hyperledger/fabric · error

ordering service endpoint %s is not valid or missing

Error message

ordering service endpoint %s is not valid or missing

What it means

For commands that need to talk to the ordering service (create/fetch), InitCmdFactory validates the ordering endpoint as host:port. If the configured ordering endpoint does not split into exactly two colon-separated parts, it is malformed or missing and the command cannot establish a deliver connection to the orderer.

Source

Thrown at internal/peer/channel/channel.go:173

		// "peer.tls.rootcert.file"
		cf.EndorserClient, err = common.GetEndorserClientFnc(common.UndefinedParamValue, common.UndefinedParamValue)
		if err != nil {
			return nil, errors.WithMessage(err, "error getting endorser client for channel")
		}
	}

	// for fetching blocks from a peer
	if isPeerDeliverRequired {
		cf.DeliverClient, err = common.NewDeliverClientForPeer(channelID, cf.Signer, bestEffort)
		if err != nil {
			return nil, errors.WithMessage(err, "error getting deliver client for channel")
		}
	}

	// for create and fetch, we need the orderer as well
	if isOrdererRequired {
		if len(strings.Split(common.OrderingEndpoint, ":")) != 2 {
			return nil, errors.Errorf("ordering service endpoint %s is not valid or missing", common.OrderingEndpoint)
		}
		cf.DeliverClient, err = common.NewDeliverClientForOrderer(channelID, cf.Signer, bestEffort)
		if err != nil {
			return nil, err
		}
	}

	logger.Infof("Endorser and orderer connections initialized")
	return cf, nil
}

View on GitHub (pinned to 2736b63f8f)

Solutions

1. Pass a valid endpoint: peer channel create -o orderer.example.com:7050 ...
2. Check that the --orderer flag or ORDERER_CFG_PATH/env-driven config supplies both host and port.
3. Fix shell variables so they are not empty when interpolated into -o.

Example fix

// before
peer channel create -c mychannel -f mychannel.tx
// after
peer channel create -o orderer.example.com:7050 -c mychannel -f mychannel.tx

ORDERER="orderer.example.com:7050"
if [[ "$ORDERER" != *:* ]] || [[ "$(echo "$ORDERER" | tr -cd ':' | wc -c)" -ne 1 ]]; then
  echo "error: ordering endpoint must be host:port" >&2; exit 1
fi

function isValidOrdererEndpoint(ep) {
  const parts = ep.split(':');
  return parts.length === 2 && parts[0].length > 0 && /^[0-9]+$/.test(parts[1]);
}

cf, err := channel.InitCmdFactory(channel.EndorserNotRequired, channel.PeerDeliverNotRequired, channel.OrdererRequired)
if err != nil {
    return fmt.Errorf("check --orderer flag (host:port): %w", err)
}

When it happens

Trigger: Running `peer channel create` or `peer channel fetch` without -o/--orderer, or with a malformed value like 'orderer.example.com' (no port) or 'orderer:7050:extra'.

Common situations: Omitting -o in scripts; port dropped when templating configs; YAML/env variable interpolation leaving the endpoint blank; IPv6 literal addresses not bracketed correctly.

Related errors

• timeout waiting for channel creation
• didn't receive a response within %v
• chaincode type not supported: %s
• failed to copy metadataDir directory folder: %s
• failed to create target folder for connection.json: %s

AI-assisted analysis of hyperledger/fabric@2736b63f8f (2026-09-04). Data as JSON: /api/errors/999183a2fdab4259. Report an issue: GitHub.