// ExecuteVtctlCommand is part of the pb.VtctlServer interface
func (s *VtctlServer) ExecuteVtctlCommand(args *pb.ExecuteVtctlCommandRequest, stream pbs.Vtctl_ExecuteVtctlCommandServer) (err error) {
defer servenv.HandlePanic("vtctl", &err)
// create a logger, send the result back to the caller
logstream := logutil.NewChannelLogger(10)
logger := logutil.NewTeeLogger(logstream, logutil.NewConsoleLogger())
// send logs to the caller
wg := sync.WaitGroup{}
wg.Add(1)
go func() {
for e := range logstream {
// Note we don't interrupt the loop here, as
// we still need to flush and finish the
// command, even if the channel to the client
// has been broken. We'll just keep trying.
stream.Send(&pb.ExecuteVtctlCommandResponse{
Event: logutil.LoggerEventToProto(&e),
})
}
wg.Done()
}()
// create the wrangler
wr := wrangler.New(logger, s.ts, tmclient.NewTabletManagerClient(), time.Duration(args.LockTimeout))
// execute the command
err = vtctl.RunCommand(stream.Context(), wr, args.Args)
// close the log channel, and wait for them all to be sent
close(logstream)
wg.Wait()
return err
}
func (s *server) Backup(request *tabletmanagerdatapb.BackupRequest, stream tabletmanagerservicepb.TabletManager_BackupServer) error {
ctx := callinfo.GRPCCallInfo(stream.Context())
return s.agent.RPCWrapLockAction(ctx, actionnode.TabletActionBackup, request, nil, true, func() error {
// create a logger, send the result back to the caller
logger := logutil.NewChannelLogger(10)
wg := sync.WaitGroup{}
wg.Add(1)
go func() {
for e := range logger {
// Note we don't interrupt the loop here, as
// we still need to flush and finish the
// command, even if the channel to the client
// has been broken. We'll just keep trying
// to send.
stream.Send(&tabletmanagerdatapb.BackupResponse{
Event: logutil.LoggerEventToProto(&e),
})
}
wg.Done()
}()
err := s.agent.Backup(ctx, int(request.Concurrency), logger)
close(logger)
wg.Wait()
return err
})
}