Hi,
I have a Active/Passive configuration with a drbd mast/slave resource:
MDA1PFP-S01 14:40:27 1803 0 ~ # pcs status
Cluster name: MDA1PFP
Last updated: Fri Sep 16 14:41:18 2016 Last change: Fri Sep 16 14:39:49
2016 by root via cibadmin on MDA1PFP-PCS01
Stack: corosync
Current DC: MDA1PFP-PCS02 (version 1.1.13-10.el7-44eb2dd) - partition with
quorum
2 nodes and 7 resources configured
Online: [ MDA1PFP-PCS01 MDA1PFP-PCS02 ]
Full list of resources:
Master/Slave Set: drbd1_sync [drbd1]
Masters: [ MDA1PFP-PCS02 ]
Slaves: [ MDA1PFP-PCS01 ]
mda-ip (ocf::heartbeat:IPaddr2): Started MDA1PFP-PCS02
Clone Set: ping-clone [ping]
Started: [ MDA1PFP-PCS01 MDA1PFP-PCS02 ]
ACTIVE (ocf::heartbeat:Dummy): Started MDA1PFP-PCS02
shared_fs (ocf::heartbeat:Filesystem): Started MDA1PFP-PCS02
PCSD Status:
MDA1PFP-PCS01: Online
MDA1PFP-PCS02: Online
Daemon Status:
corosync: active/disabled
pacemaker: active/disabled
pcsd: active/enabled
MDA1PFP-S01 14:41:19 1804 0 ~ # pcs resource --full
Master: drbd1_sync
Meta Attrs: master-max=1 master-node-max=1 clone-max=2 clone-node-max=1
notify=true
Resource: drbd1 (class=ocf provider=linbit type=drbd)
Attributes: drbd_resource=shared_fs
Operations: start interval=0s timeout=240 (drbd1-start-interval-0s)
promote interval=0s timeout=90 (drbd1-promote-interval-0s)
demote interval=0s timeout=90 (drbd1-demote-interval-0s)
stop interval=0s timeout=100 (drbd1-stop-interval-0s)
monitor interval=60s (drbd1-monitor-interval-60s)
Resource: mda-ip (class=ocf provider=heartbeat type=IPaddr2)
Attributes: ip=192.168.120.20 cidr_netmask=32 nic=bond0
Operations: start interval=0s timeout=20s (mda-ip-start-interval-0s)
stop interval=0s timeout=20s (mda-ip-stop-interval-0s)
monitor interval=1s (mda-ip-monitor-interval-1s)
Clone: ping-clone
Resource: ping (class=ocf provider=pacemaker type=ping)
Attributes: dampen=5s multiplier=1000 host_list=pf-pep-dev-1 timeout=1
attempts=3
Operations: start interval=0s timeout=60 (ping-start-interval-0s)
stop interval=0s timeout=20 (ping-stop-interval-0s)
monitor interval=1 (ping-monitor-interval-1)
Resource: ACTIVE (class=ocf provider=heartbeat type=Dummy)
Operations: start interval=0s timeout=20 (ACTIVE-start-interval-0s)
stop interval=0s timeout=20 (ACTIVE-stop-interval-0s)
monitor interval=10 timeout=20 (ACTIVE-monitor-interval-10)
Resource: shared_fs (class=ocf provider=heartbeat type=Filesystem)
Attributes: device=/dev/drbd1 directory=/shared_fs fstype=xfs
Operations: start interval=0s timeout=60 (shared_fs-start-interval-0s)
stop interval=0s timeout=60 (shared_fs-stop-interval-0s)
monitor interval=20 timeout=40 (shared_fs-monitor-interval-20)
MDA1PFP-S01 14:41:35 1805 0 ~ # pcs constraint --full
Location Constraints:
Resource: mda-ip
Enabled on: MDA1PFP-PCS01 (score:50) (id:location-mda-ip-MDA1PFP-PCS01-50)
Constraint: location-mda-ip
Rule: score=-INFINITY boolean-op=or (id:location-mda-ip-rule)
Expression: pingd lt 1 (id:location-mda-ip-rule-expr)
Expression: not_defined pingd (id:location-mda-ip-rule-expr-1)
Ordering Constraints:
start ping-clone then start mda-ip (kind:Optional)
(id:order-ping-clone-mda-ip-Optional)
promote drbd1_sync then start shared_fs (kind:Mandatory)
(id:order-drbd1_sync-shared_fs-mandatory)
Colocation Constraints:
ACTIVE with mda-ip (score:INFINITY) (id:colocation-ACTIVE-mda-ip-INFINITY)
drbd1_sync with mda-ip (score:INFINITY) (rsc-role:Master)
(with-rsc-role:Started) (id:colocation-drbd1_sync-mda-ip-INFINITY)
shared_fs with drbd1_sync (score:INFINITY) (rsc-role:Started)
(with-rsc-role:Master) (id:colocation-shared_fs-drbd1_sync-INFINITY)
As you can see I have defined a location constraint for the virtual ip mda-ip
and colocated the drbd master and filesystem. However, this constraint is
sometimes ignored. Can anybody point me to the correct configuration?
Is there a way to get more debugging output from pcs, e.g. what triggered
actions, which scores are computed and from which values?
Best wishes,
Jens
--
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