Strange behaviour : sloooww processing (bayes problem?)

[Eelco Wesemann]

Hi,

No sollution, but a "same here". I've had similar behavour on my setup:
sendmail+clamav+sa.
When running MS and SA in debug mode, I noticed that around 50% to 80% of the
processing time was spent on obtaining a lock on the bayes database.

My setup:
debian unstable, kernel 2.6.5
sendmail-8.12.11
MailScanner-4.30.3
clamav-0.71
spamassassin-2.63

Max SpamAssassin Size = 30000
Max Unscanned Bytes Per Scan = 100000000
Max Unsafe Bytes Per Scan = 50000000
Max Unscanned Messages Per Scan = 40
Max Unsafe Messages Per Scan = 40
Max Normal Queue Size = 2000

Bayes magic:
0.000          0          2          0  non-token data: bayes db version
0.000          0     163094          0  non-token data: nspam
0.000          0      13224          0  non-token data: nham
0.000          0     435207          0  non-token data: ntokens
0.000          0 1084290758          0  non-token data: oldest atime
0.000          0 1085525323          0  non-token data: newest atime
0.000          0 1085525334          0  non-token data: last journal sync atime
0.000          0 1084784968          0  non-token data: last expiry atime
0.000          0     345600          0  non-token data: last expire atime delta
0.000          0     189064          0  non-token data: last expire reduction count

Would putting the bayes dirs in tmpfs increase the speed of the locking of the
bayes-databases by SA?

Regards,

Eelco

Robert Mena wrote:
> Hi everyone,
>
> I replaced my exim+rav setup sunday with a
> exim+ms+clamav+sa.  Everything was ok, the load was
> higher but the flow of the messages seemed smooth.
>
> Today I've noticed that the exim.in queue grew up to
> 8000 messages.  In the two previous days it never
> exceeded 500.  The out queue was higher yesterday (up
> to 10K messages) despite the smoother behaviour so It
> does not seem an attack or increased volume of
> incoming spam.
>
> After I've switched off the spamassassin (still
> mailscanner + clamav) the exim.in queue went from 8K
> to 0 in a matter of minutes.
>
> Any ideas ?
>
> My setup
> - Linux Fedora Core 1 - kernel 2.4.22-1.2188.nptlsmp
> - mailscanner-4.30.3-2
> - spamassassin-2.63-1
> - exim 4.32
> - clamav-0.70
>
> My General Configuration setup looks like this:
>
> Max SpamAssassin Size = 30000
> Max Unscanned Bytes Per Scan = 0
> Max Unsafe Bytes Per Scan = 50000000
> Max Unscanned Messages Per Scan = 0
> Max Unsafe Messages Per Scan = 100
> Max Normal Queue Size = 5000
>
> My sa-learn dump:
> 0.000          0          2          0  non-token
> data: bayes db version
> 0.000          0       8856          0  non-token
> data: nspam
> 0.000          0       8072          0  non-token
> data: nham
> 0.000          0     357214          0  non-token
> data: ntokens
> 0.000          0 1000210340          0  non-token
> data: oldest atime
> 0.000          0 1085521354          0  non-token
> data: newest atime
> 0.000          0 1085521390          0  non-token
> data: last journal sync atime
> 0.000          0 1085409209          0  non-token
> data: last expiry atime
> 0.000          0     852711          0  non-token
> data: last expire atime delta
> 0.000          0          0          0  non-token
> data: last expire reduction count

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