Example #1
0
// Open runs the invalidation loop.
func (rci *RowcacheInvalidator) Open(dbname string, mysqld mysqlctl.MysqlDaemon) {
	// Perform an early check to see if we're already running.
	if rci.svm.State() == sync2.SERVICE_RUNNING {
		return
	}
	rp, err := mysqld.MasterPosition()
	if err != nil {
		panic(NewTabletError(ErrFatal, vtrpc.ErrorCode_INTERNAL_ERROR, "Rowcache invalidator aborting: cannot determine replication position: %v", err))
	}
	if mysqld.Cnf().BinLogPath == "" {
		panic(NewTabletError(ErrFatal, vtrpc.ErrorCode_INTERNAL_ERROR, "Rowcache invalidator aborting: binlog path not specified"))
	}
	err = rci.qe.ClearRowcache(context.Background())
	if err != nil {
		panic(NewTabletError(ErrFatal, vtrpc.ErrorCode_INTERNAL_ERROR, "Rowcahe is not reachable"))
	}

	rci.dbname = dbname
	rci.mysqld = mysqld
	rci.SetPosition(rp)

	ok := rci.svm.Go(rci.run)
	if ok {
		log.Infof("Rowcache invalidator starting, dbname: %s, path: %s, position: %v", dbname, mysqld.Cnf().BinLogPath, rp)
	} else {
		log.Infof("Rowcache invalidator already running")
	}
}
// Open runs the invalidation loop.
func (rci *RowcacheInvalidator) Open(dbname string, mysqld mysqlctl.MysqlDaemon) {
	rp, err := mysqld.MasterPosition()
	if err != nil {
		panic(NewTabletError(ErrFatal, "Rowcache invalidator aborting: cannot determine replication position: %v", err))
	}
	if mysqld.Cnf().BinLogPath == "" {
		panic(NewTabletError(ErrFatal, "Rowcache invalidator aborting: binlog path not specified"))
	}
	rci.dbname = dbname
	rci.mysqld = mysqld
	rci.SetPosition(rp)

	ok := rci.svm.Go(rci.run)
	if ok {
		log.Infof("Rowcache invalidator starting, dbname: %s, path: %s, position: %v", dbname, mysqld.Cnf().BinLogPath, rp)
	} else {
		log.Infof("Rowcache invalidator already running")
	}
}