On 29/02/2008 12:35 AM, Shahzad Abid, Network Engineer, I.T., HO. wrote: > Dear List > > I am running qmail + SA + Clamav on FC 5, my problem is when ever > concurrent smtp connections cross 30+ SA gets slow and take too much > time to process mails through qmailscaner > > qmail-queue.log > =================================================================== > Fri, 29 Feb 2008 09:51:50 PKT:8005: +++ starting debugging for process > 8005 (ppid=8002) by uid=508 > Fri, 29 Feb 2008 10:11:50 PKT:8005: w_c: elapsed time from start > 1199.846234 secs > Fri, 29 Feb 2008 10:11:50 PKT:8005: g_e_h: no sender and no recips, from > via SMTP from 202.76.109.59. Dropping. > Fri, 29 Feb 2008 10:11:50 PKT:8005: ------ Process 8005 finished. Total > of 1199.88143 secs > ================================================================= > > To remove this problem I kill all qmail-smtp processes. I need its > permanent solution.
Make sure you're not hitting swap (30 concurrent instances of SA may take over 1GB of memory). Swap thrashing will destroy message throughput. Daryl
