On Sat, Jul 12, 2003 at 12:29:05PM +0100, Shri Shrikumar wrote: > On Fri, 2003-06-27 at 14:06, Colin Watson wrote: > > murphy, a.k.a. lists.debian.org, has been having some major problems > > over the last day or two. Just wait a while for things to clear. > > I am curious, what sort of problems ? I remember murphy having some > problems a while ago as well although that might have been just that it > was unable to cope with the volume. > > For someone who runs debian or a few machine and always thought of these > things as generally unbreakable esp if configured and managed by > professionals, it would be nice to know the kind of problems one could > face in a high availability server with high load. >
We had two main problems: -samosa.debian.org was (and still is) down. Samosa runs db.debian.org which is used by lists.debian.org to authenticate various -announce mailing lists. The script was not timing out, and started using up resources. -After tweaking settings for the Bayesan filtering option of SpamAssassin, it started consuming large amounts of resources. The main effect this had was that after a while lists.debian.org was processing emails much slower than they were coming in. This created the huge delay that caused emails to take so long to be processed. Once the problems were fixed, we still had to slowly let old messages through to avoid the load shooting straight back up. Regards, Pasc
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