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  1. Core Server
  2. SERVER-31634

FeatureCompatibilityVersion::setIfCleanStartup() should store FCV=3.4 for shardsvrs

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Details

    • Task
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 3.6.0-rc2
    • Querying
    • None
    • Fully Compatible
    • Query 2017-11-13
    • 50

    Description

      A standalone or replica set started with shardsvr currently does not write a featureCompatibilityVersion on clean startup. It should write a featureCompatibilityVersion 3.4 document. This is safe, since there will be no 3.6 features to strip out if the shard is added to an FCV=3.4 cluster. This is important, because in 3.6, we require the featureCompatibilityVersion document to be present.

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              tess.avitabile@mongodb.com Tess Avitabile (Inactive)
              tess.avitabile@mongodb.com Tess Avitabile (Inactive)
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