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Error Messages

  • reference
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    The standardized error codes returned by the Couchbase .NET SDK, from cloud connection to sub-document.

    All exceptions derive from a common base Couchbase exception. Exceptions (errors) are broken into different classifications:

    • Shared Exceptions — exceptions or errors thrown or returned by any service.

    • Specific Exceptions — exceptions or errors thrown by a service and specific to the service that threw or returned them.

    • Internal Exceptions — exceptions intended to be handled internally by the SDK and not exposed to the application.

    The base exception, CouchbaseException, has two properties — an ErrorContext and an optional Cause. The ErrorContext provides extensive debugging information in JSON format.

    Below are the exceptions, categorised by service.

    Shared Error Definitions

    ID Range: 1-99

    # 1 Timeout

    Raised when a request cannot be completed until the user-defined timeout fires.

    Note, this is a base class for #13 and #14 (Ambiguous and Unambiguous).

    # 2 RequestCanceled

    Raised when a request is cancelled and cannot be resolved in a non-ambiguous way. Most likely the request is in-flight on the socket and the socket gets closed.

    # 3 InvalidArgument

    Raised when it is unambiguously determined that the error was caused because of invalid arguments from the user. Usually only thrown directly when doing request arg validation on KV and sub-doc. Also commonly used as a parent class for many service-specific exceptions (see below).

    # 4 ServiceNotAvailable

    Raised when it can be determined from the config unambiguously that a given service is not available. I.e. no query node in the config, or a memcached bucket is accessed and views or queries should be performed.

    # 5 InternalServerFailure

    Raised when:

    • Query: Error range 5xxx.

    • Analytics: Error range 25xxx.

    • KV: error code ERR_INTERNAL (0x84).

    • Search: HTTP 500.

    # 6 AuthenticationFailure

    Raised when:

    • Query: Error range 10xxx.

    • Analytics: Error range 20xxx.

    • View: HTTP status 401.

    • KV: error code ERR_ACCESS (0x24), ERR_AUTH_ERROR (0x20), AUTH_STALE (0x1f).

    • Search: HTTP status 401, 403.

    # 7 TemporaryFailure

    Raised when:

    • Analytics: Errors: 23000, 23003.

    • KV: Error code ERR_TMPFAIL (0x86), ERR_BUSY (0x85) ERR_OUT_OF_MEMORY (0x82), ERR_NOT_INITIALIZED (0x25).

    # 8 ParsingFailure

    Raised when:

    # 9 CasMismatch

    Raised when:

    • KV: ERR_EXISTS (0x02) when replace or remove with CAS.

    • Query: code 12009.

    # 10 BucketNotFound

    Raised when a request is made but the current bucket is not found.

    # 11 CollectionNotFound

    Raised when a request is made but the current collection (including scope) is not found.

    # 12 UnsupportedOperation

    Raised when:

    • KV: 0x81 (unknown command), 0x83 (not supported).

    # 13 AmbiguousTimeout

    Raised when a timeout occurs and we aren’t sure if the underlying operation has completed. This normally occurs because we sent the request to the server successfully, but timed out waiting for the response. Note that idempotent operations should never return this, as they do not have ambiguity.

    # 14 UnambiguousTimeout

    Raised when a timeout occurs and we are confident that the operation could not have succeeded. This normally would occur because we received confident failures from the server, or never managed to successfully dispatch the operation.

    # 15 FeatureNotAvailable

    Raised when a feature which is not available was used.

    # 16 ScopeNotFound

    Raised when a management API attempts to target a scope which does not exist.

    # 17 IndexNotFound

    Raised when:

    • Query:

    • Analytics: rised when 24047 raised.

    • Search: Http status code 400 AND text contains "index not found".

    # 18 IndexExists

    • Query: Raised when

      • Code 5000 AND message contains Index .+ already exist

      • Code 4300 AND message contains index .+ already exist

    • Analytics: Raised when 24048 raised.

    # 19 EncodingFailure

    Raised when encoding of a user object failed while trying to write it to the cluster.

    # 20 DecodingFailure

    Raised when decoding of the data into the user object failed.

    KeyValue Error Definitions

    ID Range 100 - 199

    # 101 DocumentNotFound

    Raised when the document requested was not found on the server — KV Code 0x01.

    # 102 DocumentUnretrievable

    Raised when in getAnyReplica, the getAllReplicas returns an empty stream because all the individual errors are dropped (i.e. all returned a DocumentNotFound).

    # 103 DocumentLocked

    Raised when the document requested was locked; KV Code 0x09.

