[ClusterLabs] Bloody Newbie needs help for OCFS2 on pacemaker+corosync+pcs

emmanuel segura emi2fast at gmail.com
Tue Aug 2 09:50:59 EDT 2016


This link can help you
http://clusterlabs.org/doc/en-US/Pacemaker/1.1/html/Pacemaker_Explained/s-resource-supported.html

2016-08-02 15:37 GMT+02:00  <thl at it-hluchnik.de>:
> What do you mean? What is the "resource agent for using o2cb"? Please explain this a bit closer, I am just becoming familiar with all that stuff.
>
> Thanks for any help,
>
> Thomas Hluchnik
>
>
> Am Tuesday 02 August 2016 15:28:17 schrieb emmanuel segura:
>> why you don't use the resource agent for using o2cb? This script for
>> begin used with ocfs legacy mode.
>>
>> 2016-08-02 12:39 GMT+02:00 Kyle O'Donnell <kyleo at 0b10.mx>:
>> > er forgot
>> >
>> > primitive p_o2cb lsb:o2cb \
>> >         op monitor interval="10" timeout="30" \
>> >         op start interval="0" timeout="120" \
>> >         op stop interval="0" timeout="120"
>> >
>> > ----- Original Message -----
>> > From: "Kyle O'Donnell" <kyleo at 0b10.mx>
>> > To: "users" <users at clusterlabs.org>
>> > Sent: Tuesday, August 2, 2016 6:38:11 AM
>> > Subject: Re: [ClusterLabs] Bloody Newbie needs help for OCFS2 on        pacemaker+corosync+pcs
>> >
>> > primitive mysan ocf:heartbeat:Filesystem \
>> >         params device="/dev/myocsdevice" directory="/mymount" fstype="ocfs2" options="rw,noatime" \
>> >         op monitor timeout="40" interval="20" depth="0"
>> > clone cl_ocfs2mgmt p_o2cb \
>> >         meta interleave="true"
>> > clone cl_mysan mysan \
>> >         meta target-role="Started"
>> > order o_myresource_fs inf: cl_mysan myresource
>> >
>> >
>> > ----- Original Message -----
>> > From: thl at it-hluchnik.de
>> > To: "users" <users at clusterlabs.org>
>> > Sent: Tuesday, August 2, 2016 6:31:44 AM
>> > Subject: [ClusterLabs] Bloody Newbie needs help for OCFS2 on    pacemaker+corosync+pcs
>> >
>> > Hello everybody,
>> > I am new to pacemaker (and to this list), trying to understand pacemaker. For this I created three virtual hosts in my VirtualBox plus four shared disks, attached with each of the three nodes.
>> >
>> > I installed Oracle Enterprise Linux 7.1, did a "yum update" and got OEL7.2.
>> > Then I created four OCFS2 devices, working fine on all of my three nodes. They are started by systemd, using o2cb.service and ocfs2.service and running fine.
>> >
>> > Now I have started with learning pacemaker by "Clusters from Scratch" and meanwhile I have a virtual IP and a Webserver, this works fine so far.
>> >
>> > Next I want to control my OCFS2 devices by pacemaker, not by systemd. I searched the net and found some howtos, but they rely on crmsh instead of pcs. Most headaches come from DRBD which I don't understand at all. Why the hell does it seem that I need DRBD for running OCFS2?
>> >
>> > Is there anybody who can explain me how to get that running (after disabling o2cb.service & ocfs2.service):
>> >
>> > - create a resource which manages and controls o2cb stack
>> > - create another resource which manages OCFS2 mountpoints
>> > - create constraints for the Web Server (all Apache config / content shall be copied to one of the OCFS2 filesystems)
>> >
>> > The Web Server shall be dependent from availability of a mounted OCFS2 device. If it stops working, the Web Server must switch to a node where that mount point is OK.
>> >
>> > Thanks in advance for any help
>> >
>> > Thomas Hluchnik
>> >
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>>
>>
>>
>
>
>
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