FAQ
Sir , I tried everywhere on all forums , but could not resoleve this
problem . please help me out .

I followed your tutorial to run the hadoop , first running a datanode
locally on the same machine . and it all worked fine .

Then , i configured hadoop to run the namenode , secondarynamenode & and a
job tracker and a datanode on one machine , the master , and other two
machines as slaves . Total of three datanodes . start-all.sh successfully
start all daemons on all required nodes .
But is seems , that only the datanode running locally on my machine is
executing the whole job , the rest two slaves are starving for the
connection with the masters. Their tasktracker logs reads (same on both
slaves ):

2011-08-09 07:09:54,099 INFO org.apache.hadoop.ipc.Server: IPC Server
Responder: starting
2011-08-09 07:09:54,100 INFO org.apache.hadoop.ipc.Server: IPC Server
listener on 37874: starting
2011-08-09 07:09:54,103 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 0 on 37874: starting
2011-08-09 07:09:54,104 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 1 on 37874: starting
2011-08-09 07:09:54,104 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 2 on 37874: starting
2011-08-09 07:09:54,105 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 3 on 37874: starting
2011-08-09 07:09:54,105 INFO org.apache.hadoop.mapred.TaskTracker:
TaskTracker up at: localhost/127.0.0.1:37874
2011-08-09 07:09:54,105 INFO org.apache.hadoop.mapred.TaskTracker:
Starting tracker tracker_gislab-desktop:localhost/127.0.0.1:37874
2011-08-09 07:09:55,145 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: /10.14.11.32:9001. Already tried 0 time(s).
2011-08-09 07:09:56,146 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: /10.14.11.32:9001. Already tried 1 time(s).
2011-08-09 07:09:57,147 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: /10.14.11.32:9001. Already tried 2 time(s).
2011-08-09 07:09:58,148 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: /10.14.11.32:9001. Already tried 3 time(s).
2011-08-09 07:09:59,149 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: /10.14.11.32:9001. Already tried 4 time(s).
2011-08-09 07:10:00,150 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: /10.14.11.32:9001. Already tried 5 time(s).
2011-08-09 07:10:01,151 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: /10.14.11.32:9001. Already tried 6 time(s).
2011-08-09 07:10:02,151 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: /10.14.11.32:9001. Already tried 7 time(s).
2011-08-09 07:10:03,152 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: /10.14.11.32:9001. Already tried 8 time(s).
2011-08-09 07:10:04,153 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: /10.14.11.32:9001. Already tried 9 time(s).
2011-08-09 07:10:04,156 INFO org.apache.hadoop.ipc.RPC: Server at
/10.14.11.32:9001 not available yet, Zzzzz...
2011-08-09 07:10:06,158 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: /10.14.11.32:9001. Already tried 0 time(s).
2011-08-09 07:10:07,159 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: /10.14.11.32:9001. Already tried 1 time(s).

.... and continues. I tried re-enable the ipv6 address , but in vain . The
data in HDFS is distributed on all datanodes though. This confirms its not
a network problem also . I can password-lessely ssh in all directions .

Sir, please help . I shall be grateful to you.

Abhishek
Masters Student
IIT Bombay
INDIA

--
View this message in context: http://old.nabble.com/slave-nodes-could-not-connect-to-Master-.-tp32223105p32223105.html
Sent from the Hadoop core-dev mailing list archive at Nabble.com.

Search Discussions

  • Harsh J at Aug 9, 2011 at 2:53 am
    Perhaps the port 9001 (via mapred.job.tracker) for JobTracker is
    firewalled away on the master machine. Or is down.
    On Tue, Aug 9, 2011 at 7:46 AM, sachinites wrote:

    Sir , I tried everywhere on all forums , but could not resoleve this
    problem . please help me out .

    I followed your tutorial to run the hadoop , first running a datanode
    locally on the same machine . and it all worked fine .

    Then , i configured hadoop to run the namenode , secondarynamenode & and a
    job tracker and a datanode on one machine , the master , and other two
    machines as slaves . Total of three datanodes . start-all.sh successfully
    start all daemons on all required nodes .
    But is seems , that only the datanode running locally on my machine is
    executing the whole job , the rest two slaves are starving for the
    connection with the masters. Their tasktracker logs reads (same on both
    slaves ):

    2011-08-09 07:09:54,099 INFO org.apache.hadoop.ipc.Server: IPC Server
    Responder: starting
    2011-08-09 07:09:54,100 INFO org.apache.hadoop.ipc.Server: IPC Server
    listener on 37874: starting
    2011-08-09 07:09:54,103 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 0 on 37874: starting
    2011-08-09 07:09:54,104 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 1 on 37874: starting
    2011-08-09 07:09:54,104 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 2 on 37874: starting
    2011-08-09 07:09:54,105 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 3 on 37874: starting
    2011-08-09 07:09:54,105 INFO org.apache.hadoop.mapred.TaskTracker:
    TaskTracker up at: localhost/127.0.0.1:37874
    2011-08-09 07:09:54,105 INFO org.apache.hadoop.mapred.TaskTracker:
    Starting tracker tracker_gislab-desktop:localhost/127.0.0.1:37874
    2011-08-09 07:09:55,145 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 0 time(s).
    2011-08-09 07:09:56,146 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 1 time(s).
    2011-08-09 07:09:57,147 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 2 time(s).
    2011-08-09 07:09:58,148 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 3 time(s).
    2011-08-09 07:09:59,149 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 4 time(s).
    2011-08-09 07:10:00,150 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 5 time(s).
    2011-08-09 07:10:01,151 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 6 time(s).
    2011-08-09 07:10:02,151 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 7 time(s).
    2011-08-09 07:10:03,152 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 8 time(s).
    2011-08-09 07:10:04,153 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 9 time(s).
    2011-08-09 07:10:04,156 INFO org.apache.hadoop.ipc.RPC: Server at
    /10.14.11.32:9001 not available yet, Zzzzz...
    2011-08-09 07:10:06,158 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 0 time(s).
    2011-08-09 07:10:07,159 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 1 time(s).

    .... and continues. I tried re-enable the ipv6 address , but in vain . The
    data in HDFS is distributed on all datanodes though. This confirms its not
    a network problem also . I can password-lessely ssh in all directions .

    Sir, please help . I shall be grateful to you.

    Abhishek
    Masters Student
    IIT Bombay
    INDIA

    --
    View this message in context: http://old.nabble.com/slave-nodes-could-not-connect-to-Master-.-tp32223105p32223105.html
    Sent from the Hadoop core-dev mailing list archive at Nabble.com.


    --
    Harsh J
  • V at Aug 11, 2011 at 10:20 am
    Hi, This can be SSH configuration error. Reinstall SSH and try connecting to
    the master node. Hope it works

    May be dis link might be useful
    http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-multi-node-cluster/
    http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-multi-node-cluster/




    sachinites wrote:
    Sir , I tried everywhere on all forums , but could not resoleve this
    problem . please help me out .

    I followed your tutorial to run the hadoop , first running a datanode
    locally on the same machine . and it all worked fine .

    Then , i configured hadoop to run the namenode , secondarynamenode & and a
    job tracker and a datanode on one machine , the master , and other two
    machines as slaves . Total of three datanodes . start-all.sh successfully
    start all daemons on all required nodes .
    But is seems , that only the datanode running locally on my machine is
    executing the whole job , the rest two slaves are starving for the
    connection with the masters. Their tasktracker logs reads (same on both
    slaves ):

    2011-08-09 07:09:54,099 INFO org.apache.hadoop.ipc.Server: IPC Server
    Responder: starting
    2011-08-09 07:09:54,100 INFO org.apache.hadoop.ipc.Server: IPC Server
    listener on 37874: starting
    2011-08-09 07:09:54,103 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 0 on 37874: starting
    2011-08-09 07:09:54,104 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 1 on 37874: starting
    2011-08-09 07:09:54,104 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 2 on 37874: starting
    2011-08-09 07:09:54,105 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 3 on 37874: starting
    2011-08-09 07:09:54,105 INFO org.apache.hadoop.mapred.TaskTracker:
    TaskTracker up at: localhost/127.0.0.1:37874
    2011-08-09 07:09:54,105 INFO org.apache.hadoop.mapred.TaskTracker:
    Starting tracker tracker_gislab-desktop:localhost/127.0.0.1:37874
    2011-08-09 07:09:55,145 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 0 time(s).
    2011-08-09 07:09:56,146 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 1 time(s).
    2011-08-09 07:09:57,147 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 2 time(s).
    2011-08-09 07:09:58,148 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 3 time(s).
    2011-08-09 07:09:59,149 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 4 time(s).
    2011-08-09 07:10:00,150 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 5 time(s).
    2011-08-09 07:10:01,151 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 6 time(s).
    2011-08-09 07:10:02,151 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 7 time(s).
    2011-08-09 07:10:03,152 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 8 time(s).
    2011-08-09 07:10:04,153 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 9 time(s).
    2011-08-09 07:10:04,156 INFO org.apache.hadoop.ipc.RPC: Server at
    /10.14.11.32:9001 not available yet, Zzzzz...
    2011-08-09 07:10:06,158 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 0 time(s).
    2011-08-09 07:10:07,159 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 1 time(s).

    .... and continues. I tried re-enable the ipv6 address , but in vain . The
    data in HDFS is distributed on all datanodes though. This confirms its not
    a network problem also . I can password-lessely ssh in all directions .

    Sir, please help . I shall be grateful to you.

    Abhishek
    Masters Student
    IIT Bombay
    INDIA
    --
    View this message in context: http://old.nabble.com/slave-nodes-could-not-connect-to-Master-.-tp32223105p32240913.html
    Sent from the Hadoop core-dev mailing list archive at Nabble.com.
  • Merto Mertek at Oct 26, 2011 at 2:02 am
    Same problem here.. Sachinites have you found a solution?
    I have three nodes where situation is the same as described above.. Pinging
    and ssh-ing to the master node works ok, however logs are full of the
    following info:

    "INFO org.apache.hadoop.ipc.Client: Retrying connect to server:
    hadoopmaster/192.168.12.1:54310"

    Jobtracker sees just one node (http://hadoopmaster:50030/jobtracker.jsp ->
    probably the local one). Hadoopmaster node has the following process: "
    127.0.0.1:54310 0.0.0.0:* LISTEN 1001
    17909 5131/java " so the problem is probably elsewhere..

    Do you have any idea what could be wrong?

    On 11 August 2011 12:19, V@ni wrote:


    Hi, This can be SSH configuration error. Reinstall SSH and try connecting
    to
    the master node. Hope it works

    May be dis link might be useful

    http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-multi-node-cluster/

    http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-multi-node-cluster/




    sachinites wrote:
    Sir , I tried everywhere on all forums , but could not resoleve this
    problem . please help me out .

    I followed your tutorial to run the hadoop , first running a datanode
    locally on the same machine . and it all worked fine .

    Then , i configured hadoop to run the namenode , secondarynamenode & and a
    job tracker and a datanode on one machine , the master , and other two
    machines as slaves . Total of three datanodes . start-all.sh successfully
    start all daemons on all required nodes .
    But is seems , that only the datanode running locally on my machine is
    executing the whole job , the rest two slaves are starving for the
    connection with the masters. Their tasktracker logs reads (same on both
    slaves ):

    2011-08-09 07:09:54,099 INFO org.apache.hadoop.ipc.Server: IPC Server
    Responder: starting
    2011-08-09 07:09:54,100 INFO org.apache.hadoop.ipc.Server: IPC Server
    listener on 37874: starting
    2011-08-09 07:09:54,103 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 0 on 37874: starting
    2011-08-09 07:09:54,104 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 1 on 37874: starting
    2011-08-09 07:09:54,104 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 2 on 37874: starting
    2011-08-09 07:09:54,105 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 3 on 37874: starting
    2011-08-09 07:09:54,105 INFO org.apache.hadoop.mapred.TaskTracker:
    TaskTracker up at: localhost/127.0.0.1:37874
    2011-08-09 07:09:54,105 INFO org.apache.hadoop.mapred.TaskTracker:
    Starting tracker tracker_gislab-desktop:localhost/127.0.0.1:37874
    2011-08-09 07:09:55,145 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 0 time(s).
    2011-08-09 07:09:56,146 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 1 time(s).
    2011-08-09 07:09:57,147 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 2 time(s).
    2011-08-09 07:09:58,148 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 3 time(s).
    2011-08-09 07:09:59,149 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 4 time(s).
    2011-08-09 07:10:00,150 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 5 time(s).
    2011-08-09 07:10:01,151 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 6 time(s).
    2011-08-09 07:10:02,151 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 7 time(s).
    2011-08-09 07:10:03,152 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 8 time(s).
    2011-08-09 07:10:04,153 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 9 time(s).
    2011-08-09 07:10:04,156 INFO org.apache.hadoop.ipc.RPC: Server at
    /10.14.11.32:9001 not available yet, Zzzzz...
    2011-08-09 07:10:06,158 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 0 time(s).
    2011-08-09 07:10:07,159 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 1 time(s).

    .... and continues. I tried re-enable the ipv6 address , but in vain . The
    data in HDFS is distributed on all datanodes though. This confirms its not
    a network problem also . I can password-lessely ssh in all directions .

    Sir, please help . I shall be grateful to you.

    Abhishek
    Masters Student
    IIT Bombay
    INDIA
    --
    View this message in context:
    http://old.nabble.com/slave-nodes-could-not-connect-to-Master-.-tp32223105p32240913.html
    Sent from the Hadoop core-dev mailing list archive at Nabble.com.
  • Merto Mertek at Oct 26, 2011 at 9:05 pm
    Ok, problem seems to be solved. In the core-site.xml file on the namenode I
    left value for fs.name.default pointing to localhost. After changing it to
    hadoomaster, and restarting it I could see other nodes too..
    On 26 October 2011 04:02, Merto Mertek wrote:

    Same problem here.. Sachinites have you found a solution?
    I have three nodes where situation is the same as described above.. Pinging
    and ssh-ing to the master node works ok, however logs are full of the
    following info:

    "INFO org.apache.hadoop.ipc.Client: Retrying connect to server:
    hadoopmaster/192.168.12.1:54310"

    Jobtracker sees just one node (http://hadoopmaster:50030/jobtracker.jsp ->
    probably the local one). Hadoopmaster node has the following process: "
    127.0.0.1:54310 0.0.0.0:* LISTEN 1001
    17909 5131/java " so the problem is probably elsewhere..

    Do you have any idea what could be wrong?

    On 11 August 2011 12:19, V@ni wrote:


    Hi, This can be SSH configuration error. Reinstall SSH and try connecting
    to
    the master node. Hope it works

    May be dis link might be useful

    http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-multi-node-cluster/

    http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-multi-node-cluster/




    sachinites wrote:
    Sir , I tried everywhere on all forums , but could not resoleve this
    problem . please help me out .

    I followed your tutorial to run the hadoop , first running a datanode
    locally on the same machine . and it all worked fine .

    Then , i configured hadoop to run the namenode , secondarynamenode & and a
    job tracker and a datanode on one machine , the master , and other two
    machines as slaves . Total of three datanodes . start-all.sh
    successfully
    start all daemons on all required nodes .
    But is seems , that only the datanode running locally on my machine is
    executing the whole job , the rest two slaves are starving for the
    connection with the masters. Their tasktracker logs reads (same on both
    slaves ):

    2011-08-09 07:09:54,099 INFO org.apache.hadoop.ipc.Server: IPC Server
    Responder: starting
    2011-08-09 07:09:54,100 INFO org.apache.hadoop.ipc.Server: IPC Server
    listener on 37874: starting
    2011-08-09 07:09:54,103 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 0 on 37874: starting
    2011-08-09 07:09:54,104 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 1 on 37874: starting
    2011-08-09 07:09:54,104 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 2 on 37874: starting
    2011-08-09 07:09:54,105 INFO org.apache.hadoop.ipc.Server: IPC Server
    handler 3 on 37874: starting
    2011-08-09 07:09:54,105 INFO org.apache.hadoop.mapred.TaskTracker:
    TaskTracker up at: localhost/127.0.0.1:37874
    2011-08-09 07:09:54,105 INFO org.apache.hadoop.mapred.TaskTracker:
    Starting tracker tracker_gislab-desktop:localhost/127.0.0.1:37874
    2011-08-09 07:09:55,145 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 0 time(s).
    2011-08-09 07:09:56,146 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 1 time(s).
    2011-08-09 07:09:57,147 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 2 time(s).
    2011-08-09 07:09:58,148 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 3 time(s).
    2011-08-09 07:09:59,149 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 4 time(s).
    2011-08-09 07:10:00,150 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 5 time(s).
    2011-08-09 07:10:01,151 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 6 time(s).
    2011-08-09 07:10:02,151 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 7 time(s).
    2011-08-09 07:10:03,152 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 8 time(s).
    2011-08-09 07:10:04,153 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 9 time(s).
    2011-08-09 07:10:04,156 INFO org.apache.hadoop.ipc.RPC: Server at
    /10.14.11.32:9001 not available yet, Zzzzz...
    2011-08-09 07:10:06,158 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 0 time(s).
    2011-08-09 07:10:07,159 INFO org.apache.hadoop.ipc.Client: Retrying
    connect to server: /10.14.11.32:9001. Already tried 1 time(s).

    .... and continues. I tried re-enable the ipv6 address , but in vain . The
    data in HDFS is distributed on all datanodes though. This confirms its not
    a network problem also . I can password-lessely ssh in all directions .

    Sir, please help . I shall be grateful to you.

    Abhishek
    Masters Student
    IIT Bombay
    INDIA
    --
    View this message in context:
    http://old.nabble.com/slave-nodes-could-not-connect-to-Master-.-tp32223105p32240913.html
    Sent from the Hadoop core-dev mailing list archive at Nabble.com.

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groupcommon-dev @
categorieshadoop
postedAug 9, '11 at 2:16a
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