On 11/1/2010 12:59 AM, Russ Sanders wrote: > I have an Ubuntu Linux server running SpamAssassin Server version 3.2.4 > running > on Perl 5.8.8 with zlib support (Compress::Zlib 2.008). I have at least one > account that is having to process from 250 - 400 emails, 99% spam, per HOUR. > This works out to be approximately 8,000 emails per day. The spamassassin > just > can't keep up and it is backing the Queue upto 2500 messages. I have made an > adjustment so that the one user can have multiple spamd children running for > it, > but it doesn't seem to take on more that 2 spamd children. > > I have also recorded that scanning a single message appears to take > approximately 15 seconds. I have adjusted the timeout to 5 seconds, but it > still appears to be taking 12 - 20 second per message. This works out to 4 > per > minute, or 240 per hour. So, of course, it can't keep up if it has 450 per > hour > coming at it. > > The system is a basic Linode running Ubuntu Linux 8.04 with 512M of memory. > I would like to adjust appropriately > > Number of Max Children > Number of Spare Children > Number of spamd services per account (upto max children if possible) > TimeOut on Scanning of the eMail > > Suggestions will be appreciated.
Do you have any large 3rd party rulesets? If so, try removing them temporarily and see if it runs faster. Make sure you have a local caching DNS server to speed up blacklist queries. Check your memory usage. It sounds like you should have enough for 5 children, but it all depends on how much other stuff is running. If the system starts using swap, SA's performance takes a serious nosedive. If that is the case, either reduce the number of children or add memory. -- Bowie
