My comments are relative to the openais 0.80.5-15.1 RPM as obtained from the
pacemaker repo for RHEL5, and running on CentOS 5.3 with current patches.
On 24 Jun 09, Florian Haas submitted a patch against the openais init
script when running under RHEL distros regarding the chkconfig values.
The short version of that patch is:
8c8
< # chkconfig: - 20 20
---
> # chkconfig: - 75 05
However it turns out that this is not quite sufficient. The init script
also fails to create a lock file. Without that lockfile in place, the
openais init script is not invoked when a graceful shutdown/reboot is
performed on a node. This (in my configuration) ultimately results in
the node getting stonith'd before it has completely shut down, which is
impolite for DRBD et al.
Below is a patch which fixes this problem and has been tested (at least
on my cluster) to Do The Right Thing. It must be applied in *addition*
to Florian's patch, not instead of it:
*** openais.chkconfig Fri Oct 9 14:45:59 2009
--- openais.lockfile Sat Oct 10 10:07:13 2009
***************
*** 24,30 ****
do_force=0
prog="aisexec"
! lockfile="/var/lock/subsys/$prog"
SBD_CONFIG=/etc/sysconfig/sbd
SBD_BIN="/usr/sbin/sbd"
--- 24,33 ----
do_force=0
prog="aisexec"
!
! # lockfile base name must match name of this script, not $prog
! lockdir="/var/lock/subsys"
! lockfile="$lockdir/openais"
SBD_CONFIG=/etc/sysconfig/sbd
SBD_BIN="/usr/sbin/sbd"
***************
*** 87,92 ****
--- 90,102 ----
if
internal_status
then
+ # On Redhat systems, if the lockfile doesn't exist then when the
+ # system is shutting down it won't call this shutdown script.
+ # This can result in the node getting stonith'd when one
+ # attempts to do a graceful "shutdown -r now". Don't create the
+ # file unless the directory exists in case we're on a distro that
+ # doesn't use this mechanism.
+ [ -d $lockdir ] && touch $lockfile
echo "OK"
return 0
fi
BTW, this is my first migration from heartbeat 2 to pacemaker/openais.
Kudos to all who worked on the new stack. Thanks.
Devin
--
Everyone has a photographic memory. Some don't have film.
- Steven Wright
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