Hi All,
I have setup a single node cluster(release hadoop-1.0.4). Following is the
configuration used -
core-site.xml :-
<property>
<name>fs.default.name</name>
<value>hdfs://localhost:54310</value>
</property>
masters:-
localhost
slaves:-
localhost
I am able to successfully format the Namenode and perform files system
operations by running the CLIs on Namenode.
But I am receiving following error when I try to access HDFS from a remote
machine -
$ bin/hadoop fs -ls /
Warning: $HADOOP_HOME is deprecated.
13/04/08 07:13:56 INFO ipc.Client: Retrying connect to server:
10.209.10.206/10.209.10.206:54310. Already tried 0 time(s).
13/04/08 07:13:57 INFO ipc.Client: Retrying connect to server:
10.209.10.206/10.209.10.206:54310. Already tried 1 time(s).
13/04/08 07:13:58 INFO ipc.Client: Retrying connect to server:
10.209.10.206/10.209.10.206:54310. Already tried 2 time(s).
13/04/08 07:13:59 INFO ipc.Client: Retrying connect to server:
10.209.10.206/10.209.10.206:54310. Already tried 3 time(s).
13/04/08 07:14:00 INFO ipc.Client: Retrying connect to server:
10.209.10.206/10.209.10.206:54310. Already tried 4 time(s).
13/04/08 07:14:01 INFO ipc.Client: Retrying connect to server:
10.209.10.206/10.209.10.206:54310. Already tried 5 time(s).
13/04/08 07:14:02 INFO ipc.Client: Retrying connect to server:
10.209.10.206/10.209.10.206:54310. Already tried 6 time(s).
13/04/08 07:14:03 INFO ipc.Client: Retrying connect to server:
10.209.10.206/10.209.10.206:54310. Already tried 7 time(s).
13/04/08 07:14:04 INFO ipc.Client: Retrying connect to server:
10.209.10.206/10.209.10.206:54310. Already tried 8 time(s).
13/04/08 07:14:05 INFO ipc.Client: Retrying connect to server:
10.209.10.206/10.209.10.206:54310. Already tried 9 time(s).
Bad connection to FS. command aborted. exception: Call to
10.209.10.206/10.209.10.206:54310 failed on connection exception:
java.net.ConnectException: Connection refused
Where 10.209.10.206 is the IP of the server hosting the Namenode and it is
also the configured value for "fs.default.name" in the core-site.xml file on
the remote machine.
Executing 'bin/hadoop fs -fs hdfs://10.209.10.206:54310 -ls /' also result in
same output.
Also, I am writing a C application using libhdfs to communicate with HDFS. How
do we provide credentials while connecting to HDFS?
Thanks
Saurabh
