[Pacemaker] how to test network access and fail over accordingly?

[Claus Denk]

I am having a similar problem, so let's wait for the experts, But in the meanwhile, try changing


location loc_pingd g_cluster_services rule -inf: not_defined p_pingd
or p_pingd lte 0

to

location loc_pingd g_cluster_services rule -inf: not_defined pingd
or pingd number:lte 0

and see what happens. As far as I have read, it is also more recommended to use the "ping"
resource instead of "pingd"...

kind regards, Claus






On 10/06/2010 05:45 AM, Craig Hurley wrote:
> Hello,
>
> I have a 2 node cluster, running DRBD, heartbeat and pacemaker in
> active/passive mode.  On both nodes, eth0 is connected to the main
> network, eth1 is used to connect the nodes directly to each other.
> The nodes share a virtual IP address on eth0.  Pacemaker is also
> controlling a custom service with an LSB compliant script in
> /etc/init.d/.  All of this is working fine and I'm happy with it.
>
> I'd like to configure the nodes so that they fail over if eth0 goes
> down (or if they cannot access a particular gateway), so I tried
> adding the following (as per
> http://www.clusterlabs.org/wiki/Example_configurations#Set_up_pingd)
>
> primitive p_pingd ocf:pacemaker:pingd params host_list=172.20.0.254 op
> monitor interval=15s timeout=5s
> clone c_pingd p_pingd meta globally-unique=false
> location loc_pingd g_cluster_services rule -inf: not_defined p_pingd
> or p_pingd lte 0
>
> ... but when I do add that, all resource are stopped and they don't
> come back up on either node.  Am I making a basic mistake or do you
> need more info from me?
>
> All help is appreciated,
> Craig.
>
>
> pacemaker
> Version: 1.0.8+hg15494-2ubuntu2
>
> heartbeat
> Version: 1:3.0.3-1ubuntu1
>
> drbd8-utils
> Version: 2:8.3.7-1ubuntu2.1
>
>
> rp at rpalpha:~$ sudo crm configure show
> node $id="32482293-7b0f-466e-b405-c64bcfa2747d" rpalpha
> node $id="3f2aac12-05aa-4ac7-b91f-c47fa28efb44" rpbravo
> primitive p_drbd_data ocf:linbit:drbd \
>          params drbd_resource="data" \
>          op monitor interval="30s"
> primitive p_fs_data ocf:heartbeat:Filesystem \
>          params device="/dev/drbd/by-res/data" directory="/mnt/data"
> fstype="ext4"
> primitive p_ip ocf:heartbeat:IPaddr2 \
>          params ip="172.20.50.3" cidr_netmask="255.255.0.0" nic="eth0" \
>          op monitor interval="30s"
> primitive p_rp lsb:rp \
>          op monitor interval="30s" \
>          meta target-role="Started"
> group g_cluster_services p_ip p_fs_data p_rp
> ms ms_drbd p_drbd_data \
>          meta master-max="1" master-node-max="1" clone-max="2"
> clone-node-max="1" notify="true"
> location loc_preferred_master g_cluster_services inf: rpalpha
> colocation colo_mnt_on_master inf: g_cluster_services ms_drbd:Master
> order ord_mount_after_drbd inf: ms_drbd:promote g_cluster_services:start
> property $id="cib-bootstrap-options" \
>          dc-version="1.0.8-042548a451fce8400660f6031f4da6f0223dd5dd" \
>          cluster-infrastructure="Heartbeat" \
>          no-quorum-policy="ignore" \
>          stonith-enabled="false" \
>          expected-quorum-votes="2" \
>
>
> rp at rpalpha:~$ sudo cat /etc/ha.d/ha.cf
> node rpalpha
> node rpbravo
>
> keepalive 2
> warntime 5
> deadtime 15
> initdead 60
>
> mcast eth0 239.0.0.43 694 1 0
> bcast eth1
>
> use_logd yes
> autojoin none
> crm respawn
>
>
> rp at rpalpha:~$ sudo cat /etc/drbd.conf
> global {
>          usage-count no;
> }
> common {
>          protocol C;
>
>          handlers {}
>
>          startup {}
>
>          disk {}
>
>          net {
>                  cram-hmac-alg sha1;
>                  shared-secret "foobar";
>          }
>
>          syncer {
>                  verify-alg sha1;
>                  rate 100M;
>          }
> }
> resource data {
>          device /dev/drbd0;
>          meta-disk internal;
>          on rpalpha {
>                  disk /dev/mapper/rpalpha-data;
>                  address 192.168.1.1:7789;
>          }
>          on rpbravo {
>                  disk /dev/mapper/rpbravo-data;
>                  address 192.168.1.2:7789;
>          }
> }
>
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