Okay, well, the whole reason I'm trying to lower the usage of cron (or
should I say, the processes it runs) is because I thought that the load on
the machine may have been what has been crashing it over the past couple of
months. I've been having a looooooooooooooong running problem of the server
crashing every 5 days or so, now I'm down to about every 1-2 days the dang
thing crashes. No matter what I do it will not stay up, and the problem
continues to get worse.
Here are the machine specs:
Dual Pentium II 266
512mb EDO ECC SDRAM
Adaptec 7880 on board SCSI controller
2 - 4.1 GIG IBM UW-SCSI hard drives
3com 10/100 TP Ethernet Card
Redhat 5.0
Kernel 2.0.34 w/SMP enabled, no modules. Both SCSI and Netcard driver are
built in the kernel.
I cannot keep the dang thing running anymore! There is absolutely nothing in
the logs at the time it crashes.... just bang, it's gone. I am at my wits
end here... I have no idea what else I can do except throw it out the
friggen window. I hope someone out there can help!?!?!
Jeremy Domingue
[EMAIL PROTECTED]
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Dan
> Cornilescu
> Sent: Sunday, June 21, 1998 8:17 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Bind processes to a specific processor using SMP?
>
>
> Jeremy Domingue wrote:
> >
> > Other than that, is there a way to mimize the spikes that crontab causes
> > without modifying the amount/types of programs that it runs?
> >
>
> Try distributing the cron jobs more evenly in time. Many/heavy
> jobs running in the same time may generate a lot of swapping,
> which can bring the machine to it's knees (but it won't die :)
>
> If a single job is heavy enough to give one of those spikes, you
> may try running the jobs at a lower priority using nice. This
> would make the life easier to the users logged in, but it may
> also generate heavy swapping.
>
> If swapping is your problem, consider getting more RAM (xosview
> or top shows you the swap usage).
>
> dan
>
>
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