thanx 2009/8/7 Aaron Kimball <[email protected]>
> May I ask why you're trying to run the NameNode in Eclipse? This is > likely going to cause you lots of classpath headaches. I think your > current problem is that it can't find its config files, so it's not > able to read in the strings for what addresses it should listen on. > > If you want to see what's happening inside the namenode, I'd run > "bin/hadoop-daemon.sh start namenode" to start it, then fire up > Eclipse and attach the debugger externally. You can then point it at > your copy of the Hadoop source code so you can set breakpoints, trace, > etc. > > - A > > On Wed, Aug 5, 2009 at 9:51 PM, ashish pareek <[email protected]> wrote: > > > > Hi Everybody, > > > > I am trying to run hadoop from eclipse... but when i run > > NmaeNode.java as java appliaction i get following error..... Please help > in > > getting rid of this problem. > > > > > > > > 2009-08-05 23:42:00,760 INFO dfs.NameNode > > (StringUtils.java:startupShutdownMessage(464)) - STARTUP_MSG: > > > > /************************************************************ > > > > STARTUP_MSG: Starting NameNode > > > > STARTUP_MSG: host = datanode1/10.0.1.109 > > > > 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)) - > > java.lang.NullPointerException > > > > at > > org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:130) > > > > 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.createNameNode(NameNode.java:830) > > > > 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: > > > > /************************************************************ > > > > SHUTDOWN_MSG: Shutting down NameNode at datanode1/10.0.1.109 > > > > ************************************************************/ >
