In a sharded database architecture, how can query performance be optimized to minimize cross-shard queries?
- By using a well-defined shard key that distributes data evenly, routing queries to specific shards based on the shard key, avoiding unbounded queries that touch all shards, and using secondary indexes efficiently.
- Cross-shard queries are inevitable and cannot be minimized in a sharded database architecture.
- Query performance in sharded databases cannot be optimized.
- By disabling sharding for specific collections to prevent cross-shard queries.
In a sharded database, optimizing query performance involves selecting an appropriate shard key, routing queries effectively, and avoiding operations that require querying all shards, thus reducing the impact of cross-shard queries.
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