If we shard a collection with one mongos, the mongod will not know about the change until a setShardVersion command comes in. Since other mongoses do not know about the change, they may never send another setShardVersion command if they don't re-establish connections.
This can cause mongoses not to split, if the shard command comes from one mongos which then is not used to insert the data.
- is duplicated by
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SERVER-4219 When a collection is sharded, mongods should be notified by the mongos
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- Closed
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