Example #1
0
// StopReplicationAndGetStatus stops MySQL replication, and returns the
// current status.
func (agent *ActionAgent) StopReplicationAndGetStatus(ctx context.Context) (*replicationdatapb.Status, error) {
	if err := agent.lock(ctx); err != nil {
		return nil, err
	}
	defer agent.unlock()

	// get the status before we stop replication
	rs, err := agent.MysqlDaemon.SlaveStatus()
	if err != nil {
		return nil, fmt.Errorf("before status failed: %v", err)
	}
	if !rs.SlaveIORunning && !rs.SlaveSQLRunning {
		// no replication is running, just return what we got
		return replication.StatusToProto(rs), nil
	}
	if err := agent.stopSlaveLocked(ctx); err != nil {
		return nil, fmt.Errorf("stop slave failed: %v", err)
	}
	// now patch in the current position
	rs.Position, err = agent.MysqlDaemon.MasterPosition()
	if err != nil {
		return nil, fmt.Errorf("after position failed: %v", err)
	}
	return replication.StatusToProto(rs), nil
}
Example #2
0
// SlaveStatus returns the replication status
// Should be called under RPCWrap.
func (agent *ActionAgent) SlaveStatus(ctx context.Context) (*replicationdatapb.Status, error) {
	status, err := agent.MysqlDaemon.SlaveStatus()
	if err != nil {
		return nil, err
	}
	return replication.StatusToProto(status), nil
}