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MXS-2011 Store current CHANGE MASTER config in router

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This commit is contained in:
Johan Wikman 2018-08-24 15:32:28 +03:00
parent d036668ffa
commit a43f2ce8fb
2 changed files with 18 additions and 13 deletions
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1
server/modules/routing/binlogrouter/blr.hh
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@ -788,6 +788,7 @@ struct ROUTER_INSTANCE: public MXS_ROUTER
enum binlog_storage_type storage_type;/*< Enables hierachical binlog file storage */
char *set_slave_hostname; /*< Send custom Hostname to Master */
ROUTER_INSTANCE *next;
ChangeMasterConfig config; /*< Current config. */
};
/** Master Semi-Sync capability */

30
server/modules/routing/binlogrouter/blr_slave.cc
View File

@ -164,7 +164,8 @@ static int blr_apply_change_master(ROUTER_INSTANCE* router,
char* error);
static int blr_handle_change_master(ROUTER_INSTANCE* router,
char *command,
char *error);
char *error,
ChangeMasterConfig* pNew_config);
static int blr_set_master_hostname(ROUTER_INSTANCE *router, const char *hostname);
static int blr_set_master_hostname(ROUTER_INSTANCE *router, const std::string& hostname);
static int blr_set_master_port(ROUTER_INSTANCE *router, int port);
@ -4401,17 +4402,19 @@ static char* get_connection_name(char* command, std::string* pConnection_name)
/**
* handle a 'change master' operation
*
* @param router The router instance
* @param command The change master SQL command
* @param error The error message, preallocated
* BINLOG_ERROR_MSG_LEN + 1 bytes
* @param router The router instance
* @param command The change master SQL command
* @param error The error message, preallocated
* BINLOG_ERROR_MSG_LEN + 1 bytes
* @pNew_config [out] The new config.
* @return 0 on success,
* 1 on success with new binlog, -1 on failure
*/
static
int blr_handle_change_master(ROUTER_INSTANCE* router,
char *command,
char *error)
char *error,
ChangeMasterConfig* pNew_config)
{
std::string connection_name;
command = get_connection_name(command, &connection_name);
@ -4438,13 +4441,12 @@ int blr_handle_change_master(ROUTER_INSTANCE* router,
return -1;
}
ChangeMasterConfig new_config;
if (!new_options.validate(router, error, &new_config))
if (!new_options.validate(router, error, pNew_config))
{
return -1;
}
return blr_apply_change_master(router, new_config, error);
return blr_apply_change_master(router, *pNew_config, error);
}
/*
@ -5496,7 +5498,8 @@ blr_test_handle_change_master(ROUTER_INSTANCE* router,
char *command,
char *error)
{
return blr_handle_change_master(router, bypass_change_master(command), error);
ChangeMasterConfig config;
return blr_handle_change_master(router, bypass_change_master(command), error, &config);
}
@ -8036,10 +8039,10 @@ static bool blr_handle_admin_stmt(ROUTER_INSTANCE *router,
int rc;
char error_string[BINLOG_ERROR_MSG_LEN + 1 + BINLOG_ERROR_MSG_LEN + 1] = "";
MasterServerConfig current_master;
blr_master_get_config(router, &current_master);
rc = blr_handle_change_master(router, brkb, error_string);
ChangeMasterConfig new_config;
rc = blr_handle_change_master(router, brkb, error_string, &new_config);
if (rc < 0)
{
@ -8059,7 +8062,7 @@ static bool blr_handle_admin_stmt(ROUTER_INSTANCE *router,
/* Write/Update master config into master.ini file */
ret = blr_file_write_master_config(router, error);
if (ret)
if (ret != 0)
{
/* file operation failure: restore config */
spinlock_acquire(&router->lock);
@ -8085,6 +8088,7 @@ static bool blr_handle_admin_stmt(ROUTER_INSTANCE *router,
/* Mark as active the master server struct */
spinlock_acquire(&router->lock);
router->config = new_config;
if (!router->service->dbref->server->is_active)
{
router->service->dbref->server->is_active = true;