Akka.Persistence.MongoDb version update causes NULLRef issues

[merthamurcu]

I am trying to update from netstandard2.0 to net6.0, we were using akka 1.4.5 and trying to update to 1.4.31

some actors throwing nullref due to missing "Ordering" field in the "EventJournal" entries.
we have too many records in the mongoDB to add ordering to each of them realistically,
is there any work around to fix this error and upgrade my projects safely?

I believe it is introduced in this commit
akkadotnet/Akka.Persistence.MongoDB@bb0f4c6
and line 392 where it throws the nullref

thanks in advance!

[Aaronontheweb]

Thanks for letting us know @merthamurcu - we'll take a look at this.

[Arkatufus]

The Ordering and Tags field is added in this PR: akkadotnet/Akka.Persistence.MongoDB@e72b425

I think there's no way to upgrade without converting the old data structure to the new one

[merthamurcu]

I check that in first days of testing. people adding new fields to payload objects, they now causing "No matching creator found", adding BsonDefaultValueAttribute solves some cases but can't give default to such as guid because attribute just doesn't suitable to that, can't even convert from string to guid I guess. so I think I manage to work it with IMemberMapConvention and set default values to each member, still early to say if its working. I can't be the first one who faces these issues?

[Aaronontheweb]

We worked with other long-time Akka.Persistence.MongoDb customers at the time these changes were made (i.e. users who've been using it for 5+ years) and haven't heard of any problems like this before. We definitely want to get to the bottom of it and help you though.

[merthamurcu]

I would love to get some help from your expertise thb, do you have a discord channel etc that I can go into detail without keeping here busy?

[Aaronontheweb]

You can use the Gitter chat room: https://gitter.im/akkadotnet/akka.net but the best way to get some help from us is probably https://petabridge.com/contact/

[merthamurcu]

sent you an email to your personal web mail, thanks for the interest