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  1. Core Server
  2. SERVER-51342

ShardRegistry should forget connection strings of removed shards

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    • Type: Icon: Improvement Improvement
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 4.9.0
    • Affects Version/s: None
    • Component/s: Sharding
    • Fully Compatible

      Currently the entry for a shard in _latestConnStrings isn't removed when that shard is removed from the cluster. This is harmless in the sense that it will be skipped and not used, but it needlessly wastes memory, and could cause problems if a shard is later re-added with the same replica set name as the removed shard was using. Therefore this entry should be removed when the ShardRegistry notices that the shard has been removed from the cluster.

            Assignee:
            tommaso.tocci@mongodb.com Tommaso Tocci
            Reporter:
            kevin.pulo@mongodb.com Kevin Pulo
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              Created:
              Updated:
              Resolved: