[Pacemaker] How to troubleshoot crm_mon not configured and /var/log/messages hard error

Charles Richard chachi.richard at gmail.com
Fri Sep 23 12:41:52 EDT 2011


I'm having an issue with pacemaker, mysql and drbd that I'm not sure how to
resolve and hoping for an idea how to go about it.

When i do crm_mon, i get:

[root at staging1 log]# crm_mon -1
Last updated: Fri Sep 23 13:31:05 2011
Stack: openais
Current DC: staging1 - partition with quorum
Version: 1.1.2-f059ec7ced7a86f18e5490b67ebf4a0b963bccfe
2 Nodes configured, 2 expected votes
3 Resources configured.

Node staging2: UNCLEAN (online)
Online: [ staging1 ]

Failed actions:
    drbd_mysql_monitor_0 (node=staging1, call=16, rc=6, status=complete):
not configured
    mysqld_monitor_0 (node=staging2, call=5, rc=1, status=complete): unknown
    mysqld_stop_0 (node=staging2, call=7, rc=4, status=complete):
insufficient privileges

In /var/log/messages, i have the following:

Sep 23 13:33:05 staging1 pengine: [14140]: ERROR: unpack_rsc_op: Hard error
- drbd_mysql_monitor_0 failed with rc=6: Preventing drbd_mysql from
re-starting anywhere in the cluster

How i can further troubleshoot those errors?

Also, for the secondary node, should there be a mysql/mysqld script in my
/etc/init.d ?  Articles suggest MySQL data and config should only be on the
primary node so i guess I'm not sure i understand what the secondary node
should have.

My resource file:

resource mysqld {

protocol C;

startup { wfc-timeout 0; degr-wfc-timeout 120; }

disk { on-io-error detach; }

on staging1 {

device /dev/drbd0;

disk /dev/vg_staging1/lv_data;

meta-disk internal;



on staging2 {

device /dev/drbd0;

disk /dev/vg_staging2/lv_data;

meta-disk internal;




My crm configuration:

crm(live)configure# show
node staging1
node staging2
primitive drbd_mysql ocf:linbit:drbd \
  params drbd_resource="mysqld" \
  op monitor interval="15s"
primitive fs_mysql ocf:heartbeat:Filesystem \
  params device="/dev/drbd/by-res/mysql"
directory="/opt/data/mysql/data/mysql" fstype="ext4"
primitive ip_mysql ocf:heartbeat:IPaddr2 \
  params ip="" nic="eth0"
primitive ipmi stonith:fence_ipmilan \
  op monitor interval="120s" \
  params passwd="xxxxxxxx" \
  meta target-role="Stopped"
primitive mysqld lsb:mysqld
group mysql fs_mysql ip_mysql mysqld
ms ms_drbd_mysql drbd_mysql \
  meta master-max="1" master-node-max="1" clone-max="2" clone-node-max="1"
property $id="cib-bootstrap-options" \
  dc-version="1.1.2-f059ec7ced7a86f18e5490b67ebf4a0b963bccfe" \
  cluster-infrastructure="openais" \
  expected-quorum-votes="2" \
  stonith-enabled="true" \

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