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MXS-1775 Add switchover_on_low_disk_space parameter

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This commit is contained in:
Johan Wikman
2018-06-06 11:23:31 +03:00
parent dc47835ef6
commit b2a190c2b8
2 changed files with 47 additions and 42 deletions
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73
server/modules/monitor/mariadbmon/mariadbmon.hh
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@ -106,50 +106,51 @@ protected:
void process_state_changes();
private:
unsigned long m_id; /**< Monitor ID */
ServerArray m_servers; /**< Servers of the monitor */
ServerInfoMap m_server_info; /**< Map from server base struct to MariaDBServer */
CycleMap m_cycles; /**< Map from cycle number to cycle member servers */
unsigned long m_id; /**< Monitor ID */
ServerArray m_servers; /**< Servers of the monitor */
ServerInfoMap m_server_info; /**< Map from server base struct to MariaDBServer */
CycleMap m_cycles; /**< Map from cycle number to cycle member servers */
// Values updated by monitor
MariaDBServer* m_master; /**< Master server for Master/Slave replication */
IdToServerMap m_servers_by_id; /**< Map from server id:s to MariaDBServer */
int64_t m_master_gtid_domain; /**< gtid_domain_id most recently seen on the master */
std::string m_external_master_host; /**< External master host, for fail/switchover */
int m_external_master_port; /**< External master port */
bool m_cluster_modified; /**< Has an automatic failover/rejoin been performed this loop? */
MariaDBServer* m_master; /**< Master server for Master/Slave replication */
IdToServerMap m_servers_by_id; /**< Map from server id:s to MariaDBServer */
int64_t m_master_gtid_domain; /**< gtid_domain_id most recently seen on the master */
std::string m_external_master_host; /**< External master host, for fail/switchover */
int m_external_master_port; /**< External master port */
bool m_cluster_modified; /**< Has an automatic failover/rejoin been performed this loop? */
// Replication topology detection settings
bool m_allow_cluster_recovery; /**< Allow failed servers to rejoin the cluster */
bool m_detect_replication_lag; /**< Monitor flag for MySQL replication heartbeat */
bool m_detect_multimaster; /**< Detect and handle multi-master topologies */
bool m_detect_stale_master; /**< Monitor flag for MySQL replication Stale Master detection */
bool m_detect_stale_slave; /**< Monitor flag for MySQL replication Stale Slave detection */
bool m_detect_standalone_master; /**< If standalone master are detected */
bool m_ignore_external_masters; /**< Ignore masters outside of the monitor configuration */
bool m_mysql51_replication; /**< Use MySQL 5.1 replication */
bool m_allow_cluster_recovery; /**< Allow failed servers to rejoin the cluster */
bool m_detect_replication_lag; /**< Monitor flag for MySQL replication heartbeat */
bool m_detect_multimaster; /**< Detect and handle multi-master topologies */
bool m_detect_stale_master; /**< Monitor flag for MySQL replication Stale Master detection */
bool m_detect_stale_slave; /**< Monitor flag for MySQL replication Stale Slave detection */
bool m_detect_standalone_master; /**< If standalone master are detected */
bool m_ignore_external_masters; /**< Ignore masters outside of the monitor configuration */
bool m_mysql51_replication; /**< Use MySQL 5.1 replication */
// Failover, switchover and rejoin settings
bool m_auto_failover; /**< Is automatic master failover is enabled? */
bool m_auto_rejoin; /**< Is automatic rejoin enabled? */
int m_failcount; /**< Numer of cycles master must be down before auto-failover begins */
std::string m_replication_user; /**< Replication user for CHANGE MASTER TO-commands */
std::string m_replication_password; /**< Replication password for CHANGE MASTER TO-commands */
uint32_t m_failover_timeout; /**< Time limit in seconds for master failover */
uint32_t m_switchover_timeout; /**< Time limit in seconds for master switchover */
bool m_verify_master_failure; /**< Is master failure is verified via slaves? */
int m_master_failure_timeout; /**< Master failure verification (via slaves) time in seconds */
ServerArray m_excluded_servers; /**< Servers banned for master promotion during auto-failover or
* autoselect switchover. */
std::string m_promote_sql_file; /**< File with sql commands which are ran to a server being promoted. */
std::string m_demote_sql_file; /**< File with sql commands which are ran to a server being demoted. */
bool m_enforce_read_only_slaves; /**< Should the monitor set read-only=1 on any slave servers. */
bool m_auto_failover; /**< Is automatic master failover is enabled? */
bool m_auto_rejoin; /**< Is automatic rejoin enabled? */
int m_failcount; /**< Numer of cycles master must be down before auto-failover begins */
std::string m_replication_user; /**< Replication user for CHANGE MASTER TO-commands */
std::string m_replication_password; /**< Replication password for CHANGE MASTER TO-commands */
uint32_t m_failover_timeout; /**< Time limit in seconds for master failover */
uint32_t m_switchover_timeout; /**< Time limit in seconds for master switchover */
bool m_verify_master_failure; /**< Is master failure is verified via slaves? */
int m_master_failure_timeout; /**< Master failure verification (via slaves) time in seconds */
ServerArray m_excluded_servers; /**< Servers banned for master promotion during auto-failover or
* autoselect switchover. */
std::string m_promote_sql_file; /**< File with sql commands which are ran to a server being promoted. */
std::string m_demote_sql_file; /**< File with sql commands which are ran to a server being demoted. */
bool m_enforce_read_only_slaves; /**< Should the monitor set read-only=1 on any slave servers. */
bool m_switchover_on_low_disk_space; /**< Should the monitor do a switchover on low disk space. */
// Other settings
std::string m_script; /**< Script to call when state changes occur on servers */
uint64_t m_events; /**< enabled events */
bool m_warn_set_standalone_master; /**< Log a warning when setting standalone master */
bool m_log_no_master; /**< Should it be logged that there is no master */
std::string m_script; /**< Script to call when state changes occur on servers */
uint64_t m_events; /**< enabled events */
bool m_warn_set_standalone_master; /**< Log a warning when setting standalone master */
bool m_log_no_master; /**< Should it be logged that there is no master */
enum slave_down_setting_t
{