We currently set ShardingTaskExecutorPoolReplicaSetMatching to "matchPrimaryNode" by default for both MongoD and MongoS (see here). However, the "matchPrimaryNode" behavior can be problematic for topologies when multiple shardsvrs experience a rapid influx of cross-shard operations. We should disable this behavior on MongoD nodes but not MongoS nodes.
Make ShardingTaskExecutorPoolReplicaSetMatching default to disabled for MongoD
- Assignee:
- George Wangensteen
- Reporter:
- Benjamin Caimano (Inactive)
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