Is there any reason why the IndexingMode is set to Consistent?

[cdemi]

I am referring to:

Orleans.CosmosDB/src/Orleans.Persistence.CosmosDB/CosmosDBGrainStorage.cs

Lines 416 to 419 in 948ef97

	var stateCollection = new ContainerProperties(this._options.Collection, DEFAULT_PARTITION_KEY_PATH);
	stateCollection.IndexingPolicy.IndexingMode = IndexingMode.Consistent;
	stateCollection.IndexingPolicy.IncludedPaths.Add(new IncludedPath { Path = "/*" });
	stateCollection.IndexingPolicy.ExcludedPaths.Add(new ExcludedPath { Path = "/\"State\"/*" });

From my understanding of the code, the Orleans.Persistence.CosmosDB Storage Provider always does point reads (only using ID and Partition Key); so it uses CosmosDB as a KV Store and never queries using the indexed values.

We are trying to optimize our CosmosDB usage and it looks like for indexing CosmosDB charges you extra RU/s. I was wondering if we could just go ahead and turn off indexing and this library would still work correctly.

As far as I can see it would, but I'm wondering if there is any reason that I'm missing

[ReubenBond]

cc @galvesribeiro
I think this should be configurable for the persistence provider, assuming that persistence does not require consistent indexing

[galvesribeiro]

You both are right. That should be configurable.

@cdemi do you mind make a PR making it configurable?