Exception on long running migration when using TransactionKind.CommitAll about evolve

[danielforwardcamp]

This is happening to me,
It seems that the problem is that the default timeout for the ambient transaction is 60 seconds. So long duration migrations with RollbackAll or CommitAll will fail.

The solution should be easy, add a new property "AmbientTransactionTimeout" in the Evolve class and pass it to the TransactionScope constructor.

Could you take a look at it? This is a feature we would love to see working properly.

[danielforwardcamp]

I created a PR
#293

[Usergitbit]

I created a PR #293

This will only fix the issue if the timeout is under 10m (the max transaction default timeout). If you need it higher than that then the reflection hack is needed. If this were to be done in the library I think the max timeout could be modified before the migrations run then set back to the initial value.

[danielforwardcamp]

I created a PR #293

This will only fix the issue if the timeout is under 10m (the max transaction default timeout). If you need it higher than that then the reflection hack is needed. If this were to be done in the library I think the max timeout could be modified before the migrations run then set back to the initial value.

I just pushed a commit with the change. Check out if you can.