The following issues might be impacting you (from release notes)
http://issues.apache.org/jira/browse/HADOOP-2185
HADOOP-2185. RPC Server uses any available port if the specified
port is zero. Otherwise it uses the specified port. Also combines
the configuration attributes for the servers' bind address and
port from "x.x.x.x" and "y" to "x.x.x.x:y".
Deprecated configuration variables:
dfs.info.bindAddress
dfs.info.port
dfs.datanode.bindAddress
dfs.datanode.port
dfs.datanode.info.bindAdress
dfs.datanode.info.port
dfs.secondary.info.bindAddress
dfs.secondary.info.port
mapred.job.tracker.info.bindAddress
mapred.job.tracker.info.port
mapred.task.tracker.report.bindAddress
tasktracker.http.bindAddress
tasktracker.http.port
New configuration variables (post HADOOP-2404):
dfs.secondary.http.address
dfs.datanode.address
dfs.datanode.http.address
dfs.http.address
mapred.job.tracker.http.address
mapred.task.tracker.report.address
mapred.task.tracker.http.address
-----Original Message-----
From: Dave Coyle [mailto:[EMAIL PROTECTED]
Sent: Monday, March 10, 2008 10:01 PM
To: core-user@hadoop.apache.org
Subject: Re: zombie data nodes, not alive but not dead
On 2008-03-10 23:37:36 -0400, [EMAIL PROTECTED] wrote:
> I can leave the cluster running for hours and this slave will never
> "register" itself with the namenode. I've been messing with this
problem
> for three days now and I'm out of ideas. Any suggestions?
I had a similar-sounding problem with a 0.16.0 setup I had...
namenode thinks datanodes are dead, but the datanodes complain if
namenode is unreachable so there must be *some* connectivity.
Admittedly I haven't had the time yet to recreate what I did to see if
I had just mangled some config somewhere, but I was eventually able to
sort out my problem by...and yes, this sounds a bit wacky... running
a given datanode interactively, suspending it, then bringing it back
to the foreground. E.g. (assuming your namenode is already running):
$ bin/hadoop datanode
<ctrl-Z>
$ fg
and the datanode then magically registered with the namenode.
Give it a shot... I'm curious to hear if it works for you, too.
-Coyle
