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

[Dejan Muhamedagic]

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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