{"record":{"id":"fc5eb7b0a0c02f1a","repo":"hyperledger/fabric","slug":"channel-s-failed-opening-transient-store","errorCode":null,"errorMessage":"[channel %s] failed opening transient store","messagePattern":"\\[channel (.+?)\\] failed opening transient store","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"core/peer/peer.go","lineNumber":342,"sourceCode":"\t\t\tchannel.Ledger(),\n\t\t\t&vir.ValidationInfoRetrieveShim{\n\t\t\t\tNew:    newLifecycleValidation,\n\t\t\t\tLegacy: legacyLifecycleValidation,\n\t\t\t},\n\t\t\t&CollectionInfoShim{\n\t\t\t\tCollectionAndLifecycleResources: newLifecycleValidation,\n\t\t\t\tChannelID:                       bundle.ConfigtxValidator().ChannelID(),\n\t\t\t},\n\t\t\tp.pluginMapper,\n\t\t\tpolicies.PolicyManagerGetterFunc(p.GetPolicyManager),\n\t\t\tp.CryptoProvider,\n\t\t),\n\t}\n\n\t// TODO: does someone need to call Close() on the transientStoreFactory at shutdown of the peer?\n\tstore, err := p.openStore(bundle.ConfigtxValidator().ChannelID())\n\tif err != nil {\n\t\treturn errors.Wrapf(err, \"[channel %s] failed opening transient store\", bundle.ConfigtxValidator().ChannelID())\n\t}\n\tchannel.store = store\n\n\tvar idDeserializerFactory privdata.IdentityDeserializerFactoryFunc = func(channelID string) msp.IdentityDeserializer {\n\t\treturn p.Channel(channelID).MSPManager()\n\t}\n\tsimpleCollectionStore := privdata.NewSimpleCollectionStore(l, deployedCCInfoProvider, idDeserializerFactory)\n\n\tp.GossipService.InitializeChannel(\n\t\tbundle.ConfigtxValidator().ChannelID(),\n\t\tp.OrdererEndpointOverrides,\n\t\tstore,\n\t\tgossipservice.Support{\n\t\t\tValidator:            validator,\n\t\t\tCommitter:            committer,\n\t\t\tCollectionStore:      simpleCollectionStore,\n\t\t\tIdDeserializeFactory: idDeserializerFactory,\n\t\t\tCapabilityProvider:   channel,","sourceCodeStart":324,"sourceCodeEnd":360,"githubUrl":"https://github.com/hyperledger/fabric/blob/2736b63f8fd5932511d56fe68b7039d15977f7f6/core/peer/peer.go#L324-L360","documentation":"createChannel opens the peer's transient private-data store for the new channel via p.openStore; if that fails the error is wrapped as 'failed opening transient store'. The transient store persists private data payloads for endorsement, and failure typically means the underlying storage (LevelDB) cannot be created or opened.","triggerScenarios":"openStore returns an error when creating/opening the channel's transient store directory — disk full, permission denied on peer file system path, corrupted existing LevelDB under transient store path, or invalid peer.fileSystemPath configuration.","commonSituations":"Peer container running with a read-only or unmounted volume, leftover corrupted transientstore DB after crash/disk-full, mismatched storage path between peer restarts, or file-permission changes after container image upgrade.","solutions":["Check disk space and write permissions on the peer's fileSystemPath (transient store directory)","Inspect the transient store LevelDB directory for corruption; move/remove it and restart the peer (private data may need re-collection)","Verify the peer's core.yaml storage configuration and that the volume is mounted read-write","Check peer logs for the wrapped root cause (errors.Wrapf) to identify the exact OS/LevelDB error"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":"storePath := filepath.Join(peerFileSystemPath, \"transientStore\", cid)\nif err := os.MkdirAll(storePath, 0o755); err != nil {\n    return fmt.Errorf(\"cannot create transient store dir %s: %w\", storePath, err)\n}\nif err := diskCheck(storePath); err != nil { return err }","typeGuard":null,"tryCatchPattern":"store, err := p.openStore(cid)\nif err != nil {\n    logger.Errorf(\"transient store open failed for %s: %v\", cid, err)\n    // inspect/repair the transient store directory, then re-attempt\n    return err\n}","preventionTips":["Mount peer data volumes read-write with adequate disk space and monitoring","Verify file permissions on /var/hyperledger/production after image upgrades","Monitor disk-full alerts; LevelDB corruption often follows ENOSPC","Back up ledgersData/transientStore before upgrades"],"tags":["hyperledger-fabric","transient-store","leveldb","storage"],"backgroundTag":"leveldb-open-failed","analyzedSha":"2736b63f8fd5932511d56fe68b7039d15977f7f6","analyzedAt":"2026-09-04T08:52:36.465Z","contentChangedAt":"2026-09-04T08:52:36.465Z","schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}