Behavior of subscription batch session

[Georgios Diamantopoulos]

Hi!

Could someone kindly elaborate on the behavior of the subscription batch session vs a regular one?

I am opening a session from the batch object to process each item so I can call SaveChanges and isolate changes per item in case of failure.

However, I am seeing a "blittable object has been disposed" exception when the batch contains more than one item.

Can you clarify on the differences and best practices?

I guess at the very least I should only dispose after processing the whole batch?

Thanks

Georgios

[Igal Merhavia]

Hi,

Can you elaborate?

What do you mean by "regular"?

Can you submit a failing test - https://ravendb.net/docs/article-page/4.2/csharp/start/test-driver

Best regards,

Igal

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[Georgios Diamantopoulos]

Is there a difference between store.OpenSession() and subscriptionBatch.OpenSession()?

I am getting the object disposed exception in a subscription that receives multiple items to process vs ones where I have MaxDocsPerBatch = 1

Before I go looking for bugs, is there a reason why this would be happening?

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[Igal Merhavia]

Hi,

I am not familiar with your code so it is really hard to say.

But basically the answer is no.

They are the same.

All we do is to register the documents from the subscription to that session but we use regular session.

Best regards,

Igal

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[Georgios Diamantopoulos]

Thank you - that's what I wanted to know.

I will see if I can reproduce an issue and revert.

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[Oren Eini (Ayende Rahien)]

To clarify, there are actually two important factors with the session for the batch.

a) All the documents that were loaded in the subscription batch are already loaded into it, so you won't make extra calls, it will handle change tracking, etc.

b) The session will use the _same_ node as the subscription source to write the changes. Even if the actual primary for the database is different.

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