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Cleanup slave connection copy & merge

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The two cases are now separated. In switchover, the promotion and
demotion targets can swap connections between each other without worry.
In failover, the two connection lists must be merged semi-intelligently.

The slave connections of the two servers are now saved to the operation
descriptor object at the start of the operation. This allows slave status
updating during the operation.
This commit is contained in:
Esa Korhonen
2018-10-08 09:42:51 +03:00
parent 4d6f961695
commit c10fab977d
6 changed files with 249 additions and 144 deletions
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server/modules/monitor/mariadbmon/mariadbmon.hh
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@ -289,7 +289,6 @@ private:
ServerArray* redirected_slaves);
int redirect_slaves_ex(ClusterOperation& op, const ServerArray& slaves,
ServerArray* redirected_slaves);
bool switchover_start_slave(MariaDBServer* old_master, MariaDBServer* new_master);
bool start_external_replication(MariaDBServer* new_master, json_t** err_out);
std::string generate_change_master_cmd(const std::string& master_host, int master_port);
void wait_cluster_stabilization(ClusterOperation& op, const ServerArray& slaves);