Error Codes
MongoDB will return one of the following codes when an error occurs. Use this
guide to interpret logs and when troubleshooting
issues with mongod and mongos instances.
Code  | Cause  | 
|---|---|
InternalError  | |
BadValue  | |
NoSuchKey  | |
GraphContainsCycle  | |
HostUnreachable  | |
HostNotFound  | |
UnknownError  | |
FailedToParse  | |
CannotMutateObject  | |
UserNotFound  | |
UnsupportedFormat  | |
Unauthorized  | |
TypeMismatch  | |
Overflow  | |
InvalidLength  | |
ProtocolError  | |
AuthenticationFailed  | |
CannotReuseObject  | |
IllegalOperation  | |
EmptyArrayOperation  | |
InvalidBSON  | |
AlreadyInitialized  | |
LockTimeout  | |
RemoteValidationError  | |
NamespaceNotFound  | |
IndexNotFound  | |
PathNotViable  | |
NonExistentPath  | |
InvalidPath  | |
RoleNotFound  | |
RolesNotRelated  | |
PrivilegeNotFound  | |
CannotBackfillArray  | |
UserModificationFailed  | |
RemoteChangeDetected  | |
FileRenameFailed  | |
FileNotOpen  | |
FileStreamFailed  | |
ConflictingUpdateOperators  | |
FileAlreadyOpen  | |
LogWriteFailed  | |
CursorNotFound  | |
UserDataInconsistent  | |
LockBusy  | |
NoMatchingDocument  | |
NamespaceExists  | |
InvalidRoleModification  | |
MaxTimeMSExpired  | |
ManualInterventionRequired  | |
DollarPrefixedFieldName  | |
InvalidIdField  | |
NotSingleValueField  | |
InvalidDBRef  | |
EmptyFieldName  | |
DottedFieldName  | |
RoleModificationFailed  | |
CommandNotFound  | |
ShardKeyNotFound  | |
OplogOperationUnsupported  | |
StaleShardVersion  | |
WriteConcernTimeout  | |
MultipleErrorsOccurred  | |
ImmutableField  | |
CannotCreateIndex  | |
IndexAlreadyExists  | |
AuthSchemaIncompatible  | |
ShardNotFound  | |
ReplicaSetNotFound  | |
InvalidOptions  | |
InvalidNamespace  | |
NodeNotFound  | |
WriteConcernLegacyOK  | |
NoReplicationEnabled  | |
OperationIncomplete  | |
CommandResultSchemaViolation  | |
UnknownReplWriteConcern  | |
RoleDataInconsistent  | |
NoMatchParseContext  | |
NoProgressMade  | |
RemoteResultsUnavailable  | |
IndexOptionsConflict  | |
IndexKeySpecsConflict  | |
CannotSplit  | |
NetworkTimeout  | |
CallbackCanceled  | |
ShutdownInProgress  | |
SecondaryAheadOfPrimary  | |
InvalidReplicaSetConfig  | |
NotYetInitialized  | |
NotSecondary  | |
OperationFailed  | |
NoProjectionFound  | |
DBPathInUse  | |
UnsatisfiableWriteConcern  | |
OutdatedClient  | |
IncompatibleAuditMetadata  | |
NewReplicaSetConfigurationIncompatible  | |
NodeNotElectable  | |
IncompatibleShardingMetadata  | |
DistributedClockSkewed  | |
LockFailed  | |
InconsistentReplicaSetNames  | |
ConfigurationInProgress  | |
CannotInitializeNodeWithData  | |
NotExactValueField  | |
WriteConflict  | |
InitialSyncFailure  | |
InitialSyncOplogSourceMissing  | |
CommandNotSupported  | |
DocTooLargeForCapped  | |
ConflictingOperationInProgress  | |
NamespaceNotSharded  | |
InvalidSyncSource  | |
OplogStartMissing  | |
DocumentValidationFailure (only for the document validator on collections)  | |
NotAReplicaSet  | |
IncompatibleElectionProtocol  | |
CommandFailed  | |
RPCProtocolNegotiationFailed  | |
UnrecoverableRollbackError  | |
