How many children process has spamd (-m option)? You could test setting 50 concurrency incoming connections in tcpserver and 52 for spamd.
From man spamd:
-m number, --max-children=number
Specify a maximum number of children to spawn. Spamd will wait until another child finishes before forking again. Meanwhile, incoming connections will be queued.
Please note that there is a OS specific maximum of connections that can be queued (Try perl -MSocket -e'print SOMAXCONN' to find this maximum). Also, this option causes spamd to create an extra pipe for each child.
Hi there,
I just tested this and I was still getting fork errors from tcpserver at around 20-22 connections with -m 52:
Mar 11 07:06:51 loki smtpd: 1079006811.868008 Cannot fork: Resource temporarily unavailable
Is there by any chance a limit to the number of processes FreeBSD can spawn in a certain time interval?
Thanks,
-Justin
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