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From Todd Lipcon <t...@cloudera.com>
Subject Re: Web Interface Not Working
Date Tue, 01 Dec 2009 18:45:18 GMT
Hi Mark,

Both web UIs went down but jobs can still be submitted, etc? This seems like
a problem external to Hadoop, since the JT (port 50030) and NN (port 50070)
are entirely separate processes. If they both became inaccessible at the
same time, perhaps a firewall rule was added that inadvertently blocked

If you ssh into the machine and run "jps", can you see the NN and JT
running? From that machine can you 'curl' ?


On Tue, Dec 1, 2009 at 7:41 AM, Mark Vigeant

> Hello-
> I have a namenode/JT with 3 slaves running cloudera's 0.20 release.
> Everything was going fine until yesterday when the web interface randomly
> went down (the http://hostname:50070 and http://hostname:50030). To my
> knowledge everything else is fine, but I wanted to know if anyone else has
> experienced a similar problem / what can I do to fix this?
> Thanks!
> Mark Vigeant
> RiskMetrics Group, Inc.
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