Hi,
On Fri, Aug 13, 2010 at 11:30:22AM -0600, Peter Morreale wrote:
>
> In preparation for a MySQL cluster, I have been developing a pacemaker
> configuration based on:
> http://www.drbd.org/users-guide/s-pacemaker-crm-drbd-backed-service.html.
> This is on SLES11 SP1, with the SLES11 SP1 HAE package installed. The
> nodes involved are two xen images named "sles11-2" and sles11-3".
>
> I am confused by the output from crm_mon. Note this is my first HA cluster
> so its not clear to me what I am looking at yet...
>
> First the current configuration:
>
> sles11-2:~ # crm configure show
> node sles11-2
> node sles11-3
> primitive drbd_r0 ocf:linbit:drbd \
> params drbd_resource="r0" \
> op monitor interval="15" start="240s"
start is not a monitor op attribute. I guess that you wanted to
say:
op start timeout="240s"
> primitive drbd_r1 ocf:linbit:drbd \
> params drbd_resource="r1" \
> op monitor interval="15" start="240s"
> primitive res_fs_r0 ocf:heartbeat:Filesystem \
> params options="rw,noatime" device="/dev/drbd0"
> directory="/var/lib/msyql" fstype="ext3"
> primitive res_fs_r1 ocf:heartbeat:Filesystem \
> params options="rw,noatime" device="/dev/drbd1" directory="/var/opt"
> fstype="ext3"
> primitive stone-resource stonith:external/xen0 \
> params hostlist="sles11-2:/etc/xen/vm/sles11-2
> sles11-3:/etc/xen/vm/sles11-3" dom0="silverton"
> ms ms_drbd_r0 drbd_r0 \
> meta master-max="1" master-node-max="1" clone-max="2"
> clone-node-max="1" notify="true"
> ms ms_drbd_r1 drbd_r1 \
> meta master-max="1" master-node-max="1" clone-max="2"
> clone-node-max="1" notify="true"
> colocation fs_on_drbd_r0 inf: res_fs_r0 ms_drbd_r0:Master
> colocation fs_on_drbd_r1 inf: res_fs_r1 ms_drbd_r1:Master
> order fs_after_drbd_r0 inf: ms_drbd_r0:promote res_fs_r0:start
> order fs_after_drbd_r1 inf: ms_drbd_r1:promote res_fs_r1:start
> property $id="cib-bootstrap-options" \
> dc-version="1.1.2-2e096a41a5f9e184a1c1537c82c6da1093698eb5" \
> cluster-infrastructure="openais" \
> expected-quorum-votes="2" \
> no-quorum-policy="ignore" \
> stonith-enabled="true"
>
>
> Note I have two DRBD-backed partitions in this configuration. Eventually I
> will group all the primitives together, for right now I'm trying to
> understand/believe that I have a grip on configuring....
>
>
> Now the output from crm_mon:
>
>
> sles11-2:~ # crm_mon -1
> ============
> Last updated: Fri Aug 13 11:15:37 2010
> Stack: openais
> Current DC: sles11-2 - partition with quorum
> Version: 1.1.2-2e096a41a5f9e184a1c1537c82c6da1093698eb5
> 2 Nodes configured, 2 expected votes
> 5 Resources configured.
> ============
>
> Online: [ sles11-2 sles11-3 ]
>
> stone-resource (stonith:external/xen0): Started sles11-2
> Master/Slave Set: ms_drbd_r0
> Masters: [ sles11-2 ]
> Slaves: [ sles11-3 ]
> Master/Slave Set: ms_drbd_r1
> Masters: [ sles11-2 ]
> Slaves: [ sles11-3 ]
> res_fs_r1 (ocf::heartbeat:Filesystem): Started sles11-2
>
> Failed actions:
> drbd_r0_monitor_0 (node=sles11-2, call=9, rc=6, status=complete): not
> configured
> drbd_r1_monitor_0 (node=sles11-2, call=10, rc=6, status=complete): not
> configured
> res_fs_r0_start_0 (node=sles11-2, call=15, rc=5, status=complete): not
> installed
> drbd_r0_monitor_0 (node=sles11-3, call=26, rc=6, status=complete): not
> configured
> drbd_r1_monitor_0 (node=sles11-3, call=27, rc=6, status=complete): not
> configured
> res_fs_r0_start_0 (node=sles11-3, call=18, rc=5, status=complete): not
> installed
> res_fs_r1_start_0 (node=sles11-3, call=35, rc=1, status=complete):
> unknown error
>
>
> I am confused by the "Failed Actions" section of the output.
> Why have these actions failed? Even after several minutes, the
> state has not changed.
>
> Note also that rcdrbd status on sles11-2 returns:
>
> sles11-2:~ # rcdrbd status
> drbd driver loaded OK; device status:
> version: 8.3.7 (api:88/proto:86-91)
> GIT-hash: ea9e28dbff98e331a62bcbcc63a6135808fe2917 build by p...@fat-tyre,
> 2010-01-13 17:17:27
> m:res cs ro ds p mounted fstype
> 0:r0 Connected Primary/Secondary UpToDate/UpToDate C
> 1:r1 Connected Primary/Secondary UpToDate/UpToDate C /var/opt ext3
>
> Why isn't /var/lib/mysql mounted, like /var/opt is?
You need to take a look at the logs. Look for messages from the
resource agents (drbd and Filesystem) and from lrmd.
Thanks,
Dejan
> THanks for any advice.
>
> Best
> -PWM
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