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Ingestion error codes

This article contains error codes that may occur during data ingestion.

When you enable failed ingestion diagnostic logs on your cluster, you can see error codes in the Failed ingestion operation log.

You can use the .show ingestion failures command to present information on data ingestion management command failures, though this command excludes failures from other stages of the ingestion process. For a comprehensive view of failures across all stages, refer to ingestion metrics and diagnostic logs.

The Ingestion result metric provides information about the Category of ingestion errors, although it doesn't show the specific error codes. The errors in this article are organized by these categories.

Note

For transient errors or 'General_RetryAttemptsExceeded' error, retrying the ingestion may succeed.

Category: BadFormat

Error message Description Permanent/Transient
Stream_WrongNumberOfFields Inconsistent number of fields in the input records. HRESULT: 0x80DA0008 Permanent
Stream_ClosingQuoteMissing Invalid CSV format. Closing quote is missing. HRESULT: 0x80DA000b Permanent
BadRequest_InvalidBlob Blob is invalid. Permanent
BadRequest_EmptyArchive Archive is empty. Permanent
BadRequest_InvalidArchive Archive is invalid. Permanent
BadRequest_InvalidMapping Failed to parse ingestion mapping.
For more information about how to write ingestion mapping, see Data mappings.
Permanent
BadRequest_InvalidMappingReference Invalid mapping reference. Permanent
BadRequest_FormatNotSupported Format isn't supported. This may be because you're using a format not supported by a particular data connection.
For more information about data formats supported for ingestion, see Supported data formats.
Permanent
BadRequest_InconsistentMapping Supported ingestion mapping isn't consistent with the existing table schema. Permanent
BadRequest_UnexpectedCharacterInInputStream Unexpected character in the input stream. Permanent

Category: BadRequest

Error message Description Permanent/Transient
BadRequest_EmptyBlob Blob is empty. Permanent
BadRequest_NoRecordsOrWrongFormat Blob is empty or specified ingestion format doesn't match blob content (for example, JSON format used instead of MULTIJSON). Permanent
BadRequest_EmptyBlobUri Blob Uri is empty. Permanent
BadRequest_DuplicateMapping Ingestion properties include both ingestionMapping and ingestionMappingReference, which isn't valid. Permanent
BadRequest_InvalidOrEmptyTableName Table name is empty or invalid.
For more information about naming conventions, see Entity names.
Permanent
BadRequest_EmptyDatabaseName Database name is empty. Permanent
BadRequest_EmptyMappingReference Some formats should get ingestion mapping to be ingested and the mapping reference is empty.
For more information about mapping, see Data Mapping.
Permanent
Download_BadRequest Failed to download source from Azure Storage because of bad request. Permanent
BadRequest_MissingMappingtFailure Avro and Json formats must be ingested with ingestionMapping or ingestionMappingReference parameter. Permanent
Stream_NoDataToIngest Found no data to ingest.
For data in JSON format, this error may indicate that the JSON format was invalid.
Permanent
Stream_DynamicPropertyBagTooLarge The data contains too large values in a dynamic column. HRESULT: 0x80DA000E Permanent
General_BadRequest Bad request. Permanent
BadRequest_CorruptedMessage Message is corrupted. Permanent
BadRequest_SyntaxError Request syntax error. Permanent
BadRequest_ZeroRetentionPolicyWithNoUpdatePolicy Table has zero retention policy and isn't the source table for any update policy. Permanent
BadRequest_CreationTimeEarlierThanSoftDeletePeriod Creation time that was specified for ingestion, isn't within the SoftDeletePeriod.
For more information about SoftDeletePeriod, see The policy object.
Permanent
BadRequest_NotSupported Request not supported. Permanent
Download_SourceNotFound Failed to download source from Azure Storage. Source not found. Permanent
BadRequest_EntityNameIsNotValid Entity name isn't valid.
For more information about naming conventions, see Entity names.
Permanent
BadRequest_MalformedIngestionProperty Ingestion property is malformed. Permanent
BadRequest_IngestionPropertyNotSupportedInThisContext Ingestion property isn't supported in this context. Permanent
BadRequest_NonMultiDatabaseDataConnection Event contains the 'Database' property that routes ingested data to a different database than the target database configured in the data connection's settings. However, since the connection isn't set to allow routing to multiple databases, dynamic database routing isn't allowed. Permanent
BadRequest_InvalidBlobUri Blob URI is invalid. Permanent
BadRequest_DataCapacityLimitReached Storage account has reached its data capacity limit. Permanent
BadRequest_InvalidManagedIdentity Managed Identity either doesn't exist or doesn't have the required permissions. Permanent

