I have the same problem.
I'm running qmail as inbound relay server of a large site, te server is a
4xPII 400Mhz - 1Gb RAM, but when the tcpserver processes reach about ~400,
My linux box crash (Shared library errors and 'no more forks').
How can I increment this number ?
RDA.-
>RedHat 6.1 with qmail-1.03 and ucspi - 0.84.
>qmail-smtpd is run by tcpserver and the -c value is 2000. But as soon as
>it reaches 1247 sessions, it is not able to fork further processes, the
>error message is:
>
>tcpserver: warning: dropping connection, unable to fork: temporary
>failure
>
>This value (1247) does not change even when I increase RAM from 512MB to
>1GB or decrease it to 128MB. My question is what causes fork to not run
>a new process. I know it is a non qmail question. But someone over here
>who has already solved this problem may help me or point me to some URLs
>to troubleshoot this.
>
>Thanks.
>
>- Ashok