    # 104 ValueTooLarge

    Raised when the value that was sent was too large to store (typically > 20MB); KV Code 0x03.

    # 105 DocumentExists

    Raised when an operation which relies on the document not existing fails because the document existed; KV Code 0x02.

    # 107 DurabilityLevelNotAvailable

    Raised when the specified durability level is invalid; KV Code 0xa0.

    # 108 DurabilityImpossible

    Raised when the specified durability requirements are not currently possible (for example, there are an insufficient number of replicas online); KV Code 0xa1.

    # 109 DurabilityAmbiguous

    Raised when A sync-write has not completed in the specified time and has an ambiguous result - it may have succeeded or failed, but the final result is not yet known. A SEQNO OBSERVE operation is performed and the vbucket UUID changes during polling. KV Code 0xa3

    # 110 DurableWriteInProgress

    Raised when A durable write is attempted against a key which already has a pending durable write. KV Code 0xa2

    # 111 DurableWriteReCommitInProgress

    Raised when The server is currently working to synchronize all replicas for previously performed durable operations (typically occurs after a rebalance). KV Code 0xa4

    # 113 PathNotFound

    Raised when the path provided for a sub-document operation was not found; KV Code 0xc0.

    # 114 PathMismatch

    The path provided for a sub-document operation did not match the actual structure of the document; KV Code 0xc1.

    # 115 PathInvalid

    Raised when the path provided for a sub-document operation was not syntactically correct; KV Code 0xc2.

    # 116 PathTooBig

    Raised when the path provided for a sub-document operation is too long, or contains too many independent components; KV Code 0xc3.

    # 117 PathTooDeep

    Raised when the document contains too many levels to parse; KV Code 0xc4.

    # 118 ValueTooDeep

    Raised when the value provided, if inserted into the document, would cause the document to become too deep for the server to accept; KV Code 0xca.

    # 119 ValueInvalid

    Raised when the value provided for a sub-document operation would invalidate the JSON structure of the document if inserted as requested; KV Code 0xc5.

    # 120 DocumentNotJson

    Raised when a Sub-Document operation is performed on a non-JSON document; KV Code 0xc6.

    # 121 NumberTooBig

    Raised when the existing number is outside the valid range for arithmetic operations; KV Code 0xc7.

    # 122 DeltaInvalid

    Raised when the delta value specified for an operation is too large; KV Code 0xc8.

    # 123 PathExists

    Raised when a sub-document operation which relies on a path not existing encountered a path which exists; KV Code 0xc9.

    # 124 XattrUnknownMacro

    Raised when a macro was used which the server did not understand; KV Code: 0xd0.

    # 126 XattrInvalidKeyCombo

    Raised when a Sub-Document operation attempts to access multiple xattrs in one operation; KV Code: 0xcf.

    # 127 XattrUnknownVirtualAttribute

    Raised when a sub-document operation attempts to access a virtual attribute; KV Code: 0xd1.

    # 128 XattrCannotModifyVirtualAttribute

    Raised when a Sub-Document operation attempts to modify a virtual attribute; KV Code: 0xd2.

    # 130 XattrNoAccess

    Raised when the user does not have permission to access the attribute. Occurs when the user attempts to read or write a system attribute (name starts with underscore) but does not have the SystemXattrRead / SystemXattrWrite permission. KV Code: 0x24.

    Query Error Definitions

    ID Range 200 - 299

    # 201 PlanningFailure

    Query: Raised when code range 4xxx other than those explicitly covered.

    # 202 IndexFailure

    Query: Raised when code range 12xxx and 14xxx raised (other than 12004 and 12016).

    # 203 PreparedStatementFailure

    Query: Raised when codes 4040, 4050, 4060, 4070, 4080, 4090.

    Analytics Error Definitions

    ID Range 300 - 399

    # 301 CompilationFailure

    Raised when error range 24xxx (excluded are specific codes in the errors below).

    # 302 JobQueueFull

    Raised when error code 23007.

    # 303 DatasetNotFound

    Raised when error codes 24044, 24045, 24025.

    # 304 DataverseNotFound

    Raised when error code 24034.

    # 305 DatasetExists

    Raised when 24040.

    # 306 DataverseExists

    Raised when 24039.

    # 307 LinkNotFound

    Raised when 24006.

    Search Error Definition

    ID Range 400 - 499

    There are no specific errors for Search; see the Shared Error Definitions section for errors that apply to Search.

