Problem Getting Started With Hadoop

[Pedro Guedes <ps...@criticalsoftware.com>]

Hello!

I'm having trouble following your tutorial on Getting started with
hadoop [GSWH] (from
http://wiki.apache.org/lucene-hadoop/GettingStartedWithHadoop). Is it
not up to date?

I'm using hadoop-0.12.2 that i've just downloaded today...

The GSWH guide says: "Set the variable fs.default.name to the Namenode's
intended host:port", but the defaults in hadoop-default.xml say it is
file:/// and describe it as "The name of the default file system.  A URI
whose scheme and authority determine the FileSystem implementation" so I
left it has file:///...

Next it says: "Set the variable mapred.job.tracker to the jobtrackers
intended host:port" and in the description from hadoop-default.xml I
read: "The host and port that the MapReduce job tracker runs at.  If
"local", then jobs are run in-process as a single map and reduce task."
so I left it as "local".

Then i changed the following data paths: dfs.name.dir, dfs.data.dir,
dfs.client.buffer.dir and mapred.local.dir to use a directory i specify
instead of $(hadoop.tmp.dir).

I "ensure that the dfs.name.dir directory exists" and format the
namenode with '$HADOOP_INSTALL/hadoop/bin/hadoop namenode -format'...
all goes well (or at least i get no errors)

When i try to start my single node cluster with:
'$HADOOP_INSTALL/hadoop/bin/start-all.sh' I get the following output:

$ hadoop/bin/start-all.sh
starting namenode, logging to
/home/ciclope/hadoop-install/hadoop/bin/../logs/hadoop-ciclope-namenode-ps-guedes-desktop.out
ciclope@localhost's password:
localhost: starting datanode, logging to
/home/ciclope/hadoop-install/hadoop/bin/../logs/hadoop-ciclope-datanode-ps-guedes-desktop.out
ciclope@localhost's password:
localhost: starting secondarynamenode, logging to
/home/ciclope/hadoop-install/hadoop/bin/../logs/hadoop-ciclope-secondarynamenode-ps-guedes-desktop.out
localhost: Exception in thread "main"
java.lang.IllegalArgumentException: port out of range:-1
localhost:      at
java.net.InetSocketAddress.<init>(InetSocketAddress.java:118)
localhost:      at
org.apache.hadoop.dfs.DataNode.createSocketAddr(DataNode.java:106)
localhost:      at
org.apache.hadoop.dfs.SecondaryNameNode.<init>(SecondaryNameNode.java:93)
localhost:      at
org.apache.hadoop.dfs.SecondaryNameNode.main(SecondaryNameNode.java:474)
starting jobtracker, logging to
/home/ciclope/hadoop-install/hadoop/bin/../logs/hadoop-ciclope-jobtracker-ps-guedes-desktop.out
ciclope@localhost's password:
localhost: starting tasktracker, logging to
/home/ciclope/hadoop-install/hadoop/bin/../logs/hadoop-ciclope-tasktracker-ps-guedes-desktop.out

and from the logs:
ERROR org.apache.hadoop.dfs.NameNode:
java.lang.IllegalArgumentException: port out of range:-1
ERROR org.apache.hadoop.dfs.DataNode:
java.lang.IllegalArgumentException: port out of range:-1
ERROR org.apache.hadoop.mapred.JobTracker: java.lang.RuntimeException:
Bad mapred.job.tracker: local
ERROR org.apache.hadoop.mapred.TaskTracker: Can not start task tracker
because java.lang.RuntimeException: Bad mapred.job.tracker: local
and finally for the secondary namenode the erros goes to the .out file:
java.lang.IllegalArgumentException: port out of range:-1

humm... this must be a really stupid mistake... so i'm either being
really dumb or the Guide isn't very well specified... probably both!

Can anybody help? If it's a problem with the wiki i'm very much willing
to help fix it...

Thanks in advance,

Pedro Guedes