Failed transactions

Ross Rick <[email protected]>
Newsgroups gmane.comp.java.prevayler
Message-ID <[email protected]>
If read the previous thread correctly...   a transaction is journaled  
to the disk prior to execution on the model.

If the transaction fails, does the journaled transaction always get  
removed from disk?   It would appear that the transaction is removed  
from disk under normal circumstances, but under catastrophic failure,  
it's less clear.     In fact, I doubt that it is entirely possible to  
ensure any such thing.   How do the rest of you handle this?   When  
you come back up your system will attempt the transaction again, even  
if it works, that is not the expected state of the system.   The  
expected state is the state just prior to attempting the bad  
transaction.

How am I doing on the understanding here?   I appreciate everyone's  
help very much.


R

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