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  1. Core Server
  2. SERVER-33260

Log more helpful messages for featureCompatibilityVersion-related IncompatibleServerVersion errors

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    • Icon: Task Task
    • Resolution: Fixed
    • Icon: Major - P3 Major - P3
    • 3.7.3
    • None
    • Upgrade/Downgrade
    • Fully Compatible
    • Storage NYC 2018-03-12

    Description

      When a mongos/mongod cannot connect to another node due to incompatible wireVersion that is intentional due to featureCompatibilityVersion, we log a generic error message like “remote host has incompatible wire version: IncompatibleServerVersion: Server min and max wire version are incompatible (6,6) with client min wire version (5,5)”. One idea to make this error message more informative is to provide a dochub link to the upgrade/downgrade documentation in case a user encounters it due to failing to upgrade one of their binaries.

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            xiangyu.yao@mongodb.com Xiangyu Yao (Inactive)
            maria.vankeulen@mongodb.com Maria van Keulen
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