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Binary status codes

Every status fastcached emits in the binary response header.

Hex Name Meaning
0x00 Ok Success
0x01 KeyNotFound The key does not exist
0x02 KeyExists The key exists, but the operation required it absent (or CAS mismatch)
0x03 ValueTooLarge The value exceeded the configured max_item_size
0x04 InvalidArguments The request was malformed
0x05 ItemNotStored The store failed (precondition)
0x06 IncrOnNonNumeric Increment / Decrement on a non-numeric value
0x20 AuthError SASL not supported (every SASL opcode returns this)
0x81 UnknownCommand Unrecognised opcode
0x82 OutOfMemory Allocation failure
0x83 NotSupported Reserved — defined for parity, not emitted yet
0x84 InternalError Reserved — defined for parity, not emitted yet
0x85 Busy Reserved — defined for parity, not emitted yet
0x86 TemporaryFailure Reserved — defined for parity, not emitted yet