LockNotFound  | |
LockStateChangeFailed  | |
SymbolNotFound  | |
FailedToSatisfyReadPreference  | |
ReadConcernMajorityNotAvailableYet  | |
StaleTerm  | |
CappedPositionLost  | |
IncompatibleShardingConfigVersion  | |
RemoteOplogStale  | |
JSInterpreterFailure  | |
InvalidSSLConfiguration  | |
SSLHandshakeFailed  | |
JSUncatchableError  | |
CursorInUse  | |
IncompatibleCatalogManager  | |
PooledConnectionsDropped  | |
ExceededMemoryLimit  | |
ZLibError  | |
ReadConcernMajorityNotEnabled  | |
NoConfigPrimary  | |
StaleEpoch  | |
OperationCannotBeBatched  | |
OplogOutOfOrder  | |
ChunkTooBig  | |
InconsistentShardIdentity  | |
CannotApplyOplogWhilePrimary  | |
CanRepairToDowngrade  | |
MustUpgrade  | |
DurationOverflow  | |
MaxStalenessOutOfRange  | |
IncompatibleCollationVersion  | |
CollectionIsEmpty  | |
ZoneStillInUse  | |
InitialSyncActive  | |
ViewDepthLimitExceeded  | |
CommandNotSupportedOnView  | |
OptionNotSupportedOnView  | |
InvalidPipelineOperator  | |
CommandOnShardedViewNotSupportedOnMongod  | |
TooManyMatchingDocuments  | |
CannotIndexParallelArrays  | |
TransportSessionClosed  | |
TransportSessionNotFound  | |
TransportSessionUnknown  | |
QueryPlanKilled  | |
FileOpenFailed  | |
ZoneNotFound  | |
RangeOverlapConflict  | |
WindowsPdhError  | |
BadPerfCounterPath  | |
AmbiguousIndexKeyPattern  | |
InvalidViewDefinition  | |
ClientMetadataMissingField  | |
ClientMetadataAppNameTooLarge  | |
ClientMetadataDocumentTooLarge  | |
ClientMetadataCannotBeMutated  | |
LinearizableReadConcernError  | |
IncompatibleServerVersion  | |
PrimarySteppedDown  | |
MasterSlaveConnectionFailure  | |
FailPointEnabled  | |
NoShardingEnabled  | |
BalancerInterrupted  | |
ViewPipelineMaxSizeExceeded  | |
InvalidIndexSpecificationOption  | |
ReplicaSetMonitorRemoved  | |
ChunkRangeCleanupPending  | |
CannotBuildIndexKeys  | |
NetworkInterfaceExceededTimeLimit  | |
ShardingStateNotInitialized  | |
TimeProofMismatch  | |
ClusterTimeFailsRateLimiter  | |
NoSuchSession  | |
InvalidUUID  | |
TooManyLocks  | |
StaleClusterTime  | |
CannotVerifyAndSignLogicalTime  | |
KeyNotFound  | |
IncompatibleRollbackAlgorithm  | |
DuplicateSession  | |
AuthenticationRestrictionUnmet  | |
DatabaseDropPending  | |
ElectionInProgress  | |
IncompleteTransactionHistory  | |
UpdateOperationFailed  | |
FTDCPathNotSet  | |
FTDCPathAlreadySet  | |
IndexModified  | |
CloseChangeStream  | |
IllegalOpMsgFlag  | |
QueryFeatureNotAllowed  | |
TransactionTooOld  | |
AtomicityFailure  | |
CannotImplicitlyCreateCollection  | |
SessionTransferIncomplete  | |
MustDowngrade  | |
DNSHostNotFound  | |
DNSProtocolError  | |
MaxSubPipelineDepthExceeded  | |
TooManyDocumentSequences  | |
RetryChangeStream  | |
InternalErrorNotSupported  | |
ForTestingErrorExtraInfo  | |
CursorKilled  | |
NotImplemented  | |
SnapshotTooOld  | |
DNSRecordTypeMismatch  | |
ConversionFailure  | |
CannotCreateCollection  | |
IncompatibleWithUpgradedServer  | |
BrokenPromise  | |
SnapshotUnavailable  | |
ProducerConsumerQueueBatchTooLarge  | |
ProducerConsumerQueueEndClosed  | |
StaleDbVersion  | |
