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From ashish pareek <pareek...@gmail.com>
Subject Help in building and running hadoop from eclipse
Date Thu, 06 Aug 2009 09:16:44 GMT
Hi All,

                 I am trying to learn building  Hadoop  as I have to make
few changes to FShell code . I tried the link given in the
http://www.*wiki*.apache.org/*hadoop*/*Eclipse*Environment but always landed
up in errors.

             Then there was error like .eclipse.template missing ... so I
download it from
               But thing was .classpath in svn link was different from
hadoop 0.18.3 I had offline.
                When I tried to build with .classpath I had offline....
following the steps given in the following video. But still there seems to
be java errors after build liek button cannot be resolved , Tabconfiguration
cannot be resolved etc..

                 But when I tried with .classpath from svn link build was
successful  expect few warnnings. :)

                 Now I want to run in eclispe to trace hadoop to find more
about it.... but when I try to run hadoop-site.xml as java application I get
errors like NUllexception or
                 STRATUP_MSG = build bu UNKNOWN on UNKNOWN time etc and Name
Node shutdown.

Error Message is as follows :::

009-08-05 23:42:00,760 INFO  dfs.NameNode (StringUtils.java:

startupShutdownMessage(464)) - STARTUP_MSG:


STARTUP_MSG: Starting NameNode

STARTUP_MSG:   host = datanode1/

STARTUP_MSG:   args = []

STARTUP_MSG:   version = Unknown

STARTUP_MSG:   build = Unknown -r Unknown; compiled by 'Unknown' on Unknown


2009-08-05 23:42:00,806 ERROR dfs.NameNode (NameNode.java:main(843)) -


            at org.apache.hadoop.dfs.NameNode.getAddress(NameNode.java:116)

            at org.apache.hadoop.dfs.NameNode.initialize(NameNode.java:136)

            at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:193)

            at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:179)


            at org.apache.hadoop.dfs.NameNode.main(NameNode.java:839)

2009-08-05 23:42:00,807 INFO  dfs.NameNode (StringUtils.java:run(479)) -


SHUTDOWN_MSG: Shutting down NameNode at datanode1/


                Can you please help with building and running Hadoop in

Thanks for your percious time.


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