2 ms·
Can you elaborate more? Is it not possible to have replication delay due to stale caches?
by josephh 5y ago
Can you elaborate more? Is it not possible to have replication delay due to stale caches?
- bastawhiz 5y agoI'm not aware of a data store which populates its replicas with data from a cache. Surely there are caches within any given data store, but the whole point of a replica is to have the data replicated (for scaling reads, redundancy in case your leader fails). If you're using caches, you're deliberately sending old data to the replicas. I can't think of why you'd do that. I guess you could have replicas of your caches, but I'm referring specifically to data store replicas.