > > > > installation directory into habse/lib/ in all the
cluster nodes.
> > > > > > > >  
> > > > > > > >  
> > > > > > > > --
> > > > > > > > Thanks & Regards,
> > > > > > > >  
> > > > > > > > Venkateswara Rao Dokku
> > > > > >  
> > > > > >  
> > > > > >  
> > > > > > --
> > > > > > Thanks & Regards,
> > > > > > Venkateswara Rao Dokku,
> > > > > > Software Engineer,One Convergence Devices Pvt Ltd.,
> > > > > > Jubille Hills,Hyderabad.
> > > > > >  
> > > > >  
> > > > >  
> > > >  
> > > >  
> > > >  
> > > >  
> > > > --
> > > > Thanks & Regards,
> > > > Venkateswara Rao Dokku,
> > > > Software Engineer,One Convergence Devices Pvt Ltd.,
> > > > Jubille Hills,Hyderabad.
> > > >  
> > >  
> > >  
> > >  
> > > --
> > > Thanks & Regards,
> > > Venkateswara Rao Dokku,
> > > Software Engineer,One Convergence Devices Pvt Ltd.,
> > > Jubille Hills,Hyderabad.
> > >  
> >  
> >  
>  
>  
>  
>  
> --  
> Thanks & Regards,
> Venkateswara Rao Dokku,
> Software Engineer,One Convergence Devices Pvt Ltd.,
> Jubille Hills,Hyderabad.
>  
>  



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