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Corosync und Pacemaker

Hier werden Schnipsel gesammelt für eine Corosync + Pacemaker Anleitung.

Corosync Konfiguration

/etc/corosync/corosync.conf 
# Please read the openais.conf.5 manual page

totem {
	version: 2

	# How long before declaring a token lost (ms)
	token: 3000

	# How many token retransmits before forming a new configuration
	token_retransmits_before_loss_const: 10

	# How long to wait for join messages in the membership protocol (ms)
	join: 60

	# How long to wait for consensus to be achieved before starting a new round of membership configuration (ms)
	consensus: 1200

	# Turn off the virtual synchrony filter
	vsftype: none

	# Number of messages that may be sent by one processor on receipt of the token
	max_messages: 20

	# Limit generated nodeids to 31-bits (positive signed integers)
	clear_node_high_bit: yes

	# Disable encryption
 	secauth: off

	# How many threads to use for encryption/decryption
 	threads: 0

	# Optionally assign a fixed node id (integer)
	nodeid: 1234

	# This specifies the mode of redundant ring, which may be none, active, or passive.
 	rrp_mode: passive

 	interface {

		ringnumber: 0

		member {
			memberaddr: 10.10.222.1
		}		

		member {
			memberaddr: 10.10.222.2

		}		

		bindnetaddr: 10.10.222.0
		mcastport: 5405
	}

 	interface {

		ringnumber: 1

		member {
			memberaddr: 10.10.108.127
		}		

		member {
			memberaddr: 10.10.108.128

		}		

		bindnetaddr: 10.10.108.0
		mcastport: 5406
	}
	
	# Use UDP unicast
	transport: udpu

}

amf {
	mode: disabled
}

service {
 	# Load the Pacemaker Cluster Resource Manager
 	ver:       0
 	name:      pacemaker
}

aisexec {
        user:   root
        group:  root
}

logging {
        fileline: off
        to_stderr: yes
        to_logfile: yes
	logfile: /var/log/corosync/corosync.log
        to_syslog: no
	syslog_facility: daemon
        debug: off
        timestamp: on
        logger_subsys {
                subsys: AMF
                debug: off
                tags: enter|leave|trace1|trace2|trace3|trace4|trace6
        }
}

MySQL-HA mit DRBD

node dbserver1-ha1.meinserver.de
node dbserver1-ha2.meinserver.de
primitive drbd_mysql ocf:linbit:drbd \
	params drbd_resource="mysql" \
	op monitor interval="15s" role="Master" \
	op monitor interval="17s" role="Slave"
primitive fs_mysql ocf:heartbeat:Filesystem \
	params device="/dev/drbd/by-res/mysql" directory="/var/lib/mysql" fstype="xfs"
primitive ip_memcached ocf:heartbeat:IPaddr2 \
	params ip="10.10.108.136" nic="eth1" \
	op monitor interval="10s" \
	meta is-managed="true"
primitive ip_mysql ocf:heartbeat:IPaddr2 \
	params ip="10.10.108.129" nic="eth1" \
	op monitor interval="10s"
primitive memcached lsb:memcached \
	meta is-managed="true" \
	op monitor on-fail="restart" interval="20s" \
	op start interval="0" timeout="5s" \
	op stop interval="0" timeout="5s" \
	meta target-role="Started"
primitive mysqld ocf:heartbeat:mysql \
	params binary="/usr/bin/mysqld_safe" client_binary="/usr/bin/mysql" config="/etc/mysql/my.cnf" pid="/var/run/mysqld/mysqld.pid" socket="/var/run/mysqld/mysqld.sock" datadir="/var/lib/mysql/data" test_table="mysql.user" test_user="wavecon_maint" test_passwd="usf29vh23FGZ6" \
	op monitor interval="20s" timeout="10s" \
	op start interval="0" timeout="240" \
	op stop interval="0" timeout="240" \
	meta migration-threshold="10"
primitive ping_intgw ocf:pacemaker:ping \
	params host_list="10.10.110.248 10.10.110.249" multiplier="1000" dampen="30" \
	op monitor interval="10s"
group memcachedgroup ip_memcached memcached \
	meta target-role="Started"
group mysqlgroup fs_mysql ip_mysql mysqld \
	meta target-role="Started" is-managed="true"
ms ms_drbd_mysql drbd_mysql \
	meta master-max="1" master-node-max="1" clone-max="2" clone-node-max="1" notify="true" target-role="Started" is-managed="true"
clone ping_intgw_clone ping_intgw \
	meta globally-unique="false"
location memcachedgroup_on_connected_node memcachedgroup \
	rule $id="memcachedgroup_on_connected_node-rule" -inf: not_defined pingd or pingd lte 0
location mysqlgroup_on_connected_node mysqlgroup \
	rule $id="mysqlgroup_on_connected_node-rule" -inf: not_defined pingd or pingd lte 0
colocation mysqlgroup_on_drbd inf: mysqlgroup ms_drbd_mysql:Master
order memcached_after_ip_memcached inf: ip_memcached memcached
order mysqlgroup_after_drbd inf: ms_drbd_mysql:promote mysqlgroup:start
property $id="cib-bootstrap-options" \
	dc-version="1.1.7-ee0730e13d124c3d58f00016c3376a1de5323cff" \
	cluster-infrastructure="openais" \
	expected-quorum-votes="2" \
	stonith-enabled="false" \
	last-lrm-refresh="1355412261" \
	no-quorum-policy="ignore"
rsc_defaults $id="rsc-options" \
	resource-stickiness="100"

