[Question] What's the reason behind the different consistency level settings for queries?

[suraciii]

I'm new to Cassandra and want to learn why reminder queries are using quorum consistency level but storage queries are using one (according to InitializeOrleansDatabase.cql, what's the reason behind this?

And thanks for providing this cool library

[RuiEusebio]

Hi @suraciii,
The consistency level ONE means only one replica node returns the data.
The consistency level QUORUM means 51% or a majority of replica nodes across all datacenters responds.
In Orleans, Reminders are identical to timers but they are persisted in the database, which is something that executes later after the grain is called, it has other features you can see the documentation link

After that, I think the reason behind this is the guarantee that the Reminder is not lost and runs in any datacenter.