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From chuckanut <chucka...@gmail.com>
Subject Problem with start-all on 0.16.4
Date Wed, 14 May 2008 15:10:23 GMT
Hi,

I have a working 0.15.3 install and am trying to upgrade to 0.16.4.  I
want to start clean with an empty filesystem, so I just reformatted
the filesystem instead of using the upgrade option.  When I run
start-all.sh, I get a null pointer exception originating from the
NetUtils.getServerAddress() method.  This cluster is on a private
network, could there be a bug with the way hadoop is looking up the
address?  Other ideas?

Here is the full error and stack trace from the namenode log:

2008-05-14 08:03:37,252 INFO org.apache.hadoop.fs.FSNamesystem:
fsOwner=qeadmin,qeadmin,wheel
2008-05-14 08:03:37,253 INFO org.apache.hadoop.fs.FSNamesystem:
supergroup=supergroup
2008-05-14 08:03:37,253 INFO org.apache.hadoop.fs.FSNamesystem:
isPermissionEnabled=true
2008-05-14 08:03:37,358 INFO org.apache.hadoop.fs.FSNamesystem:
Finished loading FSImage in 137 msecs
2008-05-14 08:03:37,362 INFO org.apache.hadoop.fs.FSNamesystem:
Leaving safemode after 142 msecs
2008-05-14 08:03:37,362 INFO org.apache.hadoop.dfs.StateChange: STATE*
Network topology has 0 racks and 0 datanodes
2008-05-14 08:03:37,363 INFO org.apache.hadoop.dfs.StateChange: STATE*
UnderReplicatedBlocks has 0 blocks
2008-05-14 08:03:37,377 INFO org.apache.hadoop.fs.FSNamesystem:
Registered FSNamesystemStatusMBean
2008-05-14 08:03:37,398 ERROR org.apache.hadoop.dfs.NameNode:
java.lang.NullPointerException
       at org.apache.hadoop.net.NetUtils.getServerAddress(NetUtils.java:148)
       at org.apache.hadoop.dfs.FSNamesystem.initialize(FSNamesystem.java:279)
       at org.apache.hadoop.dfs.FSNamesystem.<init>(FSNamesystem.java:235)
       at org.apache.hadoop.dfs.NameNode.initialize(NameNode.java:131)
       at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:176)
       at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:162)
       at org.apache.hadoop.dfs.NameNode.createNameNode(NameNode.java:846)
       at org.apache.hadoop.dfs.NameNode.main(NameNode.java:855)

2008-05-14 08:03:37,399 INFO org.apache.hadoop.dfs.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at compute-0-0.local/192.168.1.254
************************************************************/


Thanks

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