Anybody seen this messages before in mongodb sharded cluster 4.0.16 mongos during balancing:
2021-10-24T13:26:03.723+0200 I QUERY [conn636] Unable to establish remote cursors - {error: StaleConfig{ ns: "prod.assests", vReceived: Timestamp(1841827, 4), vReceivedEpoch: ObjectId('584af7e7cec9edde8118d5ac'), vWanted: Timestamp(1841826, 1), vWantedEpoch: ObjectId('584af7e7cec9edde8118d5ac') }: version mismatch detected for prod.assests, numActiveRemotes: 0}
2021-10-24T13:26:03.723+0200 I QUERY [conn768] Unable to establish remote cursors - {error: StaleConfig{ ns: "prod.assests", vReceived: Timestamp(1841827, 4), vReceivedEpoch: ObjectId('584af7e7cec9edde8118d5ac'), vWanted: Timestamp(1841826, 1), vWantedEpoch: ObjectId('584af7e7cec9edde8118d5ac') }: version mismatch detected for prod.assests, numActiveRemotes: 0}
2021-10-24T13:26:03.723+0200 I QUERY [conn507] Unable to establish remote cursors - {error: StaleConfig{ ns: "prod.assests", vReceived: Timestamp(1841827, 4), vReceivedEpoch: ObjectId('584af7e7cec9edde8118d5ac'), vWanted: Timestamp(1841826, 1), vWantedEpoch: ObjectId('584af7e7cec9edde8118d5ac') }: version mismatch detected for prod.assests, numActiveRemotes: 4}
This messages appear only during balancing in a 5x shards (1TB on ssd each) cluster in all mongoses... Also messages appear only during the mentioned collection balancing , other collections balance with no such messages in same cluster...
The questions:
1.Any advice will be highly appreciated on why this messages appear?
2.What is the meaning of this message, do I need to worry about ?
- Is there possible fix?
Balancing seems working correctly ...
Customers not complaining , queries to cluster working correctly ...
RangeDeleter working correctly ....
There is no network or storage resources issues ...
The load is minimal during the time of balancing ...