etcd-io__etcd/Documentation/errorcode.md

Error Code

This document describes the error code in Etcd project.

It's categorized into four groups:

• Command Related Error
• Post Form Related Error
• Raft Related Error
• Etcd Related Error

Error code corresponding strerror

const (
    EcodeKeyNotFound    = 100
    EcodeTestFailed     = 101
    EcodeNotFile        = 102
    EcodeNoMorePeer     = 103
    EcodeNotDir         = 104
    EcodeNodeExist      = 105
    EcodeKeyIsPreserved = 106
    EcodeRootROnly      = 107

    EcodeValueRequired     = 200
    EcodePrevValueRequired = 201
    EcodeTTLNaN            = 202
    EcodeIndexNaN          = 203

    EcodeRaftInternal = 300
    EcodeLeaderElect  = 301

    EcodeWatcherCleared = 400
    EcodeEventIndexCleared = 401
)

// command related errors
errors[100] = "Key Not Found"
errors[101] = "Test Failed" //test and set
errors[102] = "Not A File"
errors[103] = "Reached the max number of peers in the cluster"
errors[104] = "Not A Directory"
errors[105] = "Already exists" // create
errors[106] = "The prefix of given key is a keyword in etcd"
errors[107] = "Root is read only"

// Post form related errors
errors[200] = "Value is Required in POST form"
errors[201] = "PrevValue is Required in POST form"
errors[202] = "The given TTL in POST form is not a number"
errors[203] = "The given index in POST form is not a number"

// raft related errors
errors[300] = "Raft Internal Error"
errors[301] = "During Leader Election"

// etcd related errors
errors[400] = "watcher is cleared due to etcd recovery"
errors[401] = "The event in requested index is outdated and cleared"