Category: DataAccessNotAuthorized

Error message Description Permanent/Transient
Download_AccessConditionNotSatisfied Failed to download source from Azure storage. Access condition not satisfied. Permanent
Download_Forbidden Failed to download source from Azure storage. Access forbidden. Permanent
Download_AccountNotFound Failed to download source from Azure storage. Account not found. Permanent
BadRequest_TableAccessDenied Access to table is denied.
For more information, see role-based access control.
Permanent
BadRequest_DatabaseAccessDenied Access to database is denied.
For more information, see role-based access control.
Permanent
BadRequest_InvalidAuthentication Authentication to data isn't valid. Permanent

Category: DownloadFailed

Error message Description Permanent/Transient
Download_NotTransient Failed to download source from Azure storage. Not transient error occurred Permanent
Download_UnknownError Failed to download source from Azure storage. Unknown error occurred Transient
Download_TransientNameResolutionFailure Failed to download source from Azure storage. Transient storage account name resolution failure occurred Transient

Category: EntityNotFound

Error message Description Permanent/Transient
BadRequest_MappingReferenceWasNotFound Mapping reference wasn't found. Permanent
BadRequest_DatabaseNotExist Database doesn't exist. Permanent
BadRequest_TableNotExist Table doesn't exist. Permanent
BadRequest_EntityNotFound The entity (such as mapping, database, or table) wasn't found. Permanent

Category: FileTooLarge

Error message Description Permanent/Transient
Stream_InputStreamTooLarge The total size of the input data or a single field in the data is too large. HRESULT: 0x80DA0009
For more information about the size limit for this type of ingestion, see The string data type.
Permanent
BadRequest_FileTooLarge Blob size has exceeded the size limit allowed for ingestion. Permanent

Category: InternalServiceError

Error message Description Permanent/Transient
General_InternalServerError Internal server error occurred. Transient
General_TransientSchemaMismatch Schema of target table when starting the ingestion doesn't match the schema when committing the ingestion. Transient
Timeout The operation has been aborted because of timeout. Transient
OutOfMemory Ingestion operation ran out of memory. Transient
Schema_PermanentUpdateFailure Failed to update schema permanently. Permanent

Category: UpdatePolicyFailure

Error message Description Permanent/Transient
UpdatePolicy_QuerySchemaDoesNotMatchTableSchema Failed to invoke update policy. Query schema doesn't match table schema. Permanent
UpdatePolicy_FailedDescendantTransaction Failed to invoke update policy. Failed descendant transactional update policy. Transient
UpdatePolicy_IngestionError Failed to invoke update policy. Ingestion Error occurred.
The error is reported on the source table of the update policy.
Transient
UpdatePolicy_UnknownError Failed to invoke update policy. Unknown error occurred.
The error is reported on the target table of update policy.
Transient
UpdatePolicy_Cyclic_Update_Not_Allowed Failed to invoke update policy. Cyclic update isn't allowed. Permanent
UpdatePolicy_BadRequest Failed to invoke update policy as a result of a bad request,
for example, a query semantic error.
Permanent

Category: UserAccessNotAuthorized

Error message Description Permanent/Transient
BadRequest_InvalidKustoIdentityToken Invalid Kusto identity token. Permanent
Forbidden Insufficient security permissions to execute request. Permanent

Category: ThrottledOnEngine

Error message Description Permanent/Transient
General_ThrottledIngestion Throttled ingestion. Transient

Category: RetryAttemptsExceeded

Error message Description Permanent/Transient
General_RetryAttemptsExceeded Operation has exceeded the retry attempts limit or timespan limit following a recurring transient error. Permanent

Category: BlobAlreadyReceived

Error message Description Permanent/Transient
BlobAlreadyReceived_BlobAlreadyFoundInBatch Detected the same blob in the same specific batch for ingestion. In this case, only one copy of the blob will be used for ingestion. Many errors of this type may indicate that the ingestion configuration is suboptimal. For example, defining two Event Grid data connections on the same storage. Permanent

Category: Unknown

Error message Description Permanent/Transient
Unknown Unknown error occurred. Transient