Hello,
On 07/22/2016 02:14 PM, Da Shi Cao wrote:
The manual "Pacemaker 1.1 Clusters from Scratch" gives the false impression that gfs2
relies only on dlm, but I cannot make it work without gfs_controld. Again this little daemon is
heavily coupled with cman. I think it is quite hard to use gfs2 in a cluster build only using
"pacemaker+corosync"! Am I wrong?
A big doubt is, why do you make everything from scratch rather than
having a try on a recent OS release?
No matter why, it's a good start point from trying out a distribution
that supports HA solution. Trust me,
it's very easy to setup a cluster filesystem (gfs2 or ocfs2) on openSUSE
or fedora.
Cheers,
Eric
Thanks a lot!
Dashi Cao
________________________________________
From: Da Shi Cao <[email protected]>
Sent: Thursday, July 21, 2016 9:31:51 PM
To: Cluster Labs - All topics related to open-source clustering welcomed
Subject: Re: [ClusterLabs] agent ocf:pacemaker:controld
I've built the dlm_tool suite using the source from
https://git.fedorahosted.org/cgit/dlm.git/log/. The resource uisng
ocf:pacemaker:controld will always fail to start because of timeout, even if
start timeout is set to 120s! But if dlm_controld is first started outside the
cluster management, then the resource will show up and stay well!
Another question is what's the difference of dlm_controld and gfs_controld?
Must they both be present if a cluster gfs file system is mounted?
Thanks a lot!
Dashi Cao
________________________________________
From: Da Shi Cao <[email protected]>
Sent: Wednesday, July 20, 2016 4:47:31 PM
To: Cluster Labs - All topics related to open-source clustering welcomed
Subject: Re: [ClusterLabs] agent ocf:pacemaker:controld
Thank you all for the information about dlm_controld. I will make a try using
https://git.fedorahosted.org/cgit/dlm.git/log/ .
Dashi Cao
________________________________________
From: Jan Pokorný <[email protected]>
Sent: Monday, July 18, 2016 8:47:50 PM
To: Cluster Labs - All topics related to open-source clustering welcomed
Subject: Re: [ClusterLabs] agent ocf:pacemaker:controld
On 18/07/16 07:59, Da Shi Cao wrote:
dlm_controld is very tightly coupled with cman.
Wrong assumption.
In fact, support for shipping ocf:pacemaker:controld has been
explicitly restricted to cases when CMAN logic (specifically the
respective handle-all initscript that is in turn, in that limited use
case, triggered from pacemaker's proper one and, moreover, takes
care of dlm_controld management on its own so any subsequent attempts
to do the same would be ineffective) is _not_ around:
https://github.com/ClusterLabs/pacemaker/commit/6a11d2069dcaa57b445f73b52f642f694e55caf3
(accidental syntactical typos were fixed later on:
https://github.com/ClusterLabs/pacemaker/commit/aa5509df412cb9ea39ae3d3918e0c66c326cda77)
I have built a cluster purely with
pacemaker+corosync+fence_sanlock. But if agent
ocf:pacemaker:controld is desired, dlm_controld must exist! I can
only find it in cman.
Can the command dlm_controld be obtained without bringing in cman?
To recap what others have suggested:
On 18/07/16 08:57 +0100, Christine Caulfield wrote:
There should be a package called 'dlm' that has a dlm_controld suitable
for use with pacemaker.
On 18/07/16 17:26 +0800, Eric Ren wrote:
DLM upstream hosted here:
https://git.fedorahosted.org/cgit/dlm.git/log/
The name of DLM on openSUSE is libdlm.
--
Jan (Poki)
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Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs: http://bugs.clusterlabs.org
_______________________________________________
Users mailing list: [email protected]
http://clusterlabs.org/mailman/listinfo/users
Project Home: http://www.clusterlabs.org
Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs: http://bugs.clusterlabs.org
_______________________________________________
Users mailing list: [email protected]
http://clusterlabs.org/mailman/listinfo/users
Project Home: http://www.clusterlabs.org
Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs: http://bugs.clusterlabs.org
