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<div style="direction: ltr;font-family: Arial;color: #000000;font-size: 10pt;">Hi,<br>
<br>
I have a Active/Passive configuration with a drbd mast/slave resource:<br>
<br>
MDA1PFP-S01 14:40:27 1803 0 ~ # pcs status<br>
Cluster name: MDA1PFP<br>
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<br>
Stack: corosync<br>
Current DC: MDA1PFP-PCS02 (version 1.1.13-10.el7-44eb2dd) - partition with quorum<br>
2 nodes and 7 resources configured<br>
<br>
Online: [ MDA1PFP-PCS01 MDA1PFP-PCS02 ]<br>
<br>
Full list of resources:<br>
<br>
Master/Slave Set: drbd1_sync [drbd1]<br>
Masters: [ MDA1PFP-PCS02 ]<br>
Slaves: [ MDA1PFP-PCS01 ]<br>
mda-ip (ocf::heartbeat:IPaddr2): Started MDA1PFP-PCS02<br>
Clone Set: ping-clone [ping]<br>
Started: [ MDA1PFP-PCS01 MDA1PFP-PCS02 ]<br>
ACTIVE (ocf::heartbeat:Dummy): Started MDA1PFP-PCS02<br>
shared_fs (ocf::heartbeat:Filesystem): Started MDA1PFP-PCS02<br>
<br>
PCSD Status:<br>
MDA1PFP-PCS01: Online<br>
MDA1PFP-PCS02: Online<br>
<br>
Daemon Status:<br>
corosync: active/disabled<br>
pacemaker: active/disabled<br>
pcsd: active/enabled<br>
<br>
MDA1PFP-S01 14:41:19 1804 0 ~ # pcs resource --full<br>
Master: drbd1_sync<br>
Meta Attrs: master-max=1 master-node-max=1 clone-max=2 clone-node-max=1 notify=true
<br>
Resource: drbd1 (class=ocf provider=linbit type=drbd)<br>
Attributes: drbd_resource=shared_fs <br>
Operations: start interval=0s timeout=240 (drbd1-start-interval-0s)<br>
promote interval=0s timeout=90 (drbd1-promote-interval-0s)<br>
demote interval=0s timeout=90 (drbd1-demote-interval-0s)<br>
stop interval=0s timeout=100 (drbd1-stop-interval-0s)<br>
monitor interval=60s (drbd1-monitor-interval-60s)<br>
Resource: mda-ip (class=ocf provider=heartbeat type=IPaddr2)<br>
Attributes: ip=192.168.120.20 cidr_netmask=32 nic=bond0 <br>
Operations: start interval=0s timeout=20s (mda-ip-start-interval-0s)<br>
stop interval=0s timeout=20s (mda-ip-stop-interval-0s)<br>
monitor interval=1s (mda-ip-monitor-interval-1s)<br>
Clone: ping-clone<br>
Resource: ping (class=ocf provider=pacemaker type=ping)<br>
Attributes: dampen=5s multiplier=1000 host_list=pf-pep-dev-1 timeout=1 attempts=3
<br>
Operations: start interval=0s timeout=60 (ping-start-interval-0s)<br>
stop interval=0s timeout=20 (ping-stop-interval-0s)<br>
monitor interval=1 (ping-monitor-interval-1)<br>
Resource: ACTIVE (class=ocf provider=heartbeat type=Dummy)<br>
Operations: start interval=0s timeout=20 (ACTIVE-start-interval-0s)<br>
stop interval=0s timeout=20 (ACTIVE-stop-interval-0s)<br>
monitor interval=10 timeout=20 (ACTIVE-monitor-interval-10)<br>
Resource: shared_fs (class=ocf provider=heartbeat type=Filesystem)<br>
Attributes: device=/dev/drbd1 directory=/shared_fs fstype=xfs <br>
Operations: start interval=0s timeout=60 (shared_fs-start-interval-0s)<br>
stop interval=0s timeout=60 (shared_fs-stop-interval-0s)<br>
monitor interval=20 timeout=40 (shared_fs-monitor-interval-20)<br>
<br>
MDA1PFP-S01 14:41:35 1805 0 ~ # pcs constraint --full<br>
Location Constraints:<br>
Resource: mda-ip<br>
Enabled on: MDA1PFP-PCS01 (score:50) (id:location-mda-ip-MDA1PFP-PCS01-50)<br>
Constraint: location-mda-ip<br>
Rule: score=-INFINITY boolean-op=or (id:location-mda-ip-rule)<br>
Expression: pingd lt 1 (id:location-mda-ip-rule-expr)<br>
Expression: not_defined pingd (id:location-mda-ip-rule-expr-1)<br>
Ordering Constraints:<br>
start ping-clone then start mda-ip (kind:Optional) (id:order-ping-clone-mda-ip-Optional)<br>
promote drbd1_sync then start shared_fs (kind:Mandatory) (id:order-drbd1_sync-shared_fs-mandatory)<br>
Colocation Constraints:<br>
ACTIVE with mda-ip (score:INFINITY) (id:colocation-ACTIVE-mda-ip-INFINITY)<br>
drbd1_sync with mda-ip (score:INFINITY) (rsc-role:Master) (with-rsc-role:Started) (id:colocation-drbd1_sync-mda-ip-INFINITY)<br>
shared_fs with drbd1_sync (score:INFINITY) (rsc-role:Started) (with-rsc-role:Master) (id:colocation-shared_fs-drbd1_sync-INFINITY)<br>
<br>
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?
<br>
<br>
Is there a way to get more debugging output from pcs, e.g. what triggered actions, which scores are computed and from which values?<br>
<br>
Best wishes,<br>
Jens<br>
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<div><font size="2"><span style="font-size:9pt"><b>Jens Auer </b>| <span style="background-color:rgb(255,255,255)">
CGI | Software-Engineer</span></span></font></div>
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