Re: [Condor-users] quick condor_rooster question

[Dan Bradley <dan@xxxxxxxxxxxx>]

Hello Ian,

There is no configuration setting to limit the number of machines woken 
in a cycle.  As you suggested, you could limit the rate by wrapping 
condor_power with a script that sleeps.  Here's an example that limits 
the rate to 1 wakeup per 30s:

ROOSTER_WAKEUP_CMD = "/path/to/sleep_exec 30 $(BIN)/condor_power -d -i"

And then create sleep_exec:

#!/bin/sh
sleep $1
shift
exec "$@"

Hacky workaround or elegant plug-in.  Call it what you wish!

--Dan


Smith, Ian wrote:
> Hello All,
>
> Very quick question - is there an easy way of limiting the number of machines woken up
> on each condor_rooster cycle. ( The reason I ask is that if a user submits a large
> number of jobs then it appears that condor_rooster will try to wake up everything
> and the manager will get swamped. ) .I can think of a hacky workaround by 
> substituting condor_power for my own script but something more elegant
> would be nice.
>
> cheers,
>
> -ian,
>
> --------------------------------------------
> Dr Ian C. Smith,
> e-Science Team,
> The University of Liverpool,
> Computing Services Department
>
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