hyperledger/fabric · error

failed to get config for channel [%s]: %w

Error message

failed to get config for channel [%s]: %w

What it means

connectChannelPeers: retrieving the channel's configuration (via the config query used to map members to endpoints) failed; the %w cause is wrapped, so the registry cannot (re)connect the channel's peers. Callers (Evaluate, lookupEndorser) fail the request.

Source

Thrown at internal/pkg/gateway/registry.go:390

// Connect to peers in channel, and add to the registry.  If a reconnection is required, then it must be removed
// from the registry first, using removeEndorser().
func (reg *registry) connectChannelPeers(channel string, force bool) error {
	reg.configLock.Lock() // take a write lock to populate the registry maps
	defer reg.configLock.Unlock()

	if !force && reg.channelInitialized[channel] {
		return nil
	}

	// get the remoteEndorsers for the channel
	peers := map[string]string{}
	for _, member := range reg.channelMembers(channel) {
		id := member.PKIid.String()
		peers[id] = member.PreferredEndpoint()
	}
	config, err := reg.discovery.Config(channel)
	if err != nil {
		return fmt.Errorf("failed to get config for channel [%s]: %w", channel, err)
	}
	for mspid, infoset := range reg.discovery.IdentityInfo().ByOrg() {
		var tlsRootCerts [][]byte
		if mspInfo, ok := config.GetMsps()[mspid]; ok {
			tlsRootCerts = append(tlsRootCerts, mspInfo.GetTlsRootCerts()...)
			tlsRootCerts = append(tlsRootCerts, mspInfo.GetTlsIntermediateCerts()...)
		}
		for _, info := range infoset {
			pkiID := info.PKIId
			if address, ok := peers[pkiID.String()]; ok {
				// add the peer to the peer map - except the local peer, which seems to have an empty address
				if _, ok := reg.remoteEndorsers[address]; !ok && len(address) > 0 {
					// this peer is new - connect to it and add to the remoteEndorsers registry
					endorser, err := reg.endpointFactory.newEndorser(pkiID, address, mspid, tlsRootCerts)
					if err != nil {
						return err
					}
					reg.remoteEndorsers[address] = endorser

View on GitHub (pinned to 2736b63f8f)

Solutions

1. Check peer connectivity to ordering service/other peers for config data
2. Retry once transient network issues resolve
3. Verify the channel exists and the peer has joined it

When it happens

Trigger: Thrown at internal/pkg/gateway/registry.go:390 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of hyperledger/fabric@2736b63f8f (2026-09-04). Data as JSON: /api/errors/cedf46d65ca73f58. Report an issue: GitHub.