hi
we are using Qmail 1.03 with LDAP ... and we have applied LDAP patch ... i
am now getting the "deferral:qmail-spawn_unabme_to_fork_(#4.3.0)" ... very
frequently .... also on Linux 7.0 we are getting error .... "bash: fork:
Resource temporarily unavailable" ......
the error message in maillog file is
Jul 25 09:50:23 mummail3 qmail: 996034823.354251 delivery 23: deferral:
qmail-spawn_unable_to_fork._(#4.3.0)
Jul 25 09:50:23 mummail3 qmail: 996034823.370976 status: local 0/35 remote
21/200
Jul 25 09:50:23 mummail3 qmail: 996034823.387715 delivery 24: deferral:
qmail-spawn_unable_to_fork._(#4.3.0)/
Jul 25 09:50:23 mummail3 qmail: 996034823.404424 status: local 0/35 remote
20/200
On Linux server while checking the resources it is observed that Qmail is
unable to close the TCP connection .... in the output of netstat command it
is observed that at any point of time almost 100 connections are in
"TIME_WAIT" state against 10 in ESTABLISHED state ....
I am attaching part of the netstat command out put ....
bash-2.04# netstat |more
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 mummail3.isp.:smtp 192.168.100.5:3331 TIME_WAIT
tcp 0 0 mummail3.isp.:smtp 192.168.100.5:3330 TIME_WAIT
tcp 0 0 mummail3.isp.:pop3 203.124.240.10:1513 TIME_WAIT
tcp 0 0 mummail3.isp.:pop3 192.168.100.88:1087 TIME_WAIT
We are using IBM LDAP is installed on AIX. After discussing with IBM, they
have concluded that the problem is due to Qmail failing to close its
connection with LDAP cleanly.
any help on this is wel come ...
thanks and regards
Himanshu
