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HBase >> mail # user >> Re: Zookeeper tries to connect to localhost when i have specified another clearly.


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Re: Zookeeper tries to connect to localhost when i have specified another clearly.
TaskTrackers and Job trackers are MR nodes. You also have HDFS nodes and
HBase nodes.

What's the file name where you got that from?

JM

2013/8/21 Pavan Sudheendra <[EMAIL PROTECTED]>

> We have 5 tasktrackers and 1 job tracker..
> I don't know why we have this.. This architecture was already existing when
> i started working on this..
>
> I just tried pinging the datanode from a namenode using ip-10-34-187-170
> and it is able to ping it..
> Not sure its not able to pick it up and show it in the namenode logs...
> Frankly i thought the namenode logs should be more useful and specific
> instead of just giving out warning messages like this.. Let me know if you
> need any more files to look at ..
>
> thanks for all the help :)
>
>
> On Wed, Aug 21, 2013 at 7:13 PM, Jean-Marc Spaggiari <
> [EMAIL PROTECTED]> wrote:
>
> > Hi Pavan,
> >
> > How mane namenodes do you have? Are you running HA and that's why you
> have
> > more than 1 namenode?
> >
> > Also, yes, if you don't have DNS, you need to have hosts file configured.
> >
> > First try to ping from one server to the other one using the name only,
> if
> > it works, they you don't need to update the hosts file.
> >
> > JM
> >
> > 2013/8/21 Pavan Sudheendra <[EMAIL PROTECTED]>
> >
> > > I should update the /etc/hosts file on every namenode correct?
> > >
> > >
> > >
> > >
> > > On Wed, Aug 21, 2013 at 7:09 PM, Pavan Sudheendra <[EMAIL PROTECTED]
> > > >wrote:
> > >
> > > > But Jean all my namenodes log the same thing..
> > > > 2013-08-21 13:38:55,815 INFO org.apache.zookeeper.ClientCnxn: Opening
> > > > socket connection to server localhost/127.0.0.1:2181. Will not
> attempt
> > > to
> > > > authenticate using SASL (Unable to locate a login configuration)
> > > > java.net.ConnectException: Connection refused
> > > >
> > > >  Although i believe you, i'm starting to worry a bit.. Its taking a
> lot
> > > of
> > > > time for hbase to process 1 million entries in the cluster, let alone
> > 19
> > > > million.. So, huge performance blow there..
> > > >
> > > >
> > > >
> > > >
> > > > On Wed, Aug 21, 2013 at 6:56 PM, Jean-Marc Spaggiari <
> > > > [EMAIL PROTECTED]> wrote:
> > > >
> > > >> I'm running with this INFO for more than a year now ;) So no, I
> don't
> > > >> think
> > > >> this is going to pose any real threats. You have everything
> configured
> > > >> correctly and everything seems to be working fine.
> > > >>
> > > >> JM
> > > >>
> > > >> 2013/8/21 Pavan Sudheendra <[EMAIL PROTECTED]>
> > > >>
> > > >> > it doesn't pose any real threats?
> > > >> >
> > > >> >
> > > >> > On Wed, Aug 21, 2013 at 6:30 PM, Jean-Marc Spaggiari <
> > > >> > [EMAIL PROTECTED]> wrote:
> > > >> >
> > > >> > > All fine on those logs too.
> > > >> > >
> > > >> > > So everything is working fine, ZK, HBase, the job is working
> fine
> > > too.
> > > >> > The
> > > >> > > only issue is this INFO regarding SAS, correct?
> > > >> > >
> > > >> > > I think you should simply ignore it.
> > > >> > >
> > > >> > > If it's annoying you, just turn org.apache.zookeeper.ClientCnxn
> > > >> loglevel
> > > >> > to
> > > >> > > WARN on log4j.properties. (It's the setting I have on my own
> > > cluster).
> > > >> > >
> > > >> > > JM
> > > >> > >
> > > >> > > 2013/8/21 Pavan Sudheendra <[EMAIL PROTECTED]>
> > > >> > >
> > > >> > > > @Jean the log which i got at the start of running the hadoop
> > jar:
> > > >> Maybe
> > > >> > > you
> > > >> > > > can spot something
> > > >> > > >
> > > >> > > > 11:51:44,431  INFO ZooKeeper:100 - Client
> > > >> > > > environment:java.library.path=/usr/lib/hadoop/lib/native
> > > >> > > > 11:51:44,432  INFO ZooKeeper:100 - Client
> > > >> > environment:java.io.tmpdir=/tmp
> > > >> > > > 11:51:44,432  INFO ZooKeeper:100 - Client
> > > >> > environment:java.compiler=<NA>
> > > >> > > > 11:51:44,432  INFO ZooKeeper:100 - Client environment:os.name
> > > =Linux
> > > >> > > > 11:51:44,432  INFO ZooKeeper:100 - Client
> > > environment:os.arch=amd64
> > > >> > > > 11:51:44,432  INFO ZooKeeper:100 - Client