Minor - P4 Description
If you have a sharded cluster with 2.8 mongod shards and a 2.6 mongos, running enablesharding will result in a very confusing message:
Error: command { "enablesharding" : "test" } failed: {
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"code" : 13111,
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"ok" : 0,
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"errmsg" : "exception: error creating initial database config information :: caused by :: field not found, expected type 8"
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}
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It would be nice if there was a way to detect this situation and alert users to the fact that they need to upgrade all their mongos instances before any of their mongod instances.
Attachments
Issue Links
- duplicates
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SERVER-16184 repeated WriteBackListener error on out-of-order upgrade
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- Closed
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- is related to
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- Closed
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