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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