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From Todd Lipcon <t...@cloudera.com>
Subject Re: hadoop 0.20.2 and Ubuntu 9.04 and 9.10 problem.
Date Fri, 12 Mar 2010 00:35:07 GMT
Hi,

My guess is that the hosts in your cluster are low on entropy.

If you jstack the daemons as they are starting up, do you see them stuck in
a stace trace inside SecureRandom?

-Todd

On Thu, Mar 11, 2010 at 4:07 PM, Mohammed A Hassan <mhassanb@gmu.edu> wrote:

> Hi,
>
> I am working on Ubuntu 9.04/9.10 and hadoop 0.20.2. Here the problem is
> that for Pseudo Distributed and Distributed clusters, it takes undefined
> time (1 minute to several minutes, sometimes more than 10 minutes without
> any result) to up the live nodes.
> It shows that the number of live nodes is zero in
> http://localhost:50070/dfshealth.jsp for an uncertain amount of time.
>
> Regards
> M. Hassan
>



-- 
Todd Lipcon
Software Engineer, Cloudera

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