Details
Major - P3 Description
The master branch's role graph update logic has support for the following event on admin.system.roles:
BSON("createIndexes"
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<< "system.roles"
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<< "v"
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<< 2
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<< "name"
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<< "role_1_db_1"
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<< "key"
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<< BSON("role" << 1 << "db" << 1)
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<< "unique"
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<< true)
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{
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We should ensure older stable branches can handle it as well. Without support, nodes may attempt to create a default index on the roles collection and trigger the following error message:
Unsupported modification to roles collection in oplog; restart this process to reenable user-defined roles; OplogOperationUnsupported: Unsupported oplog operation.