On 09/24/2014 04:31 PM, Klint Gore wrote:
From: [email protected] [[email protected]]
On Behalf Of Lars Ellenberg [[email protected]]
On Wed, Sep 24, 2014 at 10:17:34AM +1000, Klint Gore wrote:
[root@hans0 ~]# yum list installed |grep -E "(coro|pacemaker|drbd)"
corosync.x86_64 2.3.3-2.el7 @base
corosynclib.x86_64 2.3.3-2.el7 @base
drbd84-utils.x86_64 8.9.1-1.el7.elrepo @elrepo
In that case, it likely is "not installed", even.
"drbd*pacemaker" would contain our ocf agent script:
/usr/lib/ocf/resource.d/linbit/drbd
Looks like it exists. Same file exists on both nodes (md5 matches). Is there
a way to tell what version it is? Should there be other files as well?
[root@hans0 linbit]# pwd
/usr/lib/ocf/resource.d/linbit
[root@hans0 linbit]# ll
total 36
-rwxr-xr-x. 1 root root 33261 Aug 18 12:48 drbd
[root@hans0 linbit]# head drbd
#!/bin/bash
#
#
# OCF Resource Agent compliant drbd resource script.
#
# Copyright (c) 2009 LINBIT HA-Solutions GmbH,
# Copyright (c) 2009 Florian Haas, Lars Ellenberg
# Based on the Heartbeat drbd OCF Resource Agent by Lars Marowsky-Bree
# (though it turned out to be an almost complete rewrite)
#
[root@hans0 linbit]# md5sum drbd
0b95f50c91bd12744ec204d4f7849b12 drbd
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it may sound obvious, but did you try to start your cluster resources
manually without pacemaker running ? (up resource, set primary, mount, ...)
if it works manually, do you have any error in pacemaker's log files ?
("journalctl | grep -i error")
if there's nothing obvious in the log files, you can add the following
line in the ocf file on the DC:
set > /tmp/blah
that way you'll be able to find out what OCF_* variables are used and
you could then run the script manually with those variables exported and
see what's happening (don't do that on a production cluster).
a side note: elrepo packages drbd-utils into a single rpm, while fedora
(or you, should you build the rpm yourself) splits the functionality in
several rpms, eg.
drbd-udev
drbd-utils
drbd-pacemaker
...
here drbd-pacemaker provides the ocf resource, as well as the
stonith/fence scripts.
I have migrated a centos6/cman/pacemaker cluster to
centos7/corosync2/pacemaker and I don't have any problem except a weird
path issue when running more "low-level" drbd commands (eg. when
manually recovering from a split brain) - I'll probably file a bug when
I have time to test if the problem is still in the last rc.
ivan
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