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Re: HBase MasterNotRunningException
Hi Anil,

Please see the below commands which I executed and respective outputs.

on HBase and Hadoop box

[rtit@localhost conf]$ netstat -alnp | grep 2181
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 :::2181                     :::*
 LISTEN      22572/java
tcp        0      0 ::ffff:192.265.47.222:2181  ::ffff:192.265.47.222:60094
ESTABLISHED 22572/java
tcp        0      0 ::ffff:192.265.47.222:2181  ::ffff:192.265.47.222:60117
ESTABLISHED 22572/java
tcp        0      0 ::ffff:192.265.47.222:2181  ::ffff:192.265.47.222:60098
ESTABLISHED 22572/java
tcp        0      0 ::ffff:192.265.47.222:60098 ::ffff:192.265.47.222:2181
 ESTABLISHED 22642/java
tcp        0      0 ::ffff:192.265.47.222:60094 ::ffff:192.265.47.222:2181
 ESTABLISHED 22842/java
tcp        0      0 ::ffff:192.265.47.222:60117 ::ffff:192.265.47.222:2181
 ESTABLISHED 22842/java
tcp        0      0 ::ffff:192.265.47.222:60089 ::ffff:192.265.47.222:2181
 ESTABLISHED 22642/java
tcp        0      0 ::ffff:192.265.47.222:2181  ::ffff:192.265.47.222:60089
ESTABLISHED 22572/java
[rtit@localhost conf]$ telnet localhost 2181
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.
[rtit@localhost conf]$
[rtit@localhost conf]$ telnet 192.265.47.222 2181
Trying 192.265.47.222...
Connected to 192.265.47.222.
Escape character is '^]'.
Connection closed by foreign host.
[rtit@localhost conf]$

--> From the remote box
[rtit@RTIT-1 hbasedemos]$ telnet 192.265.47.222 2181
Trying 192.265.47.222...
Connected to 192.265.47.222.
Escape character is '^]'.
Connection closed by foreign host.
[rtit@RTIT-1 hbasedemos]$
On Thu, Aug 30, 2012 at 8:58 PM, anil gupta <[EMAIL PROTECTED]> wrote:

> Then, it might be a issue with port binding. try to do telnet on the port
> to which HBase listens from localhost as well as remote machine.
> Also, try to run the netstat command and see the bindings of service.
>
> ~Anil
>
> On Thu, Aug 30, 2012 at 8:20 AM, Jilani Shaik <[EMAIL PROTECTED]>
> wrote:
>
> > Anil,
> >
> > Already I disabled firewall of linux using iptables service.
> >
> > Thank You,
> > Jilani
> >
> >
> > On Thu, Aug 30, 2012 at 8:35 PM, anil gupta <[EMAIL PROTECTED]>
> wrote:
> >
> > > Hi Jilani,
> > >
> > > It seems like a firewall issue. You will need to open appropriate ports
> > or
> > > disable the firewall on the machine you are running the service.
> > >
> > > HTH,
> > > Anil
> > >
> > > On Thu, Aug 30, 2012 at 7:46 AM, Jilani Shaik <[EMAIL PROTECTED]>
> > > wrote:
> > >
> > > > I am able to connect to HBase using Java client if the client is on
> the
> > > > same box where Hadoop and HBase are installed. If the client is on
> > other
> > > > box either windows or linux, I am getting the error as below
> > > >
> > > > org.apache.zookeeper.server.NIOServerCnxn: Closed socket connection
> for
> > > > client
> > > >
> > > > Please suggest me how to identify and fix the issue.
> > > >
> > > > Thank You,
> > > > Jilani
> > > >
> > > > On Thu, Aug 30, 2012 at 7:00 PM, Jilani Shaik <[EMAIL PROTECTED]>
> > > > wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > I have installed and configured  Hadoop(hadoop-1.0.3) and
> > > > > HBase(hbase-0.94.1) in a single Fedora linux box, where HBase
> > > > > as pseudo cluster setup.
> > > > >
> > > > > I am able to connect the HBase suing shell from console and able to
> > > > create
> > > > > and scan table. But when I tried to contact the same using java
> > > > application
> > > > > I am not able to connect the HBase.
> > > > >
> > > > > Output of "jps" as follows
> > > > > 16872 HRegionServer
> > > > > 16603 HQuorumPeer
> > > > > 15821 DataNode
> > > > > 16047 JobTracker
> > > > > 16667 HMaster
> > > > > 17984 Jps
> > > > > 15680 NameNode
> > > > > 15959 SecondaryNameNode
> > > > > 16179 TaskTracker
> > > > >
> > > > > The error log for zoo keeper of HBase is as follows