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From "Owen O'Malley" <o...@yahoo-inc.com>
Subject Re: Recent IPC changes?
Date Tue, 06 Jun 2006 20:24:34 GMT

On Jun 6, 2006, at 11:47 AM, Bryan A. Pendleton wrote:

> What appears to be happening is that that heartbeats aren't 
> registering with
> the job tracker, except after an RPC timeout. If my RPC timeout is the
> default (60s), it takes 60s for the refresh cycle - effectively 
> meaning that
> it takes 60s for *any* tasks to start being distributed, after a job 
> starts
> up. If I turn the IPC timeout down to 10s, then the heartbeats happen 
> at 10s
> instead. Is this intended? Is there some new setting that I should be
> setting (that's not in hadoop-default, I guess)?

There shouldn't be. Which call is timing out? It should be in the log 
of the relevant task tracker. Look for the SocketTimeoutException in 
the log. The call stack will tell us which call is causing the problem.

-- Owen


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