[Pacemaker] MySQL not starting

[Stallmann, Andreas]

Hi!

I try to get a mysql master / slave setup running, according to http://www.e-rave.nl/prm-mysql-ha-and-pacemaker-in-the-mix. I had this setup running already, but now as we are switching from SLES to Ubuntu, I have to set it up anew.

Here’s the primitive for mysql:

primitive p_mysql ocf:heartbeat:mysql \
       params config="/etc/mysql/my.cnf" log="/var/log/mysql.err" additional_parameters="--debug" pid="/var/run/mysqld/mysqld.pid" socket="/var/run/mysqld/mysqld.sock" replication_user="repl" replication_passwd="***" max_slave_lag="15" evict_outdated_slaves="false" binary="/usr/sbin/mysqld" test_user="root" test_passwd="***" \
        op monitor interval="20s" role="Master" OCF_CHECK_LEVEL="1" \
        op monitor interval="30s" role="Slave" timeout="30s" OCF_CHECK_LEVEL="1" \
        op start interval="0" timeout="120s" \
        op stop interval="0" timeout="120s"

and here’s the master-slave-resource:

ms ms_MySQL p_mysql \
        meta master-max="1" master-node-max="1" clone-max="2" clone-node-max="1" notify="true" globally-unique="false

Some part of it works, as the replication info is available:

property $id="mysql_replication" \
        replication_info="10.10.0.101|mysql-bin.000005|107"

Still, the agent fails, as crm_mon reports:

Failed actions:
    p_mysql:0_start_0 (node=proto-cms-appl01, call=22, rc=-2, status=Timed Out): unknown exec error
    p_mysql:1_start_0 (node=proto-cms-appl02, call=21, rc=-2, status=Timed Out): unknown exec error

Starting mysql by hand with service mysql start works nicely, while ocf-tester –v –n p_mysql –o … /usr/lib…/mysql keeps on reporting

mysql[20688]: ERROR: MySQL is not running

and never (!) ends, unless it is killed via CTRL-C.

I find nothing of any (obvious) relevance in /var/log/syslog besides

May 16 13:27:20 proto-cms-appl01 mysql[1300]: ERROR: ERROR 1210 (HY000) at line 1: Incorrect arguments to MASTER_HOST
May 16 13:27:20 proto-cms-appl01 mysql[1300]: ERROR: Failed to set master

which is from one hour ago.

mysqld.log, mysql.err, and mysql.log under /var/log/ stay empty, as well as the directory /var/log/mysql.

Any ideas?

Cheers,

Andreas
BTW:  Does anyone else feel, that “unknown exec error” is not the most informative way to report an error? It would be nice if the “verbosity” could somehow be increased. What do you think?
PS: Yves, if you happen to read this: Are there any updates due for your mysql resource agent? When will it be included into the regular pacemaker-resource-agents package?
--
CONET Solutions GmbH
Andreas Stallmann,
Theodor-Heuss-Allee 19, 53773 Hennef
Tel.: +49 2242 939-677, Fax: +49 2242 939-393
Mobil: +49 172 2455051
Internet: http://www.conet.de, mailto: AStallmann at CONET.DE<mailto:AStallmann at CONET.DE>



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