Enum CanonicalCode

Enum Documentation

enum opentelemetry::trace::CanonicalCode

Values:

enumerator OK

The operation completed successfully.

enumerator CANCELLED

The operation was cancelled (typically by the caller).

enumerator UNKNOWN

Unknown error. An example of where this error may be returned is if a Status value received from another address space belongs to an error-space that is not known in this address space. Also errors raised by APIs that do not return enough error information may be converted to this error.

enumerator INVALID_ARGUMENT

Client specified an invalid argument. Note that this differs from FAILED_PRECONDITION. INVALID_ARGUMENT indicates arguments that are problematic regardless of the state of the system (e.g., a malformed file name).

enumerator DEADLINE_EXCEEDED

Deadline expired before operation could complete. For operations that change the state of the system, this error may be returned even if the operation has completed successfully. For example, a successful response from a server could have been delayed long enough for the deadline to expire.

enumerator NOT_FOUND

Some requested entity (e.g., file or directory) was not found.

enumerator ALREADY_EXISTS

Some entity that we attempted to create (e.g., file or directory) already exists.

enumerator PERMISSION_DENIED

The caller does not have permission to execute the specified operation. PERMISSION_DENIED must not be used for rejections caused by exhausting some resource (use RESOURCE_EXHAUSTED instead for those errors). PERMISSION_DENIED must not be used if the caller cannot be identified (use UNAUTHENTICATED instead for those errors).

enumerator RESOURCE_EXHAUSTED

Some resource has been exhausted, perhaps a per-user quota, or perhaps the entire file system is out of space.

enumerator FAILED_PRECONDITION

Operation was rejected because the system is not in a state required for the operation’s execution. For example, directory to be deleted may be non-empty, an rmdir operation is applied to a non-directory, etc.

A litmus test that may help a service implementor in deciding between FAILED_PRECONDITION, ABORTED, and UNAVAILABLE: (a) Use UNAVAILABLE if the client can retry just the failing call. (b) Use ABORTED if the client should retry at a higher-level (e.g., restarting a read-modify-write sequence). (c) Use FAILED_PRECONDITION if the client should not retry until the system state has been explicitly fixed. E.g., if an “rmdir” fails because the directory is non-empty, FAILED_PRECONDITION should be returned since the client should not retry unless they have first fixed up the directory by deleting files from it.

enumerator ABORTED

The operation was aborted, typically due to a concurrency issue like sequencer check failures, transaction aborts, etc.

See litmus test above for deciding between FAILED_PRECONDITION, ABORTED, and UNAVAILABLE.

enumerator OUT_OF_RANGE

Operation was attempted past the valid range. E.g., seeking or reading past end of file.

Unlike INVALID_ARGUMENT, this error indicates a problem that may be fixed if the system state changes. For example, a 32-bit file system will generate INVALID_ARGUMENT if asked to read at an offset that is not in the range [0,2^32-1], but it will generate OUT_OF_RANGE if asked to read from an offset past the current file size.

There is a fair bit of overlap between FAILED_PRECONDITION and OUT_OF_RANGE. We recommend using OUT_OF_RANGE (the more specific error) when it applies so that callers who are iterating through a space can easily look for an OUT_OF_RANGE error to detect when they are done.

enumerator UNIMPLEMENTED

Operation is not implemented or not supported/enabled in this service.

enumerator INTERNAL

Internal errors. Means some invariants expected by underlying system has been broken. If you see one of these errors, something is very broken.

enumerator UNAVAILABLE

The service is currently unavailable. This is a most likely a transient condition and may be corrected by retrying with a backoff.

See litmus test above for deciding between FAILED_PRECONDITION, ABORTED, and UNAVAILABLE.

enumerator DATA_LOSS

Unrecoverable data loss or corruption.

enumerator UNAUTHENTICATED

The request does not have valid authentication credentials for the operation.