1OCF_HEARTBEAT_MYSQL(7) OCF resource agents OCF_HEARTBEAT_MYSQL(7)
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6 ocf_heartbeat_mysql - Manages a MySQL database instance
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9 mysql [start | stop | status | monitor | promote | demote | meta-data |
10 validate-all]
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13 Resource script for MySQL. May manage a standalone MySQL database, a
14 clone set with externally managed replication, or a complete
15 master/slave replication setup. Note, when master/slave replication is
16 in use, the resource must be setup to use notifications. Set
17 'notify=true' in the metadata attributes when defining a MySQL
18 master/slave instance.
19 While managing replication, the default behavior is to use uname -n
21 values in the change master to command. Other IPs can be specified
22 manually by adding a node attribute
23 ${INSTANCE_ATTR_NAME}_mysql_master_IP giving the IP to use for
24 replication. For example, if the mysql primitive you are using is
25 p_mysql, the attribute to set will be p_mysql_mysql_master_IP.
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28 binary
29 Location of the MySQL server binary
30 (optional, string, default "/usr/bin/safe_mysqld")
32 client_binary
34 Location of the MySQL client binary
35 (optional, string, default "mysql")
37 config
39 Configuration file
40 (optional, string, default "/etc/my.cnf")
42 datadir
44 Directory containing databases
45 (optional, string, default "/var/lib/mysql")
47 user
49 User running MySQL daemon
50 (optional, string, default "mysql")
52 group
54 Group running MySQL daemon (for logfile and directory permissions)
55 (optional, string, default "mysql")
57 log
59 The logfile to be used for mysqld.
60 (optional, string, default "/var/log/mysqld.log")
62 pid
64 The pidfile to be used for mysqld.
65 (optional, string, default "/var/run/mysql/mysqld.pid")
67 socket
69 The socket to be used for mysqld.
70 (optional, string, default "/var/lib/mysql/mysql.sock")
72 test_table
74 Table to be tested in monitor statement (in database.table
75 notation)
76 (optional, string, default "mysql.user")
78 test_user
80 MySQL test user, must have select privilege on test_table
81 (optional, string, default "root")
83 test_passwd
85 MySQL test user password
86 (optional, string, no default)
88 enable_creation
90 If the MySQL database does not exist, it will be created
91 (optional, boolean, default 0)
93 additional_parameters
95 Additional parameters which are passed to the mysqld on startup.
96 (e.g. --skip-external-locking or --skip-grant-tables)
97 (optional, string, no default)
99 replication_user
101 MySQL replication user. This user is used for starting and stopping
102 MySQL replication, for setting and resetting the master host, and
103 for setting and unsetting read-only mode. Because of that, this
104 user must have SUPER, REPLICATION SLAVE, REPLICATION CLIENT,
105 PROCESS and RELOAD privileges on all nodes within the cluster.
106 Mandatory if you define a master-slave resource.
107 (optional, string, default "root")
109 replication_passwd
111 MySQL replication password. Used for replication client and slave.
112 Mandatory if you define a master-slave resource.
113 (optional, string, no default)
115 replication_port
117 The port on which the Master MySQL instance is listening.
118 (optional, string, default "3306")
120 replication_require_ssl
122 Enables SSL connection to local MySQL service for replication user.
123 i.e. if REQUIRE SSL for replication user in MySQL set, this should
124 be set to "true".
125 (optional, string, default "false")
127 replication_master_ssl_ca
129 The SSL CA certificate to be used for replication over SSL.
130 (optional, string, no default)
132 replication_master_ssl_cert
134 The SSL CA certificate to be used for replication over SSL.
135 (optional, string, no default)
137 replication_master_ssl_key
139 The SSL certificate key to be used for replication over SSL.
140 (optional, string, no default)
142 max_slave_lag
144 The maximum number of seconds a replication slave is allowed to lag
145 behind its master. Do not set this to zero. What the cluster
146 manager does in case a slave exceeds this maximum lag is determined
147 by the evict_outdated_slaves parameter.
148 (optional, integer, default 3600)
150 evict_outdated_slaves
152 If set to true, any slave which is more than max_slave_lag seconds
153 behind the master has its MySQL instance shut down. If this
154 parameter is set to false in a primitive or clone resource, it is
155 simply ignored. If set to false in a master/slave resource, then
156 exceeding the maximum slave lag will merely push down the master
157 preference so the lagging slave is never promoted to the new
158 master.
159 (optional, boolean, default false)
161 reader_attribute
163 An attribute that the RA can manage to specify whether a node can
164 be read from. This node attribute will be 1 if it's fine to read
165 from the node, and 0 otherwise (for example, when a slave has
166 lagged too far behind the master).
167 A typical example for the use of this attribute would be to tie a
169 set of IP addresses to MySQL slaves that can be read from.
170 This parameter is only meaningful in master/slave set
172 configurations.
173 (unique, optional, string, default "readable")
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177 This resource agent supports the following actions (operations):
178 start
180 Starts the resource. Suggested minimum timeout: 120s.
181 stop
183 Stops the resource. Suggested minimum timeout: 120s.
184 status
186 Performs a status check. Suggested minimum timeout: 60s.
187 monitor
189 Performs a detailed status check. Suggested minimum timeout: 30s.
190 Suggested interval: 20s.
191 monitor (Master role)
193 Performs a detailed status check. Suggested minimum timeout: 30s.
194 Suggested interval: 10s.
195 monitor (Slave role)
197 Performs a detailed status check. Suggested minimum timeout: 30s.
198 Suggested interval: 30s.
199 promote
201 Promotes the resource to the Master role. Suggested minimum
202 timeout: 120s.
203 demote
205 Demotes the resource to the Slave role. Suggested minimum timeout:
206 120s.
207 notify
209 Suggested minimum timeout: 90s.
210 validate-all
212 Performs a validation of the resource configuration. Suggested
213 minimum timeout: 5s.
214 meta-data
216 Retrieves resource agent metadata (internal use only). Suggested
217 minimum timeout: 5s.
218
220 The following is an example configuration for a mysql resource using
221 the crm(8) shell:
222 primitive p_mysql ocf:heartbeat:mysql \
224 op monitor depth="0" timeout="30s" interval="20s" \
225 op monitor role="Master" depth="0" timeout="30s" interval="10s" \
226 op monitor role="Slave" depth="0" timeout="30s" interval="30s"
227 ms ms_mysql p_mysql \
229 meta notify="true" interleave="true"
230
232 The following is an example configuration for a mysql resource using
233 pcs(8)
234 pcs resource create p_mysql ocf:heartbeat:mysql \
236 op monitor OCF_CHECK_LEVEL="0" timeout="30s" interval="20s" \
237 op monitor role="Master" OCF_CHECK_LEVEL="0" timeout="30s" interval="10s" \
238 op monitor role="Slave" OCF_CHECK_LEVEL="0" timeout="30s" interval="30s" promotable
239
241 http://clusterlabs.org/
242
244 ClusterLabs contributors (see the resource agent source for information
245 about individual authors)
246resource-agents UNKNOWN 11/03/2021 OCF_HEARTBEAT_MYSQL(7)