{"record":{"id":"04a5fa1e07bf9daf","repo":"hyperledger/fabric","slug":"errchannelremovalfailure","errorCode":"ErrChannelRemovalFailure","errorMessage":"channel removal failure","messagePattern":"channel removal failure","errorType":"error_code","errorClass":null,"httpStatus":null,"severity":"error","filePath":"orderer/common/types/errors.go","lineNumber":34,"sourceCode":"// ErrSystemChannelNotSupported is returned when trying to join with a system channel config block.\nvar ErrSystemChannelNotSupported = errors.New(\"system channel not supported\")\n\n// ErrChannelAlreadyExists is returned when trying to join a app channel that already exists (when the system channel does not\n// exist), or when trying to join the system channel when it already exists.\nvar ErrChannelAlreadyExists = errors.New(\"channel already exists\")\n\n// ErrAppChannelsAlreadyExists is returned when trying to join a system channel (that does not exist) when application channels\n// already exist.\nvar ErrAppChannelsAlreadyExists = errors.New(\"application channels already exist\")\n\n// ErrChannelNotExist is returned when trying to remove or list a channel that does not exist\nvar ErrChannelNotExist = errors.New(\"channel does not exist\")\n\n// ErrChannelPendingRemoval is returned when trying to remove or list a channel that is being removed.\nvar ErrChannelPendingRemoval = errors.New(\"channel pending removal\")\n\n// ErrChannelRemovalFailure is returned when a removal attempt failure has been recorded.\nvar ErrChannelRemovalFailure = errors.New(\"channel removal failure\")\n\n// ErrChannelNotReady is returned when trying to update a channel that is a follower\nvar ErrChannelNotReady = errors.New(\"channel is not ready, he is a follower\")\n","sourceCodeStart":16,"sourceCodeEnd":38,"githubUrl":"https://github.com/hyperledger/fabric/blob/2736b63f8fd5932511d56fe68b7039d15977f7f6/orderer/common/types/errors.go#L16-L38","documentation":"ErrChannelRemovalFailure is returned when a previous attempt to remove a channel failed and the failure has been recorded. The channel is stuck in a failed-removal state; join/update attempts map to HTTP 500 and removal reporting surfaces the recorded failure.","triggerScenarios":"Join/Update/FetchBlock on a channel whose recorded removal attempt failed (e.g. ledger cleanup error); a DELETE that previously returned an error and left the channel in removal-failure state.","commonSituations":"Filesystem/permission problems during ledger deletion; orderer crash mid-removal leaving a recorded failure; storage backend issues in the ledger provider.","solutions":["Check orderer logs for the underlying removal failure (filesystem permissions, disk space, ledger errors)","Retry 'osnadmin channel remove' to re-attempt removal once the underlying cause is fixed","If the ledger directory is corrupted, stop the orderer and repair/remove the channel's ledger data manually, then restart","Ensure the orderer process has write access to Ledger/Data directories before initiating removal"],"exampleFix":"// before\nosnadmin channel remove --channelID mychannel   # fails; state: removal failure\nosnadmin channel join --channelID mychannel ... # 500: channel removal failure\n// after\n# fix underlying cause (e.g. permissions) then retry removal\nchown -R fabric:fabric /var/hyperledger/production/orderer\nosnadmin channel remove --channelID mychannel\nosnadmin channel join --channelID mychannel --config-block app.block","handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"if errors.Is(err, types.ErrChannelRemovalFailure) {\n    // inspect orderer logs for the underlying ledger/filesystem failure,\n    // fix cause, then re-issue remove\n}","preventionTips":["Ensure the orderer has write access and disk space in ledger directories","Monitor orderer logs during channel removal","Fix the root cause before retrying join/update on a failed-removal channel"],"tags":["fabric","orderer","channel-participation","ledger","http-500","storage"],"backgroundTag":"channel-removal-failure","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"}