@franck.leveneur thanks for your response if I will use shard-key of gameId that means we wont have our transactions distributed right. as I understand shard-key should be set on high cardinality key’s (e.g our correlationId which is unique per transaction) we have like 100 games. each game can have millions of transactions while other wont. if I use shardkey i mean have an unbalanced cluster or perhaps I missing something?
Thank you,
Idan