StaleChunkHistory  | |
NoSuchTransaction  | |
ReentrancyNotAllowed  | |
FreeMonHttpInFlight  | |
FreeMonHttpTemporaryFailure  | |
FreeMonHttpPermanentFailure  | |
TransactionCommitted  | |
TransactionTooLarge  | |
UnknownFeatureCompatibilityVersion  | |
KeyedExecutorRetry  | |
InvalidResumeToken  | |
TooManyLogicalSessions  | |
ExceededTimeLimit  | |
OperationNotSupportedInTransaction  | |
TooManyFilesOpen  | |
OrphanedRangeCleanUpFailed  | |
FailPointSetFailed  | |
PreparedTransactionInProgress  | |
CannotBackup  | |
DataModifiedByRepair  | |
RepairedReplicaSetNode  | |
JSInterpreterFailureWithStack  | |
MigrationConflict  | |
ProducerConsumerQueueProducerQueueDepthExceeded  | |
ProducerConsumerQueueConsumed  | |
ExchangePassthrough  | |
IndexBuildAborted  | |
AlarmAlreadyFulfilled  | |
UnsatisfiableCommitQuorum  | |
ClientDisconnect  | |
ChangeStreamFatalError  | |
TransactionCoordinatorSteppingDown  | |
TransactionCoordinatorReachedAbortDecision  | |
WouldChangeOwningShard  | |
ForTestingErrorExtraInfoWithExtraInfoInNamespace  | |
IndexBuildAlreadyInProgress  | |
ChangeStreamHistoryLost  | |
TransactionCoordinatorDeadlineTaskCanceled  | |
ChecksumMismatch  | |
WaitForMajorityServiceEarlierOpTimeAvailable  | |
TransactionExceededLifetimeLimitSeconds  | |
NoQueryExecutionPlans  | |
QueryExceededMemoryLimitNoDiskUseAllowed  | |
InvalidSeedList  | |
InvalidTopologyType  | |
InvalidHeartBeatFrequency  | |
TopologySetNameRequired  | |
HierarchicalAcquisitionLevelViolation  | |
InvalidServerType  | |
OCSPCertificateStatusRevoked  | |
RangeDeletionAbandonedBecauseCollectionWithUUIDDoesNotExist  | |
DataCorruptionDetected  | |
OCSPCertificateStatusUnknown  | |
SplitHorizonChange  | |
ShardInvalidatedForTargeting  | |
RangeDeletionAbandonedBecauseTaskDocumentDoesNotExist  | |
CurrentConfigNotCommittedYet  | |
ExhaustCommandFinished  | |
PeriodicJobIsStopped  | |
TransactionCoordinatorCanceled  | |
OperationIsKilledAndDelisted  | |
ResumableRangeDeleterDisabled  | |
ObjectIsBusy  | |
TooStaleToSyncFromSource  | |
QueryTrialRunCompleted  | |
ConnectionPoolExpired  | |
ForTestingOptionalErrorExtraInfo  | |
MovePrimaryInProgress  | |
TenantMigrationConflict  | |
TenantMigrationCommitted  | |
APIVersionError  | |
APIStrictError  | |
APIDeprecationError  | |
TenantMigrationAborted  | |
OplogQueryMinTsMissing  | |
NoSuchTenantMigration  | |
TenantMigrationAccessBlockerShuttingDown  | |
TenantMigrationInProgress  | |
SkipCommandExecution  | |
FailedToRunWithReplyBuilder  | |
CannotDowngrade  | |
ServiceExecutorInShutdown  | |
MechanismUnavailable  | |
TenantMigrationForgotten  | |
SocketException  | |
CannotGrowDocumentInCappedNamespace  | |
NotWritablePrimary  | |
BSONObjectTooLarge  | |
DuplicateKey  | |
InterruptedAtShutdown  | |
Interrupted  | |
InterruptedDueToReplStateChange  | |
BackgroundOperationInProgressForDatabase  | |
BackgroundOperationInProgressForNamespace  | |
MergeStageNoMatchingDocument  | |
DatabaseDifferCase  | |
StaleConfig  | |
NotPrimaryNoSecondaryOk  | |
NotPrimaryOrSecondary  | |
OutOfDiskSpace  | |
ClientMarkedKilled  |