[Pacemaker] pacemaker won't start mysql in the second node

Liang.Ma at asc-csa.gc.ca Liang.Ma at asc-csa.gc.ca
Fri Jan 28 08:50:45 EST 2011 

Hi Dejan, thanks for your reply.

That's one of the problem. I don't see any logs in log file /var/log/mysql/error.log. I checked the permission of directories /var/run/mysqld and /var/log/mysql. In both nodes they are the same as

drwxr-xr-x 2 mysql root 40 2011-01-27 13:50 /var/run/mysqld/
drwxr-s--- 2 mysql adm 4096 2011-01-27 11:34 /var/log/mysql

By the way, under which user pacemaker runs, root or someone else?


Liang Ma
Contractuel | Consultant | SED Systems Inc. 
Ground Systems Analyst
Agence spatiale canadienne | Canadian Space Agency
6767, Route de l'Aéroport, Longueuil (St-Hubert), QC, Canada, J3Y 8Y9
Tél/Tel : (450) 926-5099 | Téléc/Fax: (450) 926-5083
Courriel/E-mail : [liang.ma at space.gc.ca]
Site web/Web site : [www.space.gc.ca ] 




-----Original Message-----
From: Dejan Muhamedagic [mailto:dejanmm at fastmail.fm] 
Sent: January 28, 2011 8:26 AM
To: The Pacemaker cluster resource manager
Subject: Re: [Pacemaker] pacemaker won't start mysql in the second node

Hi,

On Thu, Jan 27, 2011 at 11:51:31AM -0500, Liang.Ma at asc-csa.gc.ca wrote:
> 
> 
> Hi There,
> 
> I have set up a pair of ha LAMP servers using heartbeat, pacemaker and
> drbd on Ubuntu 10.04 LTS. Everything works fine until I upgraded
> mysql-server from 5.1.41-3ubuntu12.6 to 5.1.41-3ubuntu12.9. Now node 1
> (arsvr1) works still fine, but mysql on node 2 (arsvr2) won't start
> when I switch arsvr1 standby. The error message shown from "crm
> status" is
> 
> Failed actions:
> mysql_start_0 (node=arsvr2, call=32, rc=4, status=complete):
> insufficient privileges
> 
> No errors logged in /var/log/mysql/error.log at all.

I think that you should check directory permissions. The log
file should give you a hint.

Thanks,

Dejan


> drbd mysql partition mounted properly. If I go to
> /usr/lib/ocf/resource.d/heartbeat and set the OCF_RESKEY parameters, I
> have no problem to start mysql server by "./mysql start". But the
> resource mysql won't show up in crm status.
> 
> So looks somehow pacemaker fail to start resource mysql even before
> running the resource script.
> 
> Here is the configuration
> 
> node $id="bc6bf61d-6b5f-4307-85f3-bf7bb11531bb" arsvr2 \
> 	attributes standby="off"
> node $id="bf0e7394-9684-42b9-893b-5a9a6ecddd7e" arsvr1 \
> 	attributes standby="off"
> primitive apache2 lsb:apache2 \
> 	op start interval="0" timeout="60" \
> 	op stop interval="0" timeout="120" start-delay="15" \
> 	meta target-role="Started"
> primitive drbd_mysql ocf:linbit:drbd \
> 	params drbd_resource="r0" \
> 	op monitor interval="15s"
> primitive drbd_webfs ocf:linbit:drbd \
> 	params drbd_resource="r1" \
> 	op monitor interval="15s" \
> 	op start interval="0" timeout="240" \
> 	op stop interval="0" timeout="100"
> primitive fs_mysql ocf:heartbeat:Filesystem \
> 	params device="/dev/drbd/by-res/r0" directory="/var/lib/mysql" fstype="ext4" \
> 	op start interval="0" timeout="60" \
> 	op stop interval="0" timeout="120" \
> 	meta target-role="Started"
> primitive fs_webfs ocf:heartbeat:Filesystem \
> 	params device="/dev/drbd/by-res/r1" directory="/srv" fstype="ext4" \
> 	op start interval="0" timeout="60" \
> 	op stop interval="0" timeout="120" \
> 	meta target-role="Started"
> primitive ip1 ocf:heartbeat:IPaddr2 \
> 	params ip="10.10.10.193" nic="eth0" \
> 	op monitor interval="5s"
> primitive ip1arp ocf:heartbeat:SendArp \
> 	params ip="10.10.10.193" nic="eth0"
> primitive mysql ocf:heartbeat:mysql \
> 	params binary="/usr/bin/mysqld_safe" config="/etc/mysql/my.cnf"
> user="mysql" group="mysql" log="/var/log/mysql.log"
> pid="/var/run/mysqld/mysqld.pid" datadir="/var/lib/mysql"
> socket="/var/run/mysqld/mysqld.sock" \
> 	op monitor interval="30s" timeout="30s" \
> 	op start interval="0" timeout="120" \
> 	op stop interval="0" timeout="120" \
> 	meta target-role="Started"
> group MySQLDB fs_mysql mysql \
> 	meta target-role="Started"
> group WebServices ip1 ip1arp fs_webfs apache2 \
> 	meta target-role="Started"
> ms ms_drbd_mysql drbd_mysql \
> 	meta master-max="1" master-node-max="1" clone-max="2"
> clone-node-max="1" notify="true"
> ms ms_drbd_webfs drbd_webfs \
> 	meta master-max="1" master-node-max="1" clone-max="2"
> clone-node-max="1" notify="true" target-role="Started"
> colocation apache2_with_ip inf: apache2 ip1
> colocation apache2_with_mysql inf: apache2 ms_drbd_mysql:Master
> colocation apache2_with_webfs inf: apache2 ms_drbd_webfs:Master
> colocation fs_on_drbd inf: fs_mysql ms_drbd_mysql:Master
> colocation ip_with_ip_arp inf: ip1 ip1arp
> colocation mysql_on_drbd inf: MySQLDB ms_drbd_mysql:Master
> colocation web_with_mysql inf: MySQLDB WebServices
> colocation webfs_on_drbd inf: fs_webfs ms_drbd_webfs:Master
> colocation webfs_with_fs inf: fs_webfs fs_mysql
> order apache2-after-arp inf: ip1arp:start apache2:start
> order arp-after-ip inf: ip1:start ip1arp:start
> order fs-mysql-after-drbd inf: ms_drbd_mysql:promote fs_mysql:start
> order fs-webfs-after-drbd inf: ms_drbd_webfs:promote fs_webfs:start
> order ip-after-mysql inf: mysql:start ip1:start
> order mysql-after-fs-mysql inf: fs_mysql:start mysql:start
> property $id="cib-bootstrap-options" \
> 	dc-version="1.0.8-042548a451fce8400660f6031f4da6f0223dd5dd" \
> 	cluster-infrastructure="Heartbeat" \
> 	expected-quorum-votes="1" \
> 	stonith-enabled="false" \
> 	no-quorum-policy="ignore"
> rsc_defaults $id="rsc-options" \
> 	resource-stickiness="100"
> 
> Any help please?
> 
> Thanks,
> 
> Liang Ma
> Contractuel | Consultant | SED Systems Inc. 
> Ground Systems Analyst
> Agence spatiale canadienne | Canadian Space Agency
> 6767, Route de l'Aéroport, Longueuil (St-Hubert), QC, Canada, J3Y 8Y9
> Tél/Tel : (450) 926-5099 | Téléc/Fax: (450) 926-5083
> Courriel/E-mail : [liang.ma at space.gc.ca]
> Site web/Web site : [www.space.gc.ca ] 
> 
> 
> 
> 
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> 
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> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker

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