Mailscanner max'd out CPU/memory and not processing mail

[Julian Field]

Check for hardware faults. Does /proc/meminfo still agree with you on 
the amount of RAM in the box, for example?

Sounds like you've already got 'Use SpamAssassin = no'. What virus 
scanners are you using? If you are using clamavmodule, I would switch to 
clamd if you can on your distro.

Run "MailScanner --lint" as well as "MailScanner --debug" to check 
things out.

Tom Rogers wrote:
> I've been using Mailscanner for a few years now with no problems.  Two weeks
> ago, I started to have a problem.
>
> When I run Mailscanner, it maxes out my CPU and the amount of memory it uses
> keeps climbing and climbing, until it eats all available memory and basically
> freezes the system up.  Mail is not processed from the Postfix hold queue.
>
> The system is basically used only by myself, for LAN file storage and email. 
> It's a P2 333mhz, with 512mb of RAM, which has been just fine for my needs.
>
> Using Postfix for mail delivery; the OS is Ubuntu 6.04.
>
> I've disabled Spamassassin, but still have the same problem.
>
> Running Mailscanner in debug, I get the following:
>
> root at fatman:/home/tom# /etc/init.d/mailscanner start
> In Debugging mode, not forking...
>
>
> >From the /var/log/mail.info (nothing in the mail.err or mail.warn):
>
> Mar  6 16:10:48 fatman MailScanner[7063]: MailScanner E-Mail Virus Scanner
> version 4.57.6 starting... 
> Mar  6 16:10:49 fatman MailScanner[7063]: Read 759 hostnames from the phishing
> whitelist 
> Mar  6 16:10:49 fatman MailScanner[7063]: Config: calling custom init function
> SQLBlacklist 
> Mar  6 16:10:49 fatman MailScanner[7063]: Starting up SQL Blacklist 
> Mar  6 16:10:50 fatman MailScanner[7063]: Read 0 blacklist entries 
> Mar  6 16:10:50 fatman MailScanner[7063]: Config: calling custom init function
> MailWatchLogging 
> Mar  6 16:10:50 fatman MailScanner[7063]: Started SQL Logging child 
> Mar  6 16:10:50 fatman MailScanner[7063]: Config: calling custom init function
> SQLWhitelist 
> Mar  6 16:10:50 fatman MailScanner[7063]: Starting up SQL Whitelist 
> Mar  6 16:10:50 fatman MailScanner[7063]: Read 18 whitelist entries 
> Mar  6 16:10:50 fatman MailScanner[7063]: Using locktype = flock 
>
> After about 20 minutes, the CPU is still at around 98-99% and using 450+MB of
> RAM (on my installation, Mailscanner uses 60-70MB of RAM per instance).
>
> I've tried removing/purging/reinstalling Mailscanner, but keep coming up with
> the same results.
>   

Jules

-- 
Julian Field MEng CITP CEng
www.MailScanner.info
Buy the MailScanner book at www.MailScanner.info/store

MailScanner customisation, or any advanced system administration help?
Contact me at Jules at Jules.FM

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PGP public key: http://www.jules.fm/julesfm.asc


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