Pekka Savola píše v Po 04. 08. 2008 v 12:40 +0300:
On Mon, 4 Aug 2008, Timo Sirainen wrote:
It doesn't seem to be that the current logic is working; there is no program with the PID that's in master.pid, and dovecot (1.0.7 + RHEL patches) refuses to start.
root: /root$ /sbin/service dovecot start Starting Dovecot Imap: Error: Dovecot is already running with PID 2746 (read from /var/run/dovecot/master.pid) Fatal: Invalid configuration in /etc/dovecot.conf [FAILED] root: /root$ more /var/run/dovecot/master.pid 2746 root: /root$ ps auxw | grep 2746 root 31714 0.0 0.1 4116 584 pts/1 R+ 20:19 0:00 grep 2746
SELinux perhaps? It checks this by kill()ing the process and seeing if it returns ESRCH. If not, it assumes the process exists. If you've SELinux perhaps it always return EPERM to the call..
'getenforce' says disabled, so no. This is pretty strange -- I looked at the code and basically duplicated the logic there and could not reproduce this problem with a smaller piece of code. And it doesn't seem to appear always in any case -- I killed dovecot with KILL signal (leaving the PID file behind), and after that it started up without problems. Unless you have other ideas what to look for, I guess this will remain a mystery..
There is a not-so-prefect init script installed for dovecot in RHEL, try using the one from Fedora (http://cvs.fedoraproject.org/viewcvs/rpms/dovecot/devel/dovecot.init?rev=1.6&view=auto). A new init script will be added in RHEL 5.3.
Dan-- Fedora and Red Hat package maintainer