I wonder why there is no need to complete in sequence?
FIFO = First in first out.
If the resource is limited, people who makes the request first should be
serviced first.
Just like people go restaurant, buying ticket,...etc.
By the way, the sorting is not the point,
even randomly consume an item
On Mar 15, 9:28 am, Iap iap...@gmail.com wrote:
The other suggestion is the transaction. I encountered many exceptions
while putting the step 3.2, 3.3 to a transaction.
Such as nested transaction is not allowed,Cannot operate on different
entity groups,must be an ancestor
Because the
