hyperledger/fabric · error

No collection access policy filter computed for %v

Error message

No collection access policy filter computed for %v

What it means

computeDisseminationPlan could not compute a collection access policy filter for a private rwset collection: either its config was missing from the collection config package or AccessPolicy evaluation failed, so no dissemination plan for pvt data can be built and the distribution is aborted.

Source

Thrown at gossip/privdata/distributor.go:186

		for _, collection := range pvtRwset.CollectionPvtRwset {
			colCP, err := d.getCollectionConfig(configPackage, collection)
			collectionName := collection.CollectionName
			if err != nil {
				d.logger.Error("Could not find collection access policy for", namespace, " and collection", collectionName, "error", err)
				return nil, errors.WithMessage(err, fmt.Sprint("could not find collection access policy for", namespace, " and collection", collectionName, "error", err))
			}

			colAP, err := d.AccessPolicy(colCP, d.chainID)
			if err != nil {
				d.logger.Error("Could not obtain collection access policy, collection name", collectionName, "due to", err)
				return nil, errors.Wrap(err, fmt.Sprint("Could not obtain collection access policy, collection name", collectionName, "due to", err))
			}

			colFilter := colAP.AccessFilter()
			if colFilter == nil {
				d.logger.Error("Collection access policy for", collectionName, "has no filter")
				return nil, errors.Errorf("No collection access policy filter computed for %v", collectionName)
			}

			pvtDataMsg, err := d.createPrivateDataMessage(txID, namespace, collection, &peer.CollectionConfigPackage{Config: []*peer.CollectionConfig{colCP}}, blkHt)
			if err != nil {
				return nil, errors.WithStack(err)
			}

			d.logger.Debugf("Computing dissemination plan for collection [%s]", collectionName)
			dPlan, err := d.disseminationPlanForMsg(colAP, colFilter, pvtDataMsg)
			if err != nil {
				return nil, errors.WithMessagef(err, "could not build private data dissemination plan for chaincode %s and collection %s", namespace, collectionName)
			}
			disseminationPlan = append(disseminationPlan, dPlan...)
		}
	}
	return disseminationPlan, nil
}

View on GitHub (pinned to 2736b63f8f)

Solutions

1. Verify the collection access policy implementation returns a non-nil AccessFilter
2. Re-check the collection config type in the config package (static vs. unsupported variant)
3. Rebuild collection config so a valid static collection config is used

colAP, err := accessPolicy(colCP, chainID)
if err == nil && colAP.AccessFilter() == nil { /* treat as invalid policy */ }

func hasFilter(ap privdata.CollectionAccessPolicy) bool { return ap != nil && ap.AccessFilter() != nil }

When it happens

Trigger: colAP.AccessFilter() returns nil during computeDisseminationPlan — happens when the computed policy has no filter implementation (unexpected/unsupported policy type).

Common situations: Custom or malformed collection access policy implementation returning nil filter; internal policy construction succeeded but the concrete policy type does not support filtering.

Related errors

• Failed obtaining collection filter for channel %s, chaincode
• collection config package for %s chaincode is not provided
• Could not obtain collection access policy, collection name %
• required to disseminate to at least %d peers, but know of on
• Failed disseminating %d out of %d private dissemination plan

AI-assisted analysis of hyperledger/fabric@2736b63f8f (2026-09-04). Data as JSON: /api/errors/2e2928f2de9dc7cd. Report an issue: GitHub.