Purge instance history about durabletask-dotnet HOT 5 OPEN

Isn't what you are looking for simply injecting the DurableTaskClient and then calling PurgeInstanceAsync, PurgeInstancesAsyncor PurgeAllInstancesAsync like this:

[Function("TerminateSomething")]
public async Task<HttpResponseData> Run([DurableClient] DurableTaskClient client) 
{
     await client.PurgeInstanceAsync("SomeInstanceId");
}

It is what we are using to clean-up, and it works in general, except for the yet to be triaged problem mentioned here #143 (comment)

from durabletask-dotnet.

Isn't what you are looking for simply injecting the DurableTaskClient and then calling PurgeInstanceAsync, PurgeInstancesAsyncor PurgeAllInstancesAsync like this:

[Function("TerminateSomething")]
public async Task<HttpResponseData> Run([DurableClient] DurableTaskClient client) 
{
     await client.PurgeInstanceAsync("SomeInstanceId");
}

It is what we are using to clean-up, and it works in general, except for the yet to be triaged problem mentioned here #143 (comment)

Won't that purge the instance table and not history table (or perhaps both)? What I want to do is remove history but not instances.

from durabletask-dotnet.

From what I can gather, it does both. There are no other operations.

from durabletask-dotnet.

@viktoraandersson: can you tell me a bit more about your use case? Why are you trying to delete only the instance table and not the history table.

Also, I believe the purgeInstanceAsync API in the isolated SDK has the same side effects as the in-process SDK. I don't believe we've changed the semantics here.

from durabletask-dotnet.

@viktoraandersson: can you tell me a bit more about your use case? Why are you trying to delete only the instance table and not the history table.

Also, I believe the purgeInstanceAsync API in the isolated SDK has the same side effects as the in-process SDK. I don't believe we've changed the semantics here.

Sure! It's the other way around though, I want to delete history and not instance table.

The use case:
I have IOT devices which gets setup by the durable function. Each device has a unique ID, and I use this ID as instance ID for the durable function. This way I can make sure only one setup is running per device. I can use DurableTaskClient.GetInstancesAsync to get some metadata and e.g. determine if someone is already running setup for this device.

Because of this I want to keep the data in the instance table. I want to purge instance history though as this can otherwise grow infinitely.

Am I misunderstanding something perhaps? Which tables are purged with IDurableOrchestrationClient .PurgeInstanceHistoryAsync and which are purged with DurableTaskClient.PurgeInstanceAsync? Or am I abusing the use of the instance ID in my use case somehow?

from durabletask-dotnet.