- All Implemented Interfaces:
Serializable
public class TransactionCommitAmbiguousException
extends TransactionFailedException
The transaction expired at the point of trying to commit it. It is ambiguous whether the transaction has committed
or not. Actors may be able to see the content of this transaction.
This error is result of inevitable and unavoidable edge cases when working with unreliable networks. For example,
consider an ordinary mutation being made over the network to any database. The mutation could succeed on the
database-side, and then just before the result is returned to the client, the network connection drops. The client
cannot receive the success result and will timeout - it is ambiguous to it whether the mutation succeeded or not.
The transactions layer will work to resolve the ambiguity up until the transaction expires, but if unable to resolve
it in that time, it is forced to raise this error. The transaction may or may not have been successful, and
error-handling of this is highly application-dependent.
An asynchronous cleanup process will try to complete the transaction: roll it back if it didn't commit, roll it
forwards if it did.
- See Also:
- Serialized Form