Define a new method to query historical placement data on a namespace from a mongos process

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    • Type: Task
    • Resolution: Fixed
    • Priority: Major - P3
    • 6.2.0-rc0
    • Affects Version/s: None
    • Component/s: None
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    • Fully Compatible
    • Sharding EMEA 2022-09-05, Sharding EMEA 2022-09-19, Sharding EMEA 2022-10-03
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    • 3
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      The ShardingCatalogClient interface represents the main API a mongos process may use to access metadata on the config server.

      The objectives of this ticket are:

      • extend such interface to also include the ListOfShards getShardsThatOwnDataForCollAtClusterTime(collName, clusterTime) method
      • implement the new method to access the content of config.placement and config.shards (this other function may serve as a reference for how to send an aggregation to the config server)
      • include unit tests for the method

              Assignee:
              Enrico Golfieri
              Reporter:
              Paolo Polato
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                Created:
                Updated:
                Resolved: