terror

package
v1.0.4 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Mar 13, 2020 License: Apache-2.0 Imports: 5 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	// Database operation related error
	ErrDBDriverError = New(codeDBDriverError, ClassDatabase, ScopeNotSet, LevelHigh, "database driver error")
	ErrDBBadConn     = New(codeDBBadConn, ClassDatabase, ScopeNotSet, LevelHigh, "database driver")
	ErrDBInvalidConn = New(codeDBInvalidConn, ClassDatabase, ScopeNotSet, LevelHigh, "database driver")

	ErrDBUnExpect      = New(codeDBUnExpect, ClassDatabase, ScopeNotSet, LevelHigh, "unexpect database error: %s")
	ErrDBQueryFailed   = New(codeDBQueryFailed, ClassDatabase, ScopeNotSet, LevelHigh, "query statement failed: %s")
	ErrDBExecuteFailed = New(codeDBExecuteFailed, ClassDatabase, ScopeNotSet, LevelHigh, "execute statement failed: %s")

	// Functional error
	ErrParseMydumperMeta      = New(codeParseMydumperMeta, ClassFunctional, ScopeInternal, LevelHigh, "parse mydumper metadata error: %s")
	ErrGetFileSize            = New(codeGetFileSize, ClassFunctional, ScopeInternal, LevelHigh, "get file %s size")
	ErrDropMultipleTables     = New(codeDropMultipleTables, ClassFunctional, ScopeInternal, LevelHigh, "not allowed operation: drop multiple tables in one statement")
	ErrRenameMultipleTables   = New(codeRenameMultipleTables, ClassFunctional, ScopeInternal, LevelHigh, "not allowed operation: rename multiple tables in one statement")
	ErrAlterMultipleTables    = New(codeAlterMultipleTables, ClassFunctional, ScopeInternal, LevelHigh, "not allowed operation: alter multiple tables in one statement")
	ErrParseSQL               = New(codeParseSQL, ClassFunctional, ScopeInternal, LevelHigh, "parse statement")
	ErrUnknownTypeDDL         = New(codeUnknownTypeDDL, ClassFunctional, ScopeInternal, LevelHigh, "unknown type ddl %+v")
	ErrRestoreASTNode         = New(codeRestoreASTNode, ClassFunctional, ScopeInternal, LevelHigh, "restore ast node")
	ErrParseGTID              = New(codeParseGTID, ClassFunctional, ScopeInternal, LevelHigh, "parse GTID %s")
	ErrNotSupportedFlavor     = New(codeNotSupportedFlavor, ClassFunctional, ScopeInternal, LevelHigh, "flavor %s not supported")
	ErrNotMySQLGTID           = New(codeNotMySQLGTID, ClassFunctional, ScopeInternal, LevelHigh, "%s is not mysql GTID set")
	ErrNotMariaDBGTID         = New(codeNotMariaDBGTID, ClassFunctional, ScopeInternal, LevelHigh, "%s is not mariadb GTID set")
	ErrNotUUIDString          = New(codeNotUUIDString, ClassFunctional, ScopeInternal, LevelHigh, "%v is not UUID string")
	ErrMariaDBDomainID        = New(codeMariaDBDomainID, ClassFunctional, ScopeInternal, LevelHigh, "%v is not uint32")
	ErrInvalidServerID        = New(codeInvalidServerID, ClassFunctional, ScopeInternal, LevelHigh, "invalid server id %s")
	ErrGetSQLModeFromStr      = New(codeGetSQLModeFromStr, ClassFunctional, ScopeInternal, LevelHigh, "get sql mode from string literal %s")
	ErrVerifySQLOperateArgs   = New(codeVerifySQLOperateArgs, ClassFunctional, ScopeInternal, LevelLow, "")
	ErrStatFileSize           = New(codeStatFileSize, ClassFunctional, ScopeInternal, LevelHigh, "get file statfs")
	ErrReaderAlreadyRunning   = New(codeReaderAlreadyRunning, ClassFunctional, ScopeInternal, LevelHigh, "binlog reader is already running")
	ErrReaderAlreadyStarted   = New(codeReaderAlreadyStarted, ClassFunctional, ScopeInternal, LevelHigh, "stage %s, expect %s, already started")
	ErrReaderStateCannotClose = New(codeReaderStateCannotClose, ClassFunctional, ScopeInternal, LevelHigh, "stage %s, expect %s, can not close")
	ErrReaderShouldStartSync  = New(codeReaderShouldStartSync, ClassFunctional, ScopeInternal, LevelHigh, "stage %s, expect %s, please start sync first")
	// pkg/streamer
	ErrEmptyRelayDir            = New(codeEmptyRelayDir, ClassFunctional, ScopeInternal, LevelHigh, "empty relay dir")
	ErrReadDir                  = New(codeReadDir, ClassFunctional, ScopeInternal, LevelHigh, "read dir: %s")
	ErrBaseFileNotFound         = New(codeBaseFileNotFound, ClassFunctional, ScopeInternal, LevelHigh, "base file %s in directory %s not found")
	ErrBinFileCmpCondNotSupport = New(codeBinFileCmpCondNotSupport, ClassFunctional, ScopeInternal, LevelHigh, "cmp condition %v not supported")
	ErrBinlogFileNotValid       = New(codeBinlogFileNotValid, ClassFunctional, ScopeInternal, LevelHigh, "binlog file %s not valid")
	ErrBinlogFilesNotFound      = New(codeBinlogFilesNotFound, ClassFunctional, ScopeInternal, LevelHigh, "binlog files in dir %s not found")
	ErrGetRelayLogStat          = New(codeGetRelayLogStat, ClassFunctional, ScopeInternal, LevelHigh, "get stat for relay log %s")
	ErrAddWatchForRelayLogDir   = New(codeAddWatchForRelayLogDir, ClassFunctional, ScopeInternal, LevelHigh, "add watch for relay log dir %s")
	ErrWatcherStart             = New(codeWatcherStart, ClassFunctional, ScopeInternal, LevelHigh, "watcher starts for relay log dir %s")
	ErrWatcherChanClosed        = New(codeWatcherChanClosed, ClassFunctional, ScopeInternal, LevelHigh, "watcher's %s chan for relay log dir %s closed")
	ErrWatcherChanRecvError     = New(codeWatcherChanRecvError, ClassFunctional, ScopeInternal, LevelHigh, "watcher receives error, relay log dir %s")
	ErrRelayLogFileSizeSmaller  = New(codeRelayLogFileSizeSmaller, ClassFunctional, ScopeInternal, LevelHigh, "file size of relay log %s become smaller, please check the status of relay log and re-pull it. If you want to re-pull it, you should open relay.meta, set the binlog-name to the error pos name, set binlog-pos to 4, delete the stashed relay log and run `resume-relay` in dmctl")
	ErrBinlogFileNotSpecified   = New(codeBinlogFileNotSpecified, ClassFunctional, ScopeInternal, LevelHigh, "binlog file must be specified")
	ErrNoRelayLogMatchPos       = New(codeNoRelayLogMatchPos, ClassFunctional, ScopeInternal, LevelHigh, "no relay log files in dir %s match pos %s")
	ErrFirstRelayLogNotMatchPos = New(codeFirstRelayLogNotMatchPos, ClassFunctional, ScopeInternal, LevelHigh, "the first relay log %s not match the start pos %v")
	ErrParserParseRelayLog      = New(codeParserParseRelayLog, ClassFunctional, ScopeInternal, LevelHigh, "parse relay log file %s")
	ErrNoSubdirToSwitch         = New(codeNoSubdirToSwitch, ClassFunctional, ScopeInternal, LevelHigh, "parse for previous sub relay directory finished, but no next sub directory need to switch not supported")
	ErrNeedSyncAgain            = New(codeNeedSyncAgain, ClassFunctional, ScopeInternal, LevelHigh, "Last sync error or closed, try sync and get event again")
	ErrSyncClosed               = New(codeSyncClosed, ClassFunctional, ScopeInternal, LevelHigh, "Sync was closed")
	// pkg/utils
	ErrSchemaTableNameNotValid   = New(codeSchemaTableNameNotValid, ClassFunctional, ScopeInternal, LevelHigh, "table name %s not valid")
	ErrGenTableRouter            = New(codeGenTableRouter, ClassFunctional, ScopeInternal, LevelHigh, "generate table router")
	ErrEncryptSecretKeyNotValid  = New(codeEncryptSecretKeyNotValid, ClassFunctional, ScopeInternal, LevelHigh, "key size should be 16, 24 or 32, but input key's size is %d")
	ErrEncryptNewCipher          = New(codeEncryptNewCipher, ClassFunctional, ScopeInternal, LevelHigh, "new cipher")
	ErrEncryptGenIV              = New(codeEncryptGenIV, ClassFunctional, ScopeInternal, LevelHigh, "generate iv")
	ErrCiphertextLenNotValid     = New(codeCiphertextLenNotValid, ClassFunctional, ScopeInternal, LevelHigh, "ciphertext's length should be greater than %d, but got %d not valid")
	ErrCiphertextContextNotValid = New(codeCiphertextContextNotValid, ClassFunctional, ScopeInternal, LevelHigh, "ciphertext's content not valid")
	ErrInvalidBinlogPosStr       = New(codeInvalidBinlogPosStr, ClassFunctional, ScopeInternal, LevelHigh, "invalid mysql position string: %s")
	ErrEncCipherTextBase64Decode = New(codeEncCipherTextBase64Decode, ClassFunctional, ScopeInternal, LevelHigh, "decode base64 encoded password %s")
	// pkg/binlog
	ErrBinlogWriteBinaryData         = New(codeBinlogWriteBinaryData, ClassFunctional, ScopeInternal, LevelHigh, "")
	ErrBinlogWriteDataToBuffer       = New(codeBinlogWriteDataToBuffer, ClassFunctional, ScopeInternal, LevelHigh, "")
	ErrBinlogHeaderLengthNotValid    = New(codeBinlogHeaderLengthNotValid, ClassFunctional, ScopeInternal, LevelHigh, "header length should be %d, but got %d not valid")
	ErrBinlogEventDecode             = New(codeBinlogEventDecode, ClassFunctional, ScopeInternal, LevelHigh, "decode % X")
	ErrBinlogEmptyNextBinName        = New(codeBinlogEmptyNextBinName, ClassFunctional, ScopeInternal, LevelHigh, "empty next binlog name not valid")
	ErrBinlogParseSID                = New(codeBinlogParseSID, ClassFunctional, ScopeInternal, LevelHigh, "")
	ErrBinlogEmptyGTID               = New(codeBinlogEmptyGTID, ClassFunctional, ScopeInternal, LevelHigh, "empty GTID set not valid")
	ErrBinlogGTIDSetNotValid         = New(codeBinlogGTIDSetNotValid, ClassFunctional, ScopeInternal, LevelHigh, "GTID set %s with flavor %s not valid")
	ErrBinlogGTIDMySQLNotValid       = New(codeBinlogGTIDMySQLNotValid, ClassFunctional, ScopeInternal, LevelHigh, "GTID set string %s for MySQL not valid")
	ErrBinlogGTIDMariaDBNotValid     = New(codeBinlogGTIDMariaDBNotValid, ClassFunctional, ScopeInternal, LevelHigh, "GTID set string %s for MariaDB not valid")
	ErrBinlogMariaDBServerIDMismatch = New(codeBinlogMariaDBServerIDMismatch, ClassFunctional, ScopeInternal, LevelHigh, "server_id mismatch, in GTID (%d), in event header/server_id (%d)")
	ErrBinlogOnlyOneGTIDSupport      = New(codeBinlogOnlyOneGTIDSupport, ClassFunctional, ScopeInternal, LevelHigh, "only one GTID in set is supported, but got %d (%s)")
	ErrBinlogOnlyOneIntervalInUUID   = New(codeBinlogOnlyOneIntervalInUUID, ClassFunctional, ScopeInternal, LevelHigh, "only one Interval in UUIDSet is supported, but got %d (%s)")
	ErrBinlogIntervalValueNotValid   = New(codeBinlogIntervalValueNotValid, ClassFunctional, ScopeInternal, LevelHigh, "Interval's Stop should equal to Start+1, but got %+v (%s)")
	ErrBinlogEmptyQuery              = New(codeBinlogEmptyQuery, ClassFunctional, ScopeInternal, LevelHigh, "empty query not valid")
	ErrBinlogTableMapEvNotValid      = New(codeBinlogTableMapEvNotValid, ClassFunctional, ScopeInternal, LevelHigh, "empty schema (% X) or table (% X) or column type (% X)")
	ErrBinlogExpectFormatDescEv      = New(codeBinlogExpectFormatDescEv, ClassFunctional, ScopeInternal, LevelHigh, "expect FormatDescriptionEvent, but got %+v")
	ErrBinlogExpectTableMapEv        = New(codeBinlogExpectTableMapEv, ClassFunctional, ScopeInternal, LevelHigh, "expect TableMapEvent, but got %+v")
	ErrBinlogExpectRowsEv            = New(codeBinlogExpectRowsEv, ClassFunctional, ScopeInternal, LevelHigh, "expect event with type (%d), but got %+v")
	ErrBinlogUnexpectedEv            = New(codeBinlogUnexpectedEv, ClassFunctional, ScopeInternal, LevelHigh, "unexpected event %+v")
	ErrBinlogParseSingleEv           = New(codeBinlogParseSingleEv, ClassFunctional, ScopeInternal, LevelHigh, "")
	ErrBinlogEventTypeNotValid       = New(codeBinlogEventTypeNotValid, ClassFunctional, ScopeInternal, LevelHigh, "event type %d not valid")
	ErrBinlogEventNoRows             = New(codeBinlogEventNoRows, ClassFunctional, ScopeInternal, LevelHigh, "no rows not valid")
	ErrBinlogEventNoColumns          = New(codeBinlogEventNoColumns, ClassFunctional, ScopeInternal, LevelHigh, "no columns not valid")
	ErrBinlogEventRowLengthNotEq     = New(codeBinlogEventRowLengthNotEq, ClassFunctional, ScopeInternal, LevelHigh, "length of row (%d) not equal to length of column-type (%d)")
	ErrBinlogColumnTypeNotSupport    = New(codeBinlogColumnTypeNotSupport, ClassFunctional, ScopeInternal, LevelHigh, "column type %d in binlog not supported")
	ErrBinlogGoMySQLTypeNotSupport   = New(codeBinlogGoMySQLTypeNotSupport, ClassFunctional, ScopeInternal, LevelHigh, "go-mysql type %d in event generator not supported")
	ErrBinlogColumnTypeMisMatch      = New(codeBinlogColumnTypeMisMatch, ClassFunctional, ScopeInternal, LevelHigh, "value %+v (type %v) with column type %v not valid")
	ErrBinlogDummyEvSizeTooSmall     = New(codeBinlogDummyEvSizeTooSmall, ClassFunctional, ScopeInternal, LevelHigh, "required dummy event size (%d) is too small, the minimum supported size is %d")
	ErrBinlogFlavorNotSupport        = New(codeBinlogFlavorNotSupport, ClassFunctional, ScopeInternal, LevelHigh, "flavor %s not supported")
	ErrBinlogDMLEmptyData            = New(codeBinlogDMLEmptyData, ClassFunctional, ScopeInternal, LevelHigh, "empty data not valid")
	ErrBinlogLatestGTIDNotInPrev     = New(codeBinlogLatestGTIDNotInPrev, ClassFunctional, ScopeInternal, LevelHigh, "latest GTID %s is not one of the latest previousGTIDs %s not valid")
	ErrBinlogReadFileByGTID          = New(codeBinlogReadFileByGTID, ClassFunctional, ScopeInternal, LevelHigh, "read from file by GTID not supported")
	ErrBinlogWriterNotStateNew       = New(codeBinlogWriterNotStateNew, ClassFunctional, ScopeInternal, LevelHigh, "stage %s, expect %s, already started")
	ErrBinlogWriterStateCannotClose  = New(codeBinlogWriterStateCannotClose, ClassFunctional, ScopeInternal, LevelHigh, "stage %s, expect %s, can not close")
	ErrBinlogWriterNeedStart         = New(codeBinlogWriterNeedStart, ClassFunctional, ScopeInternal, LevelHigh, "stage %s, expect %s, please start the writer first")
	ErrBinlogWriterOpenFile          = New(codeBinlogWriterOpenFile, ClassFunctional, ScopeInternal, LevelHigh, "open file")
	ErrBinlogWriterGetFileStat       = New(codeBinlogWriterGetFileStat, ClassFunctional, ScopeInternal, LevelHigh, "get stat for %s")
	ErrBinlogWriterWriteDataLen      = New(codeBinlogWriterWriteDataLen, ClassFunctional, ScopeInternal, LevelHigh, "data length %d")
	ErrBinlogWriterFileNotOpened     = New(codeBinlogWriterFileNotOpened, ClassFunctional, ScopeInternal, LevelHigh, "file %s not opened")
	ErrBinlogWriterFileSync          = New(codeBinlogWriterFileSync, ClassFunctional, ScopeInternal, LevelHigh, "sync file")
	ErrBinlogPrevGTIDEvNotValid      = New(codeBinlogPrevGTIDEvNotValid, ClassFunctional, ScopeInternal, LevelHigh, "the event should be a PreviousGTIDsEvent in go-mysql, but got %T")
	ErrBinlogDecodeMySQLGTIDSet      = New(codeBinlogDecodeMySQLGTIDSet, ClassFunctional, ScopeInternal, LevelHigh, "decode from % X")
	ErrBinlogNeedMariaDBGTIDSet      = New(codeBinlogNeedMariaDBGTIDSet, ClassFunctional, ScopeInternal, LevelHigh, "the event should be a MariadbGTIDListEvent, but got %T")
	ErrBinlogParseMariaDBGTIDSet     = New(codeBinlogParseMariaDBGTIDSet, ClassFunctional, ScopeInternal, LevelHigh, "parse MariaDB GTID set")
	ErrBinlogMariaDBAddGTIDSet       = New(codeBinlogMariaDBAddGTIDSet, ClassFunctional, ScopeInternal, LevelHigh, "add set %v to GTID set")
	// pkg/tracing
	ErrTracingEventDataNotValid = New(codeTracingEventDataNotValid, ClassFunctional, ScopeInternal, LevelHigh, "invalid event data for type: %s")
	ErrTracingUploadData        = New(codeTracingUploadData, ClassFunctional, ScopeInternal, LevelHigh, "upload event")
	ErrTracingEventTypeNotValid = New(codeTracingEventTypeNotValid, ClassFunctional, ScopeInternal, LevelHigh, "invalid event type %s, will not process")
	ErrTracingGetTraceCode      = New(codeTracingGetTraceCode, ClassFunctional, ScopeInternal, LevelHigh, "failed to get code information from runtime.Caller")
	ErrTracingDataChecksum      = New(codeTracingDataChecksum, ClassFunctional, ScopeInternal, LevelHigh, "calc data checksum")
	ErrTracingGetTSO            = New(codeTracingGetTSO, ClassFunctional, ScopeInternal, LevelHigh, "get tso")
	// pkg/backoff
	ErrBackoffArgsNotValid = New(codeBackoffArgsNotValid, ClassFunctional, ScopeInternal, LevelMedium, "backoff argument %s value %v not valid")
	// pkg
	ErrInitLoggerFail = New(codeInitLoggerFail, ClassFunctional, ScopeInternal, LevelMedium, "init logger failed")
	// pkg/gtid
	ErrGTIDTruncateInvalid = New(codeGTIDTruncateInvalid, ClassFunctional, ScopeInternal, LevelHigh, "truncate GTID sets %v to %v not valid")
	// pkg/streamer
	ErrRelayLogGivenPosTooBig = New(codeRelayLogGivenPosTooBig, ClassFunctional, ScopeInternal, LevelHigh, "the given relay log pos %s of meta config is too big, please check it again")

	// Config related error
	ErrConfigCheckItemNotSupport    = New(codeConfigCheckItemNotSupport, ClassConfig, ScopeInternal, LevelMedium, "checking item %s is not supported\n%s")
	ErrConfigTomlTransform          = New(codeConfigTomlTransform, ClassConfig, ScopeInternal, LevelMedium, "%s")
	ErrConfigTaskYamlTransform      = New(codeConfigTaskYamlTransform, ClassConfig, ScopeInternal, LevelMedium, "%s")
	ErrConfigTaskNameEmpty          = New(codeConfigTaskNameEmpty, ClassConfig, ScopeInternal, LevelMedium, "task name should not be empty")
	ErrConfigEmptySourceID          = New(codeConfigEmptySourceID, ClassConfig, ScopeInternal, LevelMedium, "empty source-id not valid")
	ErrConfigTooLongSourceID        = New(codeConfigTooLongSourceID, ClassConfig, ScopeInternal, LevelMedium, "too long source-id not valid")
	ErrConfigOnlineSchemeNotSupport = New(codeConfigOnlineSchemeNotSupport, ClassConfig, ScopeInternal, LevelMedium, "online scheme %s not supported")
	ErrConfigInvalidTimezone        = New(codeConfigInvalidTimezone, ClassConfig, ScopeInternal, LevelMedium, "invalid timezone string: %s")
	ErrConfigParseFlagSet           = New(codeConfigParseFlagSet, ClassConfig, ScopeInternal, LevelMedium, "parse subtask config flag set")
	ErrConfigDecryptDBPassword      = New(codeConfigDecryptDBPassword, ClassConfig, ScopeInternal, LevelMedium, "decrypt DB password %s failed")
	ErrConfigMetaNoBinlogName       = New(codeConfigMetaNoBinlogName, ClassConfig, ScopeInternal, LevelMedium, "binlog-name must specify")
	ErrConfigMySQLInstNotFound      = New(codeConfigMySQLInstNotFound, ClassConfig, ScopeInternal, LevelMedium, "mysql instance config must specify")
	ErrConfigMySQLInstsAtLeastOne   = New(codeConfigMySQLInstsAtLeastOne, ClassConfig, ScopeInternal, LevelMedium, "must specify at least one mysql-instances")
	ErrConfigMySQLInstSameSourceID  = New(codeConfigMySQLInstSameSourceID, ClassConfig, ScopeInternal, LevelMedium, "mysql-instance (%d) and (%d) have same source-id (%s)")
	ErrConfigMydumperCfgConflict    = New(codeConfigMydumperCfgConflict, ClassConfig, ScopeInternal, LevelMedium, "mydumper-config-name and mydumper should only specify one")
	ErrConfigLoaderCfgConflict      = New(codeConfigLoaderCfgConflict, ClassConfig, ScopeInternal, LevelMedium, "loader-config-name and loader should only specify one")
	ErrConfigSyncerCfgConflict      = New(codeConfigSyncerCfgConflict, ClassConfig, ScopeInternal, LevelMedium, "syncer-config-name and syncer should only specify one")
	ErrConfigReadTaskCfgFromFile    = New(codeConfigReadTaskCfgFromFile, ClassConfig, ScopeInternal, LevelMedium, "read config file %v")
	ErrConfigNeedUniqueTaskName     = New(codeConfigNeedUniqueTaskName, ClassConfig, ScopeInternal, LevelMedium, "must specify a unique task name")
	ErrConfigInvalidTaskMode        = New(codeConfigInvalidTaskMode, ClassConfig, ScopeInternal, LevelMedium, "please specify right task-mode, support `full`, `incremental`, `all`")
	ErrConfigNeedTargetDB           = New(codeConfigNeedTargetDB, ClassConfig, ScopeInternal, LevelMedium, "must specify target-database")
	ErrConfigMetadataNotSet         = New(codeConfigMetadataNotSet, ClassConfig, ScopeInternal, LevelMedium, "mysql-instance(%d) must set meta for task-mode %s")
	ErrConfigRouteRuleNotFound      = New(codeConfigRouteRuleNotFound, ClassConfig, ScopeInternal, LevelMedium, "mysql-instance(%d)'s route-rules %s not exist in routes")
	ErrConfigFilterRuleNotFound     = New(codeConfigFilterRuleNotFound, ClassConfig, ScopeInternal, LevelMedium, "mysql-instance(%d)'s filter-rules %s not exist in filters")
	ErrConfigColumnMappingNotFound  = New(codeConfigColumnMappingNotFound, ClassConfig, ScopeInternal, LevelMedium, "mysql-instance(%d)'s column-mapping-rules %s not exist in column-mapping")
	ErrConfigBWListNotFound         = New(codeConfigBWListNotFound, ClassConfig, ScopeInternal, LevelMedium, "mysql-instance(%d)'s list %s not exist in black white list")
	ErrConfigMydumperCfgNotFound    = New(codeConfigMydumperCfgNotFound, ClassConfig, ScopeInternal, LevelMedium, "mysql-instance(%d)'s mydumper config %s not exist in mydumpers")
	ErrConfigMydumperPathNotValid   = New(codeConfigMydumperPathNotValid, ClassConfig, ScopeInternal, LevelMedium, "mysql-instance(%d)'s mydumper-path must specify a valid path to mydumper binary when task-mode is all or full")
	ErrConfigLoaderCfgNotFound      = New(codeConfigLoaderCfgNotFound, ClassConfig, ScopeInternal, LevelMedium, "mysql-instance(%d)'s loader config %s not exist in loaders")
	ErrConfigSyncerCfgNotFound      = New(codeConfigSyncerCfgNotFound, ClassConfig, ScopeInternal, LevelMedium, "mysql-instance(%d)'s syncer config %s not exist in syncer")
	ErrConfigSourceIDNotFound       = New(codeConfigSourceIDNotFound, ClassConfig, ScopeInternal, LevelMedium, "source %s in deployment configuration not found")
	ErrConfigDuplicateCfgItem       = New(codeConfigDuplicateCfgItem, ClassConfig, ScopeInternal, LevelMedium, "the following mysql configs have duplicate items, please remove the duplicates:\n%s")

	// Binlog operation error
	ErrBinlogExtractPosition = New(codeBinlogExtractPosition, ClassBinlogOp, ScopeInternal, LevelHigh, "")
	ErrBinlogInvalidFilename = New(codeBinlogInvalidFilename, ClassBinlogOp, ScopeInternal, LevelHigh, "invalid binlog filename")
	ErrBinlogParsePosFromStr = New(codeBinlogParsePosFromStr, ClassBinlogOp, ScopeInternal, LevelHigh, "")

	// Checkpoint error
	ErrCheckpointInvalidTaskMode     = New(codeCheckpointInvalidTaskMode, ClassCheckpoint, ScopeInternal, LevelMedium, "invalid task mode: %s")
	ErrCheckpointSaveInvalidPos      = New(codeCheckpointSaveInvalidPos, ClassCheckpoint, ScopeInternal, LevelHigh, "save point %v is older than current pos %v")
	ErrCheckpointInvalidTableFile    = New(codeCheckpointInvalidTableFile, ClassCheckpoint, ScopeInternal, LevelMedium, "invalid db table sql file - %s")
	ErrCheckpointDBNotExistInFile    = New(codeCheckpointDBNotExistInFile, ClassCheckpoint, ScopeInternal, LevelMedium, "db (%s) not exist in data files, but in checkpoint")
	ErrCheckpointTableNotExistInFile = New(codeCheckpointTableNotExistInFile, ClassCheckpoint, ScopeInternal, LevelMedium, "table (%s) not exist in db (%s) data files, but in checkpoint")
	ErrCheckpointRestoreCountGreater = New(codeCheckpointRestoreCountGreater, ClassCheckpoint, ScopeInternal, LevelMedium, "restoring count greater than total count for table[%v]")

	// Task check error
	ErrTaskCheckSameTableName    = New(codeTaskCheckSameTableName, ClassTaskCheck, ScopeInternal, LevelMedium, "same table name in case-sensitive %v")
	ErrTaskCheckFailedOpenDB     = New(codeTaskCheckFailedOpenDB, ClassTaskCheck, ScopeInternal, LevelHigh, "failed to open DSN %s:***@%s:%d")
	ErrTaskCheckNewTableRouter   = New(codeTaskCheckNewTableRouter, ClassTaskCheck, ScopeInternal, LevelMedium, "new table router error")
	ErrTaskCheckNewColumnMapping = New(codeTaskCheckNewColumnMapping, ClassTaskCheck, ScopeInternal, LevelMedium, "new column mapping error")
	ErrTaskCheckSyncConfigError  = New(codeTaskCheckSyncConfigError, ClassTaskCheck, ScopeInternal, LevelMedium, "%s %v: %v\n detail: %v")
	ErrTaskCheckNewBWList        = New(codeTaskCheckNewBWList, ClassTaskCheck, ScopeInternal, LevelMedium, "new black white list error")

	// Relay log basic API error
	ErrRelayParseUUIDIndex         = New(codeRelayParseUUIDIndex, ClassRelayEventLib, ScopeInternal, LevelHigh, "parse server-uuid.index")
	ErrRelayParseUUIDSuffix        = New(codeRelayParseUUIDSuffix, ClassRelayEventLib, ScopeInternal, LevelHigh, "UUID (with suffix) %s not valid")
	ErrRelayUUIDWithSuffixNotFound = New(codeRelayUUIDWithSuffixNotFound, ClassRelayEventLib, ScopeInternal, LevelHigh, "no UUID (with suffix) matched %s found in %s, all UUIDs are %v")
	ErrRelayGenFakeRotateEvent     = New(codeRelayGenFakeRotateEvent, ClassRelayEventLib, ScopeInternal, LevelHigh, "generate fake rotate event")
	ErrRelayNoValidRelaySubDir     = New(codeRelayNoValidRelaySubDir, ClassRelayEventLib, ScopeInternal, LevelHigh, "no valid relay sub directory exists")

	// Relay unit error
	ErrRelayUUIDSuffixNotValid           = New(codeRelayUUIDSuffixNotValid, ClassRelayUnit, ScopeInternal, LevelHigh, "UUID %s suffix %d should be 1 larger than previous suffix %d")
	ErrRelayUUIDSuffixLessThanPrev       = New(codeRelayUUIDSuffixLessThanPrev, ClassRelayUnit, ScopeInternal, LevelHigh, "previous UUID %s has suffix larger than %s")
	ErrRelayLoadMetaData                 = New(codeRelayLoadMetaData, ClassRelayUnit, ScopeInternal, LevelHigh, "load meta data")
	ErrRelayBinlogNameNotValid           = New(codeRelayBinlogNameNotValid, ClassRelayUnit, ScopeInternal, LevelHigh, "relay-binlog-name %s not valid")
	ErrRelayNoCurrentUUID                = New(codeRelayNoCurrentUUID, ClassRelayUnit, ScopeInternal, LevelHigh, "no current UUID set")
	ErrRelayFlushLocalMeta               = New(codeRelayFlushLocalMeta, ClassRelayUnit, ScopeInternal, LevelHigh, "flush local meta")
	ErrRelayUpdateIndexFile              = New(codeRelayUpdateIndexFile, ClassRelayUnit, ScopeInternal, LevelHigh, "update UUID index file %s")
	ErrRelayLogDirpathEmpty              = New(codeRelayLogDirpathEmpty, ClassRelayUnit, ScopeInternal, LevelHigh, "dirpath is empty")
	ErrRelayReaderNotStateNew            = New(codeRelayReaderNotStateNew, ClassRelayUnit, ScopeInternal, LevelHigh, "stage %s, expect %s, already started")
	ErrRelayReaderStateCannotClose       = New(codeRelayReaderStateCannotClose, ClassRelayUnit, ScopeInternal, LevelHigh, "stage %s, expect %s, can not close")
	ErrRelayReaderNeedStart              = New(codeRelayReaderNeedStart, ClassRelayUnit, ScopeInternal, LevelHigh, "stage %s, expect %s, please start the reader first")
	ErrRelayTCPReaderStartSync           = New(codeRelayTCPReaderStartSync, ClassRelayUnit, ScopeUpstream, LevelHigh, "start sync from position %s")
	ErrRelayTCPReaderNilGTID             = New(codeRelayTCPReaderNilGTID, ClassRelayUnit, ScopeInternal, LevelHigh, "nil GTID set not valid")
	ErrRelayTCPReaderStartSyncGTID       = New(codeRelayTCPReaderStartSyncGTID, ClassRelayUnit, ScopeUpstream, LevelHigh, "start sync from GTID set %s")
	ErrRelayTCPReaderGetEvent            = New(codeRelayTCPReaderGetEvent, ClassRelayUnit, ScopeUpstream, LevelHigh, "TCPReader get relay event with error")
	ErrRelayWriterNotStateNew            = New(codeRelayWriterNotStateNew, ClassRelayUnit, ScopeInternal, LevelHigh, "stage %s, expect %s, already started")
	ErrRelayWriterStateCannotClose       = New(codeRelayWriterStateCannotClose, ClassRelayUnit, ScopeInternal, LevelHigh, "stage %s, expect %s, can not close")
	ErrRelayWriterNeedStart              = New(codeRelayWriterNeedStart, ClassRelayUnit, ScopeInternal, LevelHigh, "stage %s, expect %s, please start the writer first")
	ErrRelayWriterNotOpened              = New(codeRelayWriterNotOpened, ClassRelayUnit, ScopeInternal, LevelHigh, "no underlying writer opened")
	ErrRelayWriterExpectRotateEv         = New(codeRelayWriterExpectRotateEv, ClassRelayUnit, ScopeInternal, LevelHigh, "except RotateEvent, but got %+v")
	ErrRelayWriterRotateEvWithNoWriter   = New(codeRelayWriterRotateEvWithNoWriter, ClassRelayUnit, ScopeInternal, LevelHigh, "non-fake RotateEvent %+v received, but no binlog file opened")
	ErrRelayWriterStatusNotValid         = New(codeRelayWriterStatusNotValid, ClassRelayUnit, ScopeInternal, LevelHigh, "invalid status type %T of the underlying writer")
	ErrRelayWriterGetFileStat            = New(codeRelayWriterGetFileStat, ClassRelayUnit, ScopeInternal, LevelHigh, "get stat for %s")
	ErrRelayWriterLatestPosGTFileSize    = New(codeRelayWriterLatestPosGTFileSize, ClassRelayUnit, ScopeInternal, LevelHigh, "latest pos %d greater than file size %d, should not happen")
	ErrRelayWriterFileOperate            = New(codeRelayWriterFileOperate, ClassRelayUnit, ScopeInternal, LevelHigh, "")
	ErrRelayCheckBinlogFileHeaderExist   = New(codeRelayCheckBinlogFileHeaderExist, ClassRelayUnit, ScopeInternal, LevelHigh, "")
	ErrRelayCheckFormatDescEventExist    = New(codeRelayCheckFormatDescEventExist, ClassRelayUnit, ScopeInternal, LevelHigh, "")
	ErrRelayCheckFormatDescEventParseEv  = New(codeRelayCheckFormatDescEventParseEv, ClassRelayUnit, ScopeInternal, LevelHigh, "parse %s")
	ErrRelayCheckIsDuplicateEvent        = New(codeRelayCheckIsDuplicateEvent, ClassRelayUnit, ScopeInternal, LevelHigh, "")
	ErrRelayUpdateGTID                   = New(codeRelayUpdateGTID, ClassRelayUnit, ScopeInternal, LevelHigh, "update GTID set %v with GTID %s")
	ErrRelayNeedPrevGTIDEvBeforeGTIDEv   = New(codeRelayNeedPrevGTIDEvBeforeGTIDEv, ClassRelayUnit, ScopeInternal, LevelHigh, "should have a PreviousGTIDsEvent before the GTIDEvent %+v")
	ErrRelayNeedMaGTIDListEvBeforeGTIDEv = New(codeRelayNeedMaGTIDListEvBeforeGTIDEv, ClassRelayUnit, ScopeInternal, LevelHigh, "should have a MariadbGTIDListEvent before the MariadbGTIDEvent %+v")
	ErrRelayMkdir                        = New(codeRelayMkdir, ClassRelayUnit, ScopeInternal, LevelHigh, "relay mkdir")
	ErrRelaySwitchMasterNeedGTID         = New(codeRelaySwitchMasterNeedGTID, ClassRelayUnit, ScopeInternal, LevelHigh, "can only switch relay's master server when GTID enabled")
	ErrRelayThisStrategyIsPurging        = New(codeRelayThisStrategyIsPurging, ClassRelayUnit, ScopeInternal, LevelHigh, "this strategy is purging")
	ErrRelayOtherStrategyIsPurging       = New(codeRelayOtherStrategyIsPurging, ClassRelayUnit, ScopeInternal, LevelHigh, "%s is purging")
	ErrRelayPurgeIsForbidden             = New(codeRelayPurgeIsForbidden, ClassRelayUnit, ScopeInternal, LevelHigh, "relay log purge is forbidden temporarily, because %s, please try again later")
	ErrRelayNoActiveRelayLog             = New(codeRelayNoActiveRelayLog, ClassRelayUnit, ScopeInternal, LevelHigh, "no active relay log file found")
	ErrRelayPurgeRequestNotValid         = New(codeRelayPurgeRequestNotValid, ClassRelayUnit, ScopeInternal, LevelHigh, "request %+v not valid")
	ErrRelayTrimUUIDNotFound             = New(codeRelayTrimUUIDNotFound, ClassRelayUnit, ScopeInternal, LevelHigh, "UUID %s in UUIDs %v not found")
	ErrRelayRemoveFileFail               = New(codeRelayRemoveFileFail, ClassRelayUnit, ScopeInternal, LevelHigh, "remove relay log %s %s")
	ErrRelayPurgeArgsNotValid            = New(codeRelayPurgeArgsNotValid, ClassRelayUnit, ScopeInternal, LevelHigh, "args (%T) %+v not valid")
	ErrPreviousGTIDsNotValid             = New(codePreviousGTIDsNotValid, ClassRelayUnit, ScopeInternal, LevelHigh, "previousGTIDs %s not valid")

	// Dump unit error
	ErrDumpUnitRuntime        = New(codeDumpUnitRuntime, ClassDumpUnit, ScopeInternal, LevelHigh, "mydumper runs with error")
	ErrDumpUnitGenTableRouter = New(codeDumpUnitGenTableRouter, ClassDumpUnit, ScopeInternal, LevelHigh, "generate table router")
	ErrDumpUnitGenBWList      = New(codeDumpUnitGenBWList, ClassDumpUnit, ScopeInternal, LevelHigh, "generate black white list")

	// Load unit error
	ErrLoadUnitCreateSchemaFile    = New(codeLoadUnitCreateSchemaFile, ClassLoadUnit, ScopeInternal, LevelMedium, "generate schema file")
	ErrLoadUnitInvalidFileEnding   = New(codeLoadUnitInvalidFileEnding, ClassLoadUnit, ScopeInternal, LevelHigh, "corresponding ending of sql: ')' not found")
	ErrLoadUnitParseQuoteValues    = New(codeLoadUnitParseQuoteValues, ClassLoadUnit, ScopeInternal, LevelHigh, "parse quote values error")
	ErrLoadUnitDoColumnMapping     = New(codeLoadUnitDoColumnMapping, ClassLoadUnit, ScopeInternal, LevelHigh, "mapping row data %v for table %+v")
	ErrLoadUnitReadSchemaFile      = New(codeLoadUnitReadSchemaFile, ClassLoadUnit, ScopeInternal, LevelHigh, "read schema from sql file %s")
	ErrLoadUnitParseStatement      = New(codeLoadUnitParseStatement, ClassLoadUnit, ScopeInternal, LevelHigh, "parse statement %s")
	ErrLoadUnitNotCreateTable      = New(codeLoadUnitNotCreateTable, ClassLoadUnit, ScopeInternal, LevelHigh, "statement %s for %s/%s is not create table statement")
	ErrLoadUnitDispatchSQLFromFile = New(codeLoadUnitDispatchSQLFromFile, ClassLoadUnit, ScopeInternal, LevelHigh, "dispatch sql")
	ErrLoadUnitInvalidInsertSQL    = New(codeLoadUnitInvalidInsertSQL, ClassLoadUnit, ScopeInternal, LevelHigh, "invalid insert sql %s")
	ErrLoadUnitGenTableRouter      = New(codeLoadUnitGenTableRouter, ClassLoadUnit, ScopeInternal, LevelHigh, "generate table router")
	ErrLoadUnitNewColumnMapping    = New(codeLoadUnitNewColumnMapping, ClassLoadUnit, ScopeInternal, LevelHigh, "new column mapping")
	ErrLoadUnitNoDBFile            = New(codeLoadUnitNoDBFile, ClassLoadUnit, ScopeInternal, LevelHigh, "invalid data sql file, cannot find db - %s")
	ErrLoadUnitNoTableFile         = New(codeLoadUnitNoTableFile, ClassLoadUnit, ScopeInternal, LevelHigh, "invalid data sql file, cannot find table - %s")
	ErrLoadUnitDumpDirNotFound     = New(codeLoadUnitDumpDirNotFound, ClassLoadUnit, ScopeInternal, LevelHigh, "%s does not exist or it's not a dir")
	ErrLoadUnitDuplicateTableFile  = New(codeLoadUnitDuplicateTableFile, ClassLoadUnit, ScopeInternal, LevelHigh, "invalid table schema file, duplicated item - %s")
	ErrLoadUnitNewBWList           = New(codeLoadUnitNewBWList, ClassLoadUnit, ScopeInternal, LevelHigh, "new black white list")

	// Sync unit error
	ErrSyncerUnitPanic                   = New(codeSyncerUnitPanic, ClassSyncUnit, ScopeInternal, LevelHigh, "panic error: %v")
	ErrSyncUnitInvalidTableName          = New(codeSyncUnitInvalidTableName, ClassSyncUnit, ScopeInternal, LevelHigh, "extract table name for DML error: %s")
	ErrSyncUnitTableNameQuery            = New(codeSyncUnitTableNameQuery, ClassSyncUnit, ScopeInternal, LevelHigh, "table name parse error: %s")
	ErrSyncUnitNotSupportedDML           = New(codeSyncUnitNotSupportedDML, ClassSyncUnit, ScopeInternal, LevelHigh, "DMLNode %v not supported")
	ErrSyncUnitAddTableInSharding        = New(codeSyncUnitAddTableInSharding, ClassSyncUnit, ScopeInternal, LevelMedium, "in sequence sharding, add table, activeDDL: %s, sharding sequence: %s not supported")
	ErrSyncUnitDropSchemaTableInSharding = New(codeSyncUnitDropSchemaTableInSharding, ClassSyncUnit, ScopeInternal, LevelMedium, "in sequence sharding try drop sources %v not supported, activeDDL: %s, sharding sequence: %s")
	ErrSyncUnitInvalidShardMeta          = New(codeSyncUnitInvalidShardMeta, ClassSyncUnit, ScopeInternal, LevelHigh, "invalid sharding meta data")
	ErrSyncUnitDDLWrongSequence          = New(codeSyncUnitDDLWrongSequence, ClassSyncUnit, ScopeInternal, LevelHigh, "detect inconsistent DDL sequence from source %+v, right DDL sequence should be %+v")
	ErrSyncUnitDDLActiveIndexLarger      = New(codeSyncUnitDDLActiveIndexLarger, ClassSyncUnit, ScopeInternal, LevelHigh, "activeIdx %d larger than length of global DDLItems: %v")
	ErrSyncUnitDupTableGroup             = New(codeSyncUnitDupTableGroup, ClassSyncUnit, ScopeInternal, LevelHigh, "table group %s exists")
	ErrSyncUnitShardingGroupNotFound     = New(codeSyncUnitShardingGroupNotFound, ClassSyncUnit, ScopeInternal, LevelHigh, "sharding group for `%s`.`%s` not found")
	ErrSyncUnitSafeModeSetCount          = New(codeSyncUnitSafeModeSetCount, ClassSyncUnit, ScopeInternal, LevelHigh, "")
	ErrSyncUnitCausalityConflict         = New(codeSyncUnitCausalityConflict, ClassSyncUnit, ScopeInternal, LevelHigh, "some conflicts in causality, must be resolved")
	// ErrSyncUnitDMLStatementFound defines an error which means we found unexpected dml statement found in query event
	ErrSyncUnitDMLStatementFound            = New(codeSyncUnitDMLStatementFound, ClassSyncUnit, ScopeInternal, LevelHigh, "only support ROW format binlog, unexpected DML statement found in query event")
	ErrSyncerUnitBinlogEventFilter          = New(codeSyncerUnitBinlogEventFilter, ClassSyncUnit, ScopeInternal, LevelHigh, "")
	ErrSyncerUnitInvalidReplicaEvent        = New(codeSyncerUnitInvalidReplicaEvent, ClassSyncUnit, ScopeInternal, LevelHigh, "invalid replication event type %v")
	ErrSyncerUnitParseStmt                  = New(codeSyncerUnitParseStmt, ClassSyncUnit, ScopeInternal, LevelHigh, "")
	ErrSyncerUnitUUIDNotLatest              = New(codeSyncerUnitUUIDNotLatest, ClassSyncUnit, ScopeInternal, LevelHigh, "UUID %s not the latest one in UUIDs %v")
	ErrSyncerUnitDDLExecChanCloseOrBusy     = New(codeSyncerUnitDDLExecChanCloseOrBusy, ClassSyncUnit, ScopeInternal, LevelHigh, "the chan has closed or already in sending")
	ErrSyncerUnitDDLChanDone                = New(codeSyncerUnitDDLChanDone, ClassSyncUnit, ScopeInternal, LevelHigh, "canceled from external")
	ErrSyncerUnitDDLChanCanceled            = New(codeSyncerUnitDDLChanCanceled, ClassSyncUnit, ScopeInternal, LevelHigh, "canceled by Close or Renew")
	ErrSyncerUnitDDLOnMultipleTable         = New(codeSyncerUnitDDLOnMultipleTable, ClassSyncUnit, ScopeInternal, LevelHigh, "ddl on multiple table: %s not supported")
	ErrSyncerUnitInjectDDLOnly              = New(codeSyncerUnitInjectDDLOnly, ClassSyncUnit, ScopeInternal, LevelLow, "only support inject DDL for sharding group to be synced currently, but got %s")
	ErrSyncerUnitInjectDDLWithoutSchema     = New(codeSyncerUnitInjectDDLWithoutSchema, ClassSyncUnit, ScopeInternal, LevelLow, "injected DDL %s without schema name not valid")
	ErrSyncerUnitNotSupportedOperate        = New(codeSyncerUnitNotSupportedOperate, ClassSyncUnit, ScopeInternal, LevelMedium, "op %s not supported")
	ErrSyncerUnitNilOperatorReq             = New(codeSyncerUnitNilOperatorReq, ClassSyncUnit, ScopeInternal, LevelMedium, "nil request not valid")
	ErrSyncerUnitDMLColumnNotMatch          = New(codeSyncerUnitDMLColumnNotMatch, ClassSyncUnit, ScopeInternal, LevelHigh, "Column count doesn't match value count: %d (columns) vs %d (values)")
	ErrSyncerUnitDMLOldNewValueMismatch     = New(codeSyncerUnitDMLOldNewValueMismatch, ClassSyncUnit, ScopeInternal, LevelHigh, "Old value count doesn't match new value count: %d (old) vs %d (new)")
	ErrSyncerUnitDMLPruneColumnMismatch     = New(codeSyncerUnitDMLPruneColumnMismatch, ClassSyncUnit, ScopeInternal, LevelHigh, "prune DML columns and data mismatch in length: %d (columns) %d (data)")
	ErrSyncerUnitNewBinlogEventFilter       = New(codeSyncerUnitNewBinlogEventFilter, ClassSyncUnit, ScopeInternal, LevelHigh, "new binlog event filter")
	ErrSyncerUnitGenTableRouter             = New(codeSyncerUnitGenTableRouter, ClassSyncUnit, ScopeInternal, LevelHigh, "generate table router")
	ErrSyncerUnitNewColumnMapping           = New(codeSyncerUnitNewColumnMapping, ClassSyncUnit, ScopeInternal, LevelHigh, "new column mapping")
	ErrSyncerUnitDoColumnMapping            = New(codeSyncerUnitDoColumnMapping, ClassSyncUnit, ScopeInternal, LevelHigh, "mapping row data %v for table `%s`.`%s`")
	ErrSyncerUnitCacheKeyNotFound           = New(codeSyncerUnitCacheKeyNotFound, ClassSyncUnit, ScopeInternal, LevelHigh, "cache key %s in %s not found")
	ErrSyncerUnitHeartbeatCheckConfig       = New(codeSyncerUnitHeartbeatCheckConfig, ClassSyncUnit, ScopeInternal, LevelMedium, "")
	ErrSyncerUnitHeartbeatRecordExists      = New(codeSyncerUnitHeartbeatRecordExists, ClassSyncUnit, ScopeInternal, LevelMedium, "heartbeat slave record for task %s already exists")
	ErrSyncerUnitHeartbeatRecordNotFound    = New(codeSyncerUnitHeartbeatRecordNotFound, ClassSyncUnit, ScopeInternal, LevelMedium, "heartbeat slave record for task %s not found")
	ErrSyncerUnitHeartbeatRecordNotValid    = New(codeSyncerUnitHeartbeatRecordNotValid, ClassSyncUnit, ScopeInternal, LevelMedium, "heartbeat record %s not valid")
	ErrSyncerUnitOnlineDDLInvalidMeta       = New(codeSyncerUnitOnlineDDLInvalidMeta, ClassSyncUnit, ScopeInternal, LevelHigh, "online ddl meta invalid")
	ErrSyncerUnitOnlineDDLSchemeNotSupport  = New(codeSyncerUnitOnlineDDLSchemeNotSupport, ClassSyncUnit, ScopeInternal, LevelHigh, "online ddl scheme (%s) not supported")
	ErrSyncerUnitOnlineDDLOnMultipleTable   = New(codeSyncerUnitOnlineDDLOnMultipleTable, ClassSyncUnit, ScopeInternal, LevelHigh, "online ddl changes on multiple table: %s not supported")
	ErrSyncerUnitGhostApplyEmptyTable       = New(codeSyncerUnitGhostApplyEmptyTable, ClassSyncUnit, ScopeInternal, LevelHigh, "empty tables not valid")
	ErrSyncerUnitGhostRenameTableNotValid   = New(codeSyncerUnitGhostRenameTableNotValid, ClassSyncUnit, ScopeInternal, LevelHigh, "tables should contain old and new table name")
	ErrSyncerUnitGhostRenameToGhostTable    = New(codeSyncerUnitGhostRenameToGhostTable, ClassSyncUnit, ScopeInternal, LevelHigh, "rename table to ghost table %s not supported")
	ErrSyncerUnitGhostRenameGhostTblToOther = New(codeSyncerUnitGhostRenameGhostTblToOther, ClassSyncUnit, ScopeInternal, LevelHigh, "rename ghost table to other ghost table %s not supported")
	ErrSyncerUnitGhostOnlineDDLOnGhostTbl   = New(codeSyncerUnitGhostOnlineDDLOnGhostTbl, ClassSyncUnit, ScopeInternal, LevelHigh, "online ddls on ghost table `%s`.`%s`")
	ErrSyncerUnitPTApplyEmptyTable          = New(codeSyncerUnitPTApplyEmptyTable, ClassSyncUnit, ScopeInternal, LevelHigh, "empty tables not valid")
	ErrSyncerUnitPTRenameTableNotValid      = New(codeSyncerUnitPTRenameTableNotValid, ClassSyncUnit, ScopeInternal, LevelHigh, "tables should contain old and new table name")
	ErrSyncerUnitPTRenameToGhostTable       = New(codeSyncerUnitPTRenameToGhostTable, ClassSyncUnit, ScopeInternal, LevelHigh, "rename table to ghost table %s not supported")
	ErrSyncerUnitPTRenameGhostTblToOther    = New(codeSyncerUnitPTRenameGhostTblToOther, ClassSyncUnit, ScopeInternal, LevelHigh, "rename ghost table to other ghost table %s not supported")
	ErrSyncerUnitPTOnlineDDLOnGhostTbl      = New(codeSyncerUnitPTOnlineDDLOnGhostTbl, ClassSyncUnit, ScopeInternal, LevelHigh, "online ddls on ghost table `%s`.`%s`")
	ErrSyncerUnitRemoteSteamerWithGTID      = New(codeSyncerUnitRemoteSteamerWithGTID, ClassSyncUnit, ScopeInternal, LevelHigh, "open remote streamer with GTID mode not supported")
	ErrSyncerUnitRemoteSteamerStartSync     = New(codeSyncerUnitRemoteSteamerStartSync, ClassSyncUnit, ScopeInternal, LevelHigh, "start syncing binlog from remote streamer")
	ErrSyncerUnitGetTableFromDB             = New(codeSyncerUnitGetTableFromDB, ClassSyncUnit, ScopeInternal, LevelHigh, "invalid table `%s`.`%s`")
	ErrSyncerUnitFirstEndPosNotFound        = New(codeSyncerUnitFirstEndPosNotFound, ClassSyncUnit, ScopeInternal, LevelHigh, "no valid End_log_pos of the first DDL exists for sharding group with source %s")
	ErrSyncerUnitResolveCasualityFail       = New(codeSyncerUnitResolveCasualityFail, ClassSyncUnit, ScopeInternal, LevelHigh, "resolve karam error %v")
	ErrSyncerUnitReopenStreamNotSupport     = New(codeSyncerUnitReopenStreamNotSupport, ClassSyncUnit, ScopeInternal, LevelHigh, "reopen %T not supported")
	ErrSyncerUnitUpdateConfigInSharding     = New(codeSyncerUnitUpdateConfigInSharding, ClassSyncUnit, ScopeInternal, LevelHigh, "try update config when some tables' (%v) sharding DDL not synced not supported")
	ErrSyncerUnitExecWithNoBlockingDDL      = New(codeSyncerUnitExecWithNoBlockingDDL, ClassSyncUnit, ScopeInternal, LevelHigh, "process unit not waiting for sharding DDL to sync")
	ErrSyncerUnitGenBWList                  = New(codeSyncerUnitGenBWList, ClassSyncUnit, ScopeInternal, LevelHigh, "generate black white list")
	ErrSyncerUnitHandleDDLFailed            = New(codeSyncerUnitHandleDDLFailed, ClassSyncUnit, ScopeInternal, LevelHigh, "fail to handle ddl job for %s")

	// DM-master error
	ErrMasterSQLOpNilRequest       = New(codeMasterSQLOpNilRequest, ClassDMMaster, ScopeInternal, LevelMedium, "nil request not valid")
	ErrMasterSQLOpNotSupport       = New(codeMasterSQLOpNotSupport, ClassDMMaster, ScopeInternal, LevelMedium, "op %s not supported")
	ErrMasterSQLOpWithoutSharding  = New(codeMasterSQLOpWithoutSharding, ClassDMMaster, ScopeInternal, LevelMedium, "operate request without --sharding specified not valid")
	ErrMasterGRPCCreateConn        = New(codeMasterGRPCCreateConn, ClassDMMaster, ScopeInternal, LevelHigh, "create grpc connection")
	ErrMasterGRPCSendOnCloseConn   = New(codeMasterGRPCSendOnCloseConn, ClassDMMaster, ScopeInternal, LevelHigh, "send request on a closed client")
	ErrMasterGRPCClientClose       = New(codeMasterGRPCClientClose, ClassDMMaster, ScopeInternal, LevelHigh, "close rpc client")
	ErrMasterGRPCInvalidReqType    = New(codeMasterGRPCInvalidReqType, ClassDMMaster, ScopeInternal, LevelHigh, "invalid request type: %v")
	ErrMasterGRPCRequestError      = New(codeMasterGRPCRequestError, ClassDMMaster, ScopeInternal, LevelHigh, "grpc request error")
	ErrMasterDeployMapperVerify    = New(codeMasterDeployMapperVerify, ClassDMMaster, ScopeInternal, LevelHigh, "user should specify valid relation between source(mysql/mariadb) and dm-worker, config %+v not valid")
	ErrMasterConfigParseFlagSet    = New(codeMasterConfigParseFlagSet, ClassDMMaster, ScopeInternal, LevelMedium, "parse config flag set")
	ErrMasterConfigUnknownItem     = New(codeMasterConfigUnknownItem, ClassDMMaster, ScopeInternal, LevelMedium, "master config contained unknown configuration options: %s")
	ErrMasterConfigInvalidFlag     = New(codeMasterConfigInvalidFlag, ClassDMMaster, ScopeInternal, LevelMedium, "'%s' is an invalid flag")
	ErrMasterConfigTomlTransform   = New(codeMasterConfigTomlTransform, ClassDMMaster, ScopeInternal, LevelMedium, "config toml transform")
	ErrMasterConfigTimeoutParse    = New(codeMasterConfigTimeoutParse, ClassDMMaster, ScopeInternal, LevelMedium, "parse rpc timeout str")
	ErrMasterConfigUpdateCfgFile   = New(codeMasterConfigUpdateCfgFile, ClassDMMaster, ScopeInternal, LevelHigh, "update config file")
	ErrMasterShardingDDLDiff       = New(codeMasterShardingDDLDiff, ClassDMMaster, ScopeInternal, LevelHigh, "sharding ddls in ddl lock %s is different with %s")
	ErrMasterStartService          = New(codeMasterStartService, ClassDMMaster, ScopeInternal, LevelHigh, "start server")
	ErrMasterNoEmitToken           = New(codeMasterNoEmitToken, ClassDMMaster, ScopeInternal, LevelHigh, "fail to get emit opportunity for worker %s")
	ErrMasterLockNotFound          = New(codeMasterLockNotFound, ClassDMMaster, ScopeInternal, LevelHigh, "lock with ID %s not found")
	ErrMasterLockIsResolving       = New(codeMasterLockIsResolving, ClassDMMaster, ScopeInternal, LevelHigh, "lock %s is resolving")
	ErrMasterWorkerCliNotFound     = New(codeMasterWorkerCliNotFound, ClassDMMaster, ScopeInternal, LevelHigh, "worker %s relevant worker-client not found")
	ErrMasterWorkerNotWaitLock     = New(codeMasterWorkerNotWaitLock, ClassDMMaster, ScopeInternal, LevelHigh, "worker %s not waiting for DDL lock %s")
	ErrMasterHandleSQLReqFail      = New(codeMasterHandleSQLReqFail, ClassDMMaster, ScopeInternal, LevelHigh, "request DDL lock %s owner %s handle SQLs request %s fail %s")
	ErrMasterOwnerExecDDL          = New(codeMasterOwnerExecDDL, ClassDMMaster, ScopeInternal, LevelHigh, "owner %s ExecuteDDL fail")
	ErrMasterPartWorkerExecDDLFail = New(codeMasterPartWorkerExecDDLFail, ClassDMMaster, ScopeInternal, LevelHigh, "DDL lock %s owner ExecuteDDL successfully, so DDL lock removed. but some dm-workers ExecuteDDL fail, you should to handle dm-worker directly")
	ErrMasterWorkerExistDDLLock    = New(codeMasterWorkerExistDDLLock, ClassDMMaster, ScopeInternal, LevelHigh, "worker %s exist ddl lock, please unlock ddl lock first")
	ErrMasterGetWorkerCfgExtractor = New(codeMasterGetWorkerCfgExtractor, ClassDMMaster, ScopeInternal, LevelHigh, "")
	ErrMasterTaskConfigExtractor   = New(codeMasterTaskConfigExtractor, ClassDMMaster, ScopeInternal, LevelHigh, "")
	ErrMasterWorkerArgsExtractor   = New(codeMasterWorkerArgsExtractor, ClassDMMaster, ScopeInternal, LevelHigh, "")
	ErrMasterQueryWorkerConfig     = New(codeMasterQueryWorkerConfig, ClassDMMaster, ScopeInternal, LevelHigh, "")
	ErrMasterOperNotFound          = New(codeMasterOperNotFound, ClassDMMaster, ScopeInternal, LevelHigh, "operation %d of task %s on worker %s not found, please execute `query-status` to check status")
	ErrMasterOperRespNotSuccess    = New(codeMasterOperRespNotSuccess, ClassDMMaster, ScopeInternal, LevelHigh, "operation %d of task %s on worker %s not success: %s")
	ErrMasterOperRequestTimeout    = New(codeMasterOperRequestTimeout, ClassDMMaster, ScopeInternal, LevelHigh, "request to dm-worker %s is timeout, but request may be successful, please execute `query-status` to check status")
	ErrMasterHandleHTTPApis        = New(codeMasterHandleHTTPApis, ClassDMMaster, ScopeInternal, LevelHigh, "serve http apis to grpc")
	ErrMasterHostPortNotValid      = New(codeMasterHostPortNotValid, ClassDMMaster, ScopeInternal, LevelHigh, "host:port '%s' not valid")

	// DM-worker error
	ErrWorkerParseFlagSet            = New(codeWorkerParseFlagSet, ClassDMWorker, ScopeInternal, LevelMedium, "parse dm-worker config flag set")
	ErrWorkerInvalidFlag             = New(codeWorkerInvalidFlag, ClassDMWorker, ScopeInternal, LevelMedium, "'%s' is an invalid flag")
	ErrWorkerDecodeConfigFromFile    = New(codeWorkerDecodeConfigFromFile, ClassDMWorker, ScopeInternal, LevelMedium, "toml decode file")
	ErrWorkerUndecodedItemFromFile   = New(codeWorkerUndecodedItemFromFile, ClassDMWorker, ScopeInternal, LevelMedium, "worker config contains unknown configuration options: %s")
	ErrWorkerNeedSourceID            = New(codeWorkerNeedSourceID, ClassDMWorker, ScopeInternal, LevelMedium, "dm-worker should bind a non-empty source ID which represents a MySQL/MariaDB instance or a replica group. \n notice: if you use old version dm-ansible, please update to newest version.")
	ErrWorkerTooLongSourceID         = New(codeWorkerTooLongSourceID, ClassDMWorker, ScopeInternal, LevelMedium, "the length of source ID %s is more than max allowed value %d")
	ErrWorkerRelayBinlogName         = New(codeWorkerRelayBinlogName, ClassDMWorker, ScopeInternal, LevelMedium, "relay-binlog-name %s not valid")
	ErrWorkerWriteConfigFile         = New(codeWorkerWriteConfigFile, ClassDMWorker, ScopeInternal, LevelMedium, "write config to local file")
	ErrWorkerLogInvalidHandler       = New(codeWorkerLogInvalidHandler, ClassDMWorker, ScopeInternal, LevelHigh, "handler is nil, please pass a leveldb.DB or leveldb.Transaction")
	ErrWorkerLogPointerInvalid       = New(codeWorkerLogPointerInvalid, ClassDMWorker, ScopeInternal, LevelHigh, "not valid length data as pointer % X")
	ErrWorkerLogFetchPointer         = New(codeWorkerLogFetchPointer, ClassDMWorker, ScopeInternal, LevelHigh, "fetch handled pointer")
	ErrWorkerLogUnmarshalPointer     = New(codeWorkerLogUnmarshalPointer, ClassDMWorker, ScopeInternal, LevelHigh, "unmarshal handle pointer % X")
	ErrWorkerLogClearPointer         = New(codeWorkerLogClearPointer, ClassDMWorker, ScopeInternal, LevelHigh, "clear handled pointer")
	ErrWorkerLogTaskKeyNotValid      = New(codeWorkerLogTaskKeyNotValid, ClassDMWorker, ScopeInternal, LevelHigh, "not valid length data as task log key % X")
	ErrWorkerLogUnmarshalTaskKey     = New(codeWorkerLogUnmarshalTaskKey, ClassDMWorker, ScopeInternal, LevelHigh, "unmarshal task log % X")
	ErrWorkerLogFetchLogIter         = New(codeWorkerLogFetchLogIter, ClassDMWorker, ScopeInternal, LevelHigh, "fetch logs from meta with handle pointer %+v")
	ErrWorkerLogGetTaskLog           = New(codeWorkerLogGetTaskLog, ClassDMWorker, ScopeInternal, LevelHigh, "get task log %d from leveldb")
	ErrWorkerLogUnmarshalBinary      = New(codeWorkerLogUnmarshalBinary, ClassDMWorker, ScopeInternal, LevelHigh, "unmarshal task log binary % X")
	ErrWorkerLogForwardPointer       = New(codeWorkerLogForwardPointer, ClassDMWorker, ScopeInternal, LevelHigh, "forward handled pointer to %d")
	ErrWorkerLogMarshalTask          = New(codeWorkerLogMarshalTask, ClassDMWorker, ScopeInternal, LevelHigh, "marshal task log %+v")
	ErrWorkerLogSaveTask             = New(codeWorkerLogSaveTask, ClassDMWorker, ScopeInternal, LevelHigh, "save task log %+v")
	ErrWorkerLogDeleteKV             = New(codeWorkerLogDeleteKV, ClassDMWorker, ScopeInternal, LevelHigh, "delete kv with prefix % X until % X")
	ErrWorkerLogDeleteKVIter         = New(codeWorkerLogDeleteKVIter, ClassDMWorker, ScopeInternal, LevelHigh, "iterate kv with prefix % X")
	ErrWorkerLogUnmarshalTaskMeta    = New(codeWorkerLogUnmarshalTaskMeta, ClassDMWorker, ScopeInternal, LevelHigh, "unmarshal task meta % X")
	ErrWorkerLogFetchTaskFromMeta    = New(codeWorkerLogFetchTaskFromMeta, ClassDMWorker, ScopeInternal, LevelHigh, "fetch tasks from meta with prefix % X")
	ErrWorkerLogVerifyTaskMeta       = New(codeWorkerLogVerifyTaskMeta, ClassDMWorker, ScopeInternal, LevelHigh, "")
	ErrWorkerLogSaveTaskMeta         = New(codeWorkerLogSaveTaskMeta, ClassDMWorker, ScopeInternal, LevelHigh, "save task meta %s into kv db")
	ErrWorkerLogGetTaskMeta          = New(codeWorkerLogGetTaskMeta, ClassDMWorker, ScopeInternal, LevelHigh, "get task meta %s from kv db")
	ErrWorkerLogDeleteTaskMeta       = New(codeWorkerLogDeleteTaskMeta, ClassDMWorker, ScopeInternal, LevelHigh, "delete task meta %s from kv db")
	ErrWorkerMetaTomlTransform       = New(codeWorkerMetaTomlTransform, ClassDMWorker, ScopeInternal, LevelHigh, "meta toml transform")
	ErrWorkerMetaOldFileStat         = New(codeWorkerMetaOldFileStat, ClassDMWorker, ScopeInternal, LevelHigh, "get old file stat")
	ErrWorkerMetaOldReadFile         = New(codeWorkerMetaOldReadFile, ClassDMWorker, ScopeInternal, LevelHigh, "read old metadata file %s")
	ErrWorkerMetaEncodeTask          = New(codeWorkerMetaEncodeTask, ClassDMWorker, ScopeInternal, LevelHigh, "encode task %v")
	ErrWorkerMetaRemoveOldDir        = New(codeWorkerMetaRemoveOldDir, ClassDMWorker, ScopeInternal, LevelHigh, "remove old meta dir")
	ErrWorkerMetaTaskLogNotFound     = New(codeWorkerMetaTaskLogNotFound, ClassDMWorker, ScopeInternal, LevelHigh, "any task operation log not found")
	ErrWorkerMetaHandleTaskOrder     = New(codeWorkerMetaHandleTaskOrder, ClassDMWorker, ScopeInternal, LevelHigh, "please handle task operation order by log ID, the log need to be handled is %+v, not %+v")
	ErrWorkerMetaOpenTxn             = New(codeWorkerMetaOpenTxn, ClassDMWorker, ScopeInternal, LevelHigh, "open kv db txn")
	ErrWorkerMetaCommitTxn           = New(codeWorkerMetaCommitTxn, ClassDMWorker, ScopeInternal, LevelHigh, "commit kv db txn")
	ErrWorkerRelayStageNotValid      = New(codeWorkerRelayStageNotValid, ClassDMWorker, ScopeInternal, LevelHigh, "current stage is %s, %s required, relay op %s")
	ErrWorkerRelayOperNotSupport     = New(codeWorkerRelayOperNotSupport, ClassDMWorker, ScopeInternal, LevelHigh, "operation %s not supported")
	ErrWorkerOpenKVDBFile            = New(codeWorkerOpenKVDBFile, ClassDMWorker, ScopeInternal, LevelHigh, "open kv db file")
	ErrWorkerUpgradeCheckKVDir       = New(codeWorkerUpgradeCheckKVDir, ClassDMWorker, ScopeInternal, LevelHigh, "")
	ErrWorkerMarshalVerBinary        = New(codeWorkerMarshalVerBinary, ClassDMWorker, ScopeInternal, LevelHigh, "marshal version %s to binary data")
	ErrWorkerUnmarshalVerBinary      = New(codeWorkerUnmarshalVerBinary, ClassDMWorker, ScopeInternal, LevelHigh, "unmarshal version from data % X")
	ErrWorkerGetVersionFromKV        = New(codeWorkerGetVersionFromKV, ClassDMWorker, ScopeInternal, LevelHigh, "load version with key %v from levelDB")
	ErrWorkerSaveVersionToKV         = New(codeWorkerSaveVersionToKV, ClassDMWorker, ScopeInternal, LevelHigh, "save version %v into levelDB with key %v")
	ErrWorkerVerAutoDowngrade        = New(codeWorkerVerAutoDowngrade, ClassDMWorker, ScopeInternal, LevelHigh, "the previous version %s is newer than current %s, automatic downgrade is not supported now, please handle it manually")
	ErrWorkerStartService            = New(codeWorkerStartService, ClassDMWorker, ScopeInternal, LevelHigh, "start server")
	ErrWorkerAlreadyClosed           = New(codeWorkerAlreadyClosed, ClassDMWorker, ScopeInternal, LevelHigh, "worker already closed")
	ErrWorkerNotRunningStage         = New(codeWorkerNotRunningStage, ClassDMWorker, ScopeInternal, LevelHigh, "current stage is not running not valid")
	ErrWorkerNotPausedStage          = New(codeWorkerNotPausedStage, ClassDMWorker, ScopeInternal, LevelHigh, "current stage is not paused not valid")
	ErrWorkerUpdateTaskStage         = New(codeWorkerUpdateTaskStage, ClassDMWorker, ScopeInternal, LevelHigh, "can only update task on Paused stage, but current stage is %s")
	ErrWorkerMigrateStopRelay        = New(codeWorkerMigrateStopRelay, ClassDMWorker, ScopeInternal, LevelHigh, "relay unit has stopped, can not be migrated")
	ErrWorkerSubTaskNotFound         = New(codeWorkerSubTaskNotFound, ClassDMWorker, ScopeInternal, LevelHigh, "sub task with name %s not found")
	ErrWorkerSubTaskExists           = New(codeWorkerSubTaskExists, ClassDMWorker, ScopeInternal, LevelHigh, "sub task %s already exists")
	ErrWorkerOperSyncUnitOnly        = New(codeWorkerOperSyncUnitOnly, ClassDMWorker, ScopeInternal, LevelHigh, "such operation is only available for syncer, but now syncer is not running. current unit is %s")
	ErrWorkerRelayUnitStage          = New(codeWorkerRelayUnitStage, ClassDMWorker, ScopeInternal, LevelHigh, "Worker's relay log unit in invalid stage: %s")
	ErrWorkerNoSyncerRunning         = New(codeWorkerNoSyncerRunning, ClassDMWorker, ScopeInternal, LevelHigh, "there is a subtask does not run syncer")
	ErrWorkerCannotUpdateSourceID    = New(codeWorkerCannotUpdateSourceID, ClassDMWorker, ScopeInternal, LevelHigh, "update source ID is not allowed")
	ErrWorkerNoAvailUnits            = New(codeWorkerNoAvailUnits, ClassDMWorker, ScopeInternal, LevelHigh, "subtask %s has no dm units for mode %s")
	ErrWorkerDDLLockInfoNotFound     = New(codeWorkerDDLLockInfoNotFound, ClassDMWorker, ScopeInternal, LevelHigh, "DDLLockInfo with ID %s not found")
	ErrWorkerDDLLockInfoExists       = New(codeWorkerDDLLockInfoExists, ClassDMWorker, ScopeInternal, LevelHigh, "DDLLockInfo for task %s already exists")
	ErrWorkerCacheDDLInfoExists      = New(codeWorkerCacheDDLInfoExists, ClassDMWorker, ScopeInternal, LevelHigh, "CacheDDLInfo for task %s already exists")
	ErrWorkerExecSkipDDLConflict     = New(codeWorkerExecSkipDDLConflict, ClassDMWorker, ScopeInternal, LevelHigh, "execDDL and skipDDL can not specify both at the same time")
	ErrWorkerExecDDLSyncerOnly       = New(codeWorkerExecDDLSyncerOnly, ClassDMWorker, ScopeInternal, LevelHigh, "only syncer support ExecuteDDL, but current unit is %s")
	ErrWorkerExecDDLTimeout          = New(codeWorkerExecDDLTimeout, ClassDMWorker, ScopeInternal, LevelHigh, "ExecuteDDL timeout (exceeding %s), try use `query-status` to query whether the DDL is still blocking")
	ErrWorkerWaitRelayCatchupTimeout = New(codeWorkerWaitRelayCatchupTimeout, ClassDMWorker, ScopeInternal, LevelHigh, "waiting for relay binlog pos to catch up with loader end binlog pos is timeout (exceeding %s), loader end binlog pos: %s, relay binlog pos: %s")
	ErrWorkerRelayIsPurging          = New(codeWorkerRelayIsPurging, ClassDMWorker, ScopeInternal, LevelHigh, "relay log purger is purging, cannot start sub task %s, please try again later")
	ErrWorkerHostPortNotValid        = New(codeWorkerHostPortNotValid, ClassDMWorker, ScopeInternal, LevelHigh, "host:port '%s' not valid")

	// DM-tracer error
	ErrTracerParseFlagSet        = New(codeTracerParseFlagSet, ClassDMTracer, ScopeInternal, LevelMedium, "parse dm-tracer config flag set")
	ErrTracerConfigTomlTransform = New(codeTracerConfigTomlTransform, ClassDMTracer, ScopeInternal, LevelMedium, "config toml transform")
	ErrTracerConfigInvalidFlag   = New(codeTracerConfigInvalidFlag, ClassDMTracer, ScopeInternal, LevelMedium, "'%s' is an invalid flag")
	ErrTracerTraceEventNotFound  = New(codeTracerTraceEventNotFound, ClassDMTracer, ScopeInternal, LevelMedium, "trace event %s not found")
	ErrTracerTraceIDNotProvided  = New(codeTracerTraceIDNotProvided, ClassDMTracer, ScopeInternal, LevelMedium, "trace id not provided")
	ErrTracerParamNotValid       = New(codeTracerParamNotValid, ClassDMTracer, ScopeInternal, LevelMedium, "param %s value %s not valid")
	ErrTracerPostMethodOnly      = New(codeTracerPostMethodOnly, ClassDMTracer, ScopeInternal, LevelMedium, "post method only")
	ErrTracerEventAssertionFail  = New(codeTracerEventAssertionFail, ClassDMTracer, ScopeInternal, LevelHigh, "type %s event: %v not valid")
	ErrTracerEventTypeNotValid   = New(codeTracerEventTypeNotValid, ClassDMTracer, ScopeInternal, LevelHigh, "trace event type %d not valid")
	ErrTracerStartService        = New(codeTracerStartService, ClassDMTracer, ScopeInternal, LevelHigh, "start server")
)

Error instances

Functions

func Annotate 

func Annotate(err error, message string) error

Annotate tries to convert err to *Error and adds a message to it. This API is designed to reset Error message but keeps its original trace stack

func Annotatef 

func Annotatef(err error, format string, args ...interface{}) error

Annotatef tries to convert err to *Error and adds a message to it.

func DBErrorAdapt 

func DBErrorAdapt(err error, defaultErr *Error, args ...interface{}) error

DBErrorAdapt is an adapter to change raw database error to *Error object. If err is already an *Error object, return it directly.

func DBErrorAdaptArgs 

func DBErrorAdaptArgs(err error, defaultErr *Error, args ...interface{}) error

DBErrorAdaptArgs is an adapter to change raw database error to *Error object. If err is already an *Error object, return it directly.

func Message 

func Message(err error) string

Message returns `getMsg()` value if err is an *Error instance, else returns `Error()` value

func WithClass 

func WithClass(err error, class ErrClass) error

WithClass tries to set given class to *Error, if err is not an *Error instance, wrap it with error class instead

func WithScope 

func WithScope(err error, scope ErrScope) error

WithScope tries to set given scope to *Error, if err is not an *Error instance, wrap it with error scope instead

Types

type ErrClass 

type ErrClass int

ErrClass represents a class of errors 

const (
	ClassDatabase ErrClass = iota + 1
	ClassFunctional
	ClassConfig
	ClassBinlogOp
	ClassCheckpoint
	ClassTaskCheck
	ClassRelayEventLib
	ClassRelayUnit
	ClassDumpUnit
	ClassLoadUnit
	ClassSyncUnit
	ClassDMMaster
	ClassDMWorker
	ClassDMTracer
)

Error classes

func (ErrClass) String 

func (ec ErrClass) String() string

String implements fmt.Stringer interface

type ErrCode 

type ErrCode int

ErrCode is used as the unique identifier of a specific error type.

type ErrLevel 

type ErrLevel int

ErrLevel represents the emergency level of a specific error type 

const (
	LevelLow ErrLevel = iota + 1
	LevelMedium
	LevelHigh
)

Error levels

func (ErrLevel) String 

func (el ErrLevel) String() string

String implements fmt.Stringer interface

type ErrScope 

type ErrScope int

ErrScope represents the error occurs environment, such as upstream DB error, downstream DB error, DM internal error etc. 

const (
	ScopeNotSet ErrScope = iota
	ScopeUpstream
	ScopeDownstream
	ScopeInternal
)

Error scopes

func (ErrScope) String 

func (es ErrScope) String() string

String implements fmt.Stringer interface

type Error 

type Error struct {
	// contains filtered or unexported fields
}

Error implements error interface and add more useful fields

func New 

func New(code ErrCode, class ErrClass, scope ErrScope, level ErrLevel, message string) *Error

New creates a new *Error instance

func (*Error) AnnotateDelegate 

func (e *Error) AnnotateDelegate(err error, message string, args ...interface{}) error

AnnotateDelegate resets the message of *Error and Delegate with error and new args

func (*Error) Cause 

func (e *Error) Cause() error

Cause implements causer.Cause defined in pingcap/errors and returns the raw cause of an *Error

func (*Error) Class 

func (e *Error) Class() ErrClass

Class returns ErrClass

func (*Error) Code 

func (e *Error) Code() ErrCode

Code returns ErrCode

func (*Error) Delegate 

func (e *Error) Delegate(err error, args ...interface{}) error

Delegate creates a new *Error with the same fields of the give *Error, except for new arguments, it also sets the err as raw cause of *Error

func (*Error) Equal 

func (e *Error) Equal(err error) bool

Equal checks if err equals to e.

func (*Error) Error 

func (e *Error) Error() string

Error implements error interface.

func (*Error) Format 

func (e *Error) Format(s fmt.State, verb rune)

Format accepts flags that alter the printing of some verbs

func (*Error) Generate 

func (e *Error) Generate(args ...interface{}) error

Generate generates a new *Error with the same class and code, and new arguments.

func (*Error) Generatef 

func (e *Error) Generatef(format string, args ...interface{}) error

Generatef generates a new *Error with the same class and code, and a new formatted message.

func (*Error) Level 

func (e *Error) Level() ErrLevel

Level returns ErrLevel

func (*Error) New 

func (e *Error) New(message string) error

New generates a new *Error with the same class and code, and replace message with new message

func (*Error) Scope 

func (e *Error) Scope() ErrScope

Scope returns ErrScope

func (*Error) SetMessage 

func (e *Error) SetMessage(message string) *Error

SetMessage clones an Error and resets its message

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.