Hello,
for testing purposes i wrote a policy-service for postfix as a shellscript.
My Script is working very well, iam happy with its functionality ;)
But unfortunately there is one problem when a lot of mails are incoming. the
shellscript just does some grepping in small files etc. and is giving back
a allowd result..
My Shellscript is spawned from master.cf like this:
policy-mycheck unix - n n - - spawn
user=nobody argv=nice -n 15 /usr/lib/postfix/mycheckscript.sh
When a lot of mails are incoming i got a high number of zombies. as a
consequence of this my system load gets really high.
Are there some general methods to avoid this?
to decrease number of zombies now i do a "exit 0" directly after sending my
answer to postfix.
as a result oft this now i get postfix warnings in maillog.
warning: premature end-of-input on private/policy-mycheck while reading
input attribute name
i do not understand this. script is exiting after sending answer to postfix,
why this warning about premature end of input?
also i wonder because this high number of zombies?
does somebody has some advices to avoid my problems? is a shellscript
practical to use as policy-service or is only a listening deamon the right
way?
Thanks,
Andre
