Details
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Bug
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Resolution: Won't Fix
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Major - P3
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None
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None
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None
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None
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Storage Execution
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ALL
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(copied to CRM)
Description
MongoDB 4.2 updated the mongo shell helper methods for createIndex(es) in SERVER-39760 adding a third parameter for commitQuorum.
Though the option to createIndexes wasn't added/documented until 4.4, according to SERVER-47193 the createIndexes command should accept commitQuorum as a no-op however it doesn't appear to work:
MongoDB shell version v4.2.20
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connecting to: mongodb://127.0.0.1:27017/?compressors=disabled&gssapiServiceName=mongodb
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MongoDB server version: 4.2.20
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MongoDB Enterprise > db.foo.createIndex({ "bar": 1 }, { background: true }, { name: "baz" });
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{
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"ok" : 0,
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"errmsg" : "Invalid field specified for createIndexes command: commitQuorum",
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"code" : 2,
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"codeName" : "BadValue"
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}
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As 4.2 users would only encounter this if they accidentally passed 3 arguments to createIndexes the workaround is to fix their command:
MongoDB Enterprise > db.foo.createIndex({ "bar": 1 }, { background: true, name: "baz" });
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{
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"createdCollectionAutomatically" : false,
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"numIndexesBefore" : 1,
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"numIndexesAfter" : 2,
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"ok" : 1
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}
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Tested on 4.2.20-ent.