MySQL-HA + MongoDB-HA + Memcached-HA mit DRBD

primitive drbd_mongodb ocf:linbit:drbd \
	params drbd_resource="mongodb0" \
	op monitor interval="29s" role="Master" \
	op monitor interval="31s" role="Slave"

primitive drbd_mysql ocf:linbit:drbd \
	params drbd_resource="mysql0" \
	op monitor interval="29s" role="Master" \
	op monitor interval="31s" role="Slave"

primitive fs_mongodb ocf:heartbeat:Filesystem \
	params device="/dev/drbd1" directory="/var/lib/mongodb" fstype="xfs"

primitive fs_mysql ocf:heartbeat:Filesystem \
	params device="/dev/drbd0" directory="/var/lib/mysql" fstype="xfs"

primitive ip_memcached ocf:heartbeat:IPaddr2 \
	params ip="10.10.149.11" cidr_netmask="32" nic="eth0" \
	op monitor interval="10s" \
	meta is-managed="true"

primitive ip_mongodb ocf:heartbeat:IPaddr2 \
	params ip="10.10.149.16" cidr_netmask="32" nic="eth0" \
	op monitor interval="10s" \
	meta is-managed="true"

primitive ip_mysql ocf:heartbeat:IPaddr2 \
	params ip="10.10.149.8" cidr_netmask="32" nic="eth0" \
	op monitor interval="10s" \
	meta is-managed="true"

primitive memcached lsb:memcached \
	meta is-managed="true" \
	op monitor on-fail="restart" interval="20s" \
	op start interval="0" timeout="15s" \
	op stop interval="0" timeout="15s"

primitive mongodb lsb:mongod \
	meta target-role="Started"

primitive mysql lsb:mysql \
	meta target-role="Started"

primitive ping_services1 ocf:pacemaker:ping \
	params host_list="10.10.148.26 10.10.148.49" multiplier="1000" dampen="30" \
	op monitor interval="10s"

group memcachedgroup ip_memcached memcached \
	meta target-role="Started"

group mongodbgroup fs_mongodb ip_mongodb mongodb \
	meta target-role="Started"

group mysqlgroup fs_mysql ip_mysql mysql \
	meta target-role="Started"

ms ms_drbd_mongodb drbd_mongodb \
	meta master-max="1" master-node-max="1" clone-max="2" clone-node-max="1" notify="true"

ms ms_drbd_mysql drbd_mysql \
	meta master-max="1" master-node-max="1" clone-max="2" clone-node-max="1" notify="true"

clone ping_services1_clone ping_services1 \
	meta globally-unique="false"

location memcachedgroup_on_connected_node memcachedgroup \
	rule $id="memcachedgroup_on_connected_node-rule" -inf: not_defined pingd or pingd lte 0

location mongodbgroup_on_connected_node mongodbgroup \
	rule $id="mongodbgroup_on_connected_node-rule" -inf: not_defined pingd or pingd lte 0

location mysqlgroup_on_connected_node mysqlgroup \
	rule $id="mysqlgroup_on_connected_node-rule" -inf: not_defined pingd or pingd lte 0

colocation mongodb_on_drbd inf: mongodbgroup ms_drbd_mongodb:Master
colocation mysql_on_drbd inf: mysqlgroup ms_drbd_mysql:Master

order memcached_after_ip_memcached inf: ip_memcached memcached
order mongodb_after_drbd inf: ms_drbd_mongodb:promote mongodbgroup:start
order mysql_after_drbd inf: ms_drbd_mysql:promote mysqlgroup:start

property $id="cib-bootstrap-options" \
	dc-version="1.1.7-ee0730e13d124c3d58f00016c3376a1de5323cff" \
	cluster-infrastructure="openais" \
	expected-quorum-votes="2" \
	stonith-enabled="false" \
	no-quorum-policy="ignore" \
	last-lrm-refresh="1434463669"

rsc_defaults $id="rsc-options" \
	resource-stickiness="100"
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