CODEWITHSUNDEEP
c#ravendb
Yosi
Yosi

Reputation: 2976

RavenDB concurrent put


I started using RavenDB and I am getting concurrency exceptions when I am creating an entity and linking the entity to another entity, for examples:

When creating a new student I am fetching the related class and adding the student to the "students" list. I saw that this storing and adding this relation is my bottleneck in my application.

How I can fix this concurrency problem? or maybe I can do this linking in other way? or update the Class with PatchRequest and then I won't have problems with concurrency?

Upvotes: 0

Views: 181

Answers (1)

Matt Johnson-Pint
Matt Johnson-Pint

Reputation: 241890

You have two options

  1. Retry on concurrency failure
  2. Reduce contention on the Class entity.

Really, you have a many-to-many relationship between students and classes - so you can store the related key on either side of the relationship (or both sides if desired).

If your app works more frequently with classes than students, try putting a list of ClassIds on each student. You can still get back a list of all students in the class via a query.

Aside - I suggest "Course" instead of "Class" to avoid stepping on keywords in c#

Upvotes: 2

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