    View Error Definitions

    ID Range 500 - 599

    # 501 ViewNotFound

    Raised when Http status code 404 — reason or error contains “not_found”.

    # 502 DesignDocumentNotFound

    Raised on the Management APIs only when:

    • Getting a design document;

    • Dropping a design document;

    • And the server returns 404.

    Management API Error Definitions

    ID Range 600 - 699

    # 601 CollectionExists

    Raised from the collection management API.

    # 602 ScopeExists

    Raised from the collection management API.

    # 603 UserNotFound

    Raised from the user management API.

    # 604 GroupNotFound

    Raised from the user management API.

    # 605 BucketExists

    Raised from the bucket management API.

    # 606 UserExists

    Raised from the user management API.

    # 607 BucketNotFlushable

    Raised from the bucket management API.

    Field-Level Encryption Error Definitions

    ID Range 700 - 799

    # 700 CryptoException

    Generic cryptography failure. Inherits from CouchbaseException (=== # 0). Parent Type for all other Field-Level Encryption errors.

    # 701 EncryptionFailure

    Raised by CryptoManager.encrypt() when encryption fails for any reason. Should have one of the other Field-Level Encryption errors as a cause.

    # 702 DecryptionFailure

    Raised by CryptoManager.decrypt() when decryption fails for any reason. Should have one of the other Field-Level Encryption errors as a cause.

    # 703 CryptoKeyNotFound

    Raised when a crypto operation fails because a required key is missing.

    # 704 InvalidCryptoKey

    Raised by an encrypter or decrypter when the key does not meet expectations (for example, if the key is the wrong size).

    # 705 DecrypterNotFound

    Raised when a message cannot be decrypted because there is no decrypter registered for the algorithm.

    # 706 EncrypterNotFound

    Raised when a message cannot be encrypted because there is no encrypter registered under the requested alias.

    # 707 InvalidCiphertext

    Raised when decryption fails due to malformed input, integrity check failure, etc.

    Connecting to Cloud

    Although the SDK and client application should be located in the same LAN-like environment (or cloud availability zone), and this is the only network configuration supported, we recognise that this set-up may not be possible during development. In particular, you may be developing against Couchbase Capella from a laptop in a small or home office, where DNS-SRV may cause problems.

    In order for your application to connect to your cloud, Capella creates a special kind of DNS record, called a Service record, or DNS-SRV record. DNS SRV records are widely supported and used frequently in systems like XMPP, and Kubernetes services. Occasionally, some DNS providers can run into issues with large DNS SRV records. This can manifest as a host not found issue. The actual problem is (a typically older) DNS server that cannot handle large responses which converts the error to host not found. This has frequently been observed when working from home with a service provider router that embeds a caching DNS Server.

    Below is a list of log messages that you may see if you hit DNS SRV issues. These examples have been created in the circumstance that the SRV record is too long for the DNS provider to handle, and are included here so that they are findable by search, and you can then go to our cloud connection troubleshooting page.

    2020-06-24T11:30:51.0566120+01:00  [INF] Error trying to retrieve DNS SRV entries. (addddf06)
DnsClient.DnsResponseException: Query 11133 => _couchbases._tcp.8676842d-4e8b-4c5b-a44f-e0886f8c0bc1.dp.cloud.couchbase.com IN SRV on 192.168.1.254:53 timed out or is a transient error.
 ---> System.OperationCanceledException: The operation was canceled.
  at System.Threading.Tasks.TaskExtensions.WithCancellation[T](Task`1 task, CancellationToken cancellationToken, Action onCancel)
   at DnsClient.LookupClient.ResolveQueryAsync(IReadOnlyList`1 servers, DnsQuerySettings settings, DnsMessageHandler handler, DnsRequestMessage request, LookupClientAudit audit, CancellationToken cancellationToken)
   --- End of inner exception stack trace ---
  at DnsClient.LookupClient.ResolveQueryAsync(IReadOnlyList`1 servers, DnsQuerySettings settings, DnsMessageHandler handler, DnsRequestMessage request, LookupClientAudit audit, CancellationToken cancellationToken)
   at DnsClient.LookupClient.QueryInternalAsync(DnsQuestion question, DnsQuerySettings queryOptions, IReadOnlyCollection`1 servers, CancellationToken cancellationToken)
   at Couchbase.DnsClientDnsResolver.GetDnsSrvEntriesAsync(Uri bootstrapUri, CancellationToken cancellationToken)
   at Couchbase.Core.ClusterContext.BootstrapGlobalAsync()

    Further Reading