[Pacemaker] How to tell pacemaker to start exportfs after filesystem resource

[Serge Dubrouski]

2011/6/21 Aleksander Malaev <amalaev at alt-lan.ru>

> Sure, I'm using order constraint.
> But it seems that it doesn't check monitor of the previous started
> resource.
>

Seems like you don't have an order constraint that would tie clone-share to
clone-fs making it to start sharing after mounting.


>
> 2011/6/21 Dejan Muhamedagic <dejanmm at fastmail.fm>
>
>> Hi,
>>
>> On Mon, Jun 20, 2011 at 11:40:04PM +0400, Александр Малаев wrote:
>> > Hello,
>> >
>> > I have configured pacemaker+ocfs2 cluster with shared storage connected
>> by
>> > FC.
>> > Now I need to setup NFS export in Active/Active mode and I added all
>> needed
>> > resources and wrote the order of starting.
>> > But then node is starting after reboot I got race condition between
>> > Filesystem resource and exportfs.
>> > Exportfs couldn't start because ocfs2 mountpoint isn't mounted yet.
>> >
>> > How to tell ExportFS resource to start then filesystem resource will be
>> > ready?
>>
>> Use the order constraint? Or did I miss something? You already
>> have some order constraints defined, so you should be able to
>> manage.
>>
>> Thanks,
>>
>> Dejan
>>
>> > crm config is the following:
>> > node msk-nfs-gw01
>> > node msk-nfs-gw02
>> > primitive nfs-kernel-server lsb:nfs-kernel-server \
>> >         op monitor interval="10s" timeout="30s"
>> > primitive ping ocf:pacemaker:ping \
>> >         params host_list="10.236.22.35" multiplier="100" name="ping" \
>> >         op monitor interval="20s" timeout="60s" \
>> >         op start interval="0" timeout="60s"
>> > primitive portmap upstart:portmap \
>> >         op monitor interval="10s" timeout="30s"
>> > primitive res-dlm ocf:pacemaker:controld \
>> >         op monitor interval="120s"
>> > primitive res-fs ocf:heartbeat:Filesystem \
>> >         params device="/dev/mapper/mpath0" directory="/media/media0"
>> > fstype="ocfs2" \
>> >         op monitor interval="120s"
>> > primitive res-nfs1-ip ocf:heartbeat:IPaddr2 \
>> >         params ip="10.236.22.38" cidr_netmask="27" nic="bond0" \
>> >         op monitor interval="30s"
>> > primitive res-nfs2-ip ocf:heartbeat:IPaddr2 \
>> >         params ip="10.236.22.39" cidr_netmask="27" nic="bond0" \
>> >         op monitor interval="30s"
>> > primitive res-o2cb ocf:pacemaker:o2cb \
>> >         op monitor interval="120s"
>> > primitive res-share ocf:heartbeat:exportfs \
>> >         params directory="/media/media0/nfsroot/export1" clientspec="
>> > 10.236.22.0/24" options="rw,async,no_subtree_check,no_root_squash"
>> fsid="1"
>> > \
>> >         op monitor interval="10s" timeout="30s" \
>> >         op start interval="10" timeout="40s" \
>> >         op stop interval="0" timeout="40s"
>> > primitive st-null stonith:null \
>> >         params hostlist="msk-nfs-gw01 msk-nfs-gw02"
>> > group nfs portmap nfs-kernel-server
>> > clone clone-dlm res-dlm \
>> >         meta globally-unique="false" interleave="true"
>> > clone clone-fs res-fs \
>> >         meta globally-unique="false" interleave="true"
>> > clone clone-nfs nfs \
>> >         meta globally-unique="false" interleace="true"
>> > clone clone-o2cb res-o2cb \
>> >         meta globally-unique="false" interleave="true"
>> > clone clone-share res-share \
>> >         meta globally-unique="false" interleave="true"
>> > clone fencing st-null
>> > clone ping_clone ping \
>> >         meta globally-unique="false"
>> > location nfs1-ip-on-nfs1 res-nfs1-ip 50: msk-nfs-gw01
>> > location nfs2-ip-on-nfs2 res-nfs2-ip 50: msk-nfs-gw02
>> > colocation col-fs-o2cb inf: clone-fs clone-o2cb
>> > colocation col-nfs-fs inf: clone-nfs clone-fs
>> > colocation col-o2cb-dlm inf: clone-o2cb clone-dlm
>> > colocation col-share-nfs inf: clone-share clone-nfs
>> > order ord-dlm-o2cb 0: clone-dlm clone-o2cb
>> > order ord-nfs-share 0: clone-nfs clone-share
>> > order ord-o2cb-fs 0: clone-o2cb clone-fs
>> > order ord-o2cb-nfs 0: clone-fs clone-nfs
>> > order ord-share-nfs1 0: clone-share res-nfs1-ip
>> > order ord-share-nfs2 0: clone-share res-nfs2-ip
>> > property $id="cib-bootstrap-options" \
>> >         dc-version="1.0.9-da7075976b5ff0bee71074385f8fd02f296ec8a3" \
>> >         cluster-infrastructure="openais" \
>> >         expected-quorum-votes="2" \
>> >         stonith-enabled="true" \
>> >         no-quorum-policy="ignore" \
>> >         last-lrm-refresh="1308040111"
>> >
>> > --
>> > Best Regards
>> > Alexander Malaev
>>
>> > _______________________________________________
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>> > http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>> >
>> > Project Home: http://www.clusterlabs.org
>> > Getting started:
>> http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
>> > Bugs:
>> http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
>>
>>
>
>
> --
> С уважением,
> Александр Малаев
> +7-962-938-9323
>
> _______________________________________________
> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs:
> http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
>
>


-- 
Serge Dubrouski.
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