// 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
}
// 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
}