Hello,
I am running FreeBSD 4.9 (behavior also happened on 4.8), and
qmail-ldap-1.03-20030301.patch. I have to use this version to maintain
compatibility with the qmail-ldap-virtualpop3-20030101.patch which is a
requirement in our environment.
Everything works fine on the system, however now and then I notice a hung
qmail-pop3d or qmail-local process. It isn't taking much CPU (usually <10%
each), but it is not exiting. I've looked at the message its trying to
deliver (lsof to find the file its trying to write for qmail-local, or read
for qmail-pop3d) and the message is actually being delivered succesfully
(qmail-local) and is quite small. This seems to happen with random
messages, and I have not been able to find a pattern. This causes the
NetApp filer which the files are stored on to go from about 2000ops/sec to
about 5000ops/sec (or as many as 10k ops/sec if multiple processes are hung)
while this is happening. A kill to the process makes it go away and
everything comes back to normal.
I searched the archives for similar problems, and found one but it was not
quite the same, as the message is being delivered in my case, whereas in the
other case it was not being delivered.
Has anyone seen this before? If so, does anyone know how to fix this? Is
it an NFS issue, FreeBSD issue, qmail-ldap issue? As a side note, this
system is one of 2 FreeBSD machines in a mail cluster, and both are having
the problem. 2 Redhat 7.3 machines in the same cluster with the same patch
do not have this problem.
Thanks in advance,
-----------------
Andre Fortin, CCNA, MCSA, MCSE(W2K)
Systems Administrator
Persona Communications - Central Division
500 Barrydowne Rd.
Sudbury, Ontario
[EMAIL PROTECTED]
Tel.: (705)560-1560 ext. 266
