Mailing List Archive

Hello, i have found two problems on the bash script :
/usr/lib/ocf/resource.d/heartbeat/mysql on pacemaker.

Bug #1

The function bellow contains an error :

get_read_only() {
# Check if read-only is set
local read_only_state
read_only_state=`$MYSQL $MYSQL_OPTIONS_REPL \
-e "SHOW VARIABLES" | grep read_only | awk '{print $2}'`
if [ "$read_only_state" = "ON" ]; then
return 0
else
return 1
fi
}

*It doesn't catch the good var read_only, but static var innodb_read_only
which always on OFF. The op monitor fails permanently.*

*Fast Correction :*

get_read_only() {
# Check if read-only is set
local read_only_state
read_only_state=`$MYSQL $MYSQL_OPTIONS_REPL \
-e "SHOW VARIABLES" | grep -v '_read_only' | grep -v 'read_only_' |
grep 'read_only' | awk '{print $2}'`
if [ "$read_only_state" = "ON" ]; then
return 0
else
return 1
fi
}

Bug #2

The function set_master have a problem too. It doesn't set the port in the
SQL request "SET MASTER TO...". Mysql set it on the default port : 3306.

*The function set_master*

[...]
# Informs the MySQL server of the master to replicate
# from. Accepts one mandatory argument which must contain the host
# name of the new master host. The master must either be unchanged
# from the laste master the slave replicated from, or freshly
# reset with RESET MASTER.

ocf_run $MYSQL $MYSQL_OPTIONS_REPL \
-e "CHANGE MASTER TO MASTER_HOST='$new_master', \
MASTER_USER='$OCF_RESKEY_replication_user', \
MASTER_PASSWORD='$OCF_RESKEY_replication_passwd' $master_params"
rm -f $tmpfile
[...]

*The correction*

[...]
# Informs the MySQL server of the master to replicate
# from. Accepts one mandatory argument which must contain the host
# name of the new master host. The master must either be unchanged
# from the laste master the slave replicated from, or freshly
# reset with RESET MASTER.

ocf_run $MYSQL $MYSQL_OPTIONS_REPL \
-e "CHANGE MASTER TO MASTER_HOST='$new_master',
MASTER_PORT='$OCF_RESKEY_replication_port', \
MASTER_USER='$OCF_RESKEY_replication_user', \
MASTER_PASSWORD='$OCF_RESKEY_replication_passwd' $master_params"
rm -f $tmpfile
[...]


Have a good day.

--
*Arnaud Legrand*

Em@il : arnaud.legrand@ariadnext.com


*AriadNEXT* - *Secure Scan & Sign*
80 av des Buttes de Coësmes
35700 RENNES - FRANCE
*http://www.ariadnext.com <http://www.ariadnext.com>*

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