On Tue, 2002-01-29 at 23:54, Mike Bresnahan wrote:
> Yes, I understand the 1 lock theory, but the problem symptoms were described
> to me as "disk thrashing".  Disk thrashing is not a symptom I associate with
> a concurrency problem.

blocking on I/O in this case is more a contention issue and not a high
I/O load "disk thrashing" issue. They're waiting for the lock to be
released for their turn i think.

> > Next because the mbox file is getting large, almost 2Gb now,
> > there is a problem
> > that pipermail wants to load the entire mbox into core. 128Mb
> > swap  + 512Mb swap
> > < 2.0Gb file, so the disk thrash. Swaping, swaping, swapping.
> 
> Ah!  This sounds more like the root of our immediate problem.  Is there some
> way to cut down on the size of the mbox file?  Can we archive more often as
> Ben suggests?
> 
> > Yes, ezmlm handled the load without problem.
> 
> Why did we switch?
> 
> Mike
> 
> 
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-- 
Ben Lutgens				http://people.sistina.com/~blutgens/
System Administrator			Sistina Software Inc.	

"If you love someone, set them free. If they come home, set them on
fire."
	- George Carlin
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