openstack
/
charm-percona-cluster
Code Issues Proposed changes

Create mysql resource to monitor the daemon 

This new pcmkr resource will take care of keep running mysqld and if it can't
then it will migrate the vip to a node where it is.
This commit is contained in:
Felipe Reyes 2015-03-04 11:42:47 -03:00
parent 85aa06aa00
commit fe1b6d4dbd
2 changed files with 17 additions and 11 deletions
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27
hooks/percona_hooks.py
View File

@ -73,14 +73,11 @@ from charmhelpers.contrib.network.ip import (
hooks = Hooks()
LEADER_RES = 'grp_percona_cluster'
RES_MYSQL_PARAMS = ('params config="/etc/my.cnf" '
'pid="/var/lib/mysql/mysqld.pid" '
RES_MYSQL_PARAMS = ('params config="/etc/mysql/my.cnf" '
'pid="/var/run/mysqld/mysqld.pid" '
'socket="/var/run/mysqld/mysqld.sock" '
'replication_user="sstuser" '
'replication_passwd="%(sstpsswd)s" '
'max_slave_lag="60" '
'evict_outdated_slaves="false" '
'binary="/usr/libexec/mysqld" '
'max_slave_lag="60" ' # default is 3600
'binary="/usr/sbin/mysqld" '
'op monitor interval="5s" role="Master" '
'OCF_CHECK_LEVEL="1" '
'op monitor interval="2s" role="Slave" '
@ -405,20 +402,28 @@ def ha_relation_joined():
(vip, vip_cidr, vip_iface)
resources = {'res_mysql_vip': res_mysql_vip,
'res_mysql': 'ocf:percona:mysql'}
'res_mysqld': 'ocf:percona:mysql'}
db_helper = get_db_helper()
sstpsswd = db_helper.get_mysql_password(username='sstuser')
cfg_passwd = config('sst-password')
sstpsswd = db_helper.get_mysql_password(username='sstuser',
password=cfg_passwd)
resource_params = {'res_mysql_vip': vip_params,
'res_mysql': RES_MYSQL_PARAMS % {'sstpsswd': sstpsswd}}
'res_mysqld': RES_MYSQL_PARAMS % {'sstpsswd': sstpsswd}}
groups = {'grp_percona_cluster': 'res_mysql_vip'}
clones = {'cl_mysqld': 'res_mysqld meta interleave=true'}
colocations = {'vip_mysqld': 'inf: res_mysqld res_mysql_vip role=Master'}
for rel_id in relation_ids('ha'):
relation_set(relation_id=rel_id,
corosync_bindiface=corosync_bindiface,
corosync_mcastport=corosync_mcastport,
resources=resources,
resource_params=resource_params,
groups=groups)
groups=groups,
clones=clones,
colocations=colocations)
@hooks.hook('ha-relation-changed')

1
templates/my.cnf
View File

@ -11,6 +11,7 @@ wsrep_provider_options = {{ wsrep_provider_options }}
datadir=/var/lib/mysql
user=mysql
pid_file = /var/run/mysqld/mysqld.pid
# Path to Galera library
wsrep_provider=/usr/lib/libgalera_smm.so