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  1. Core Server
  2. SERVER-59340

Allow to select sync target based on staleness time in Chained Replication

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    • Type: Icon: Improvement Improvement
    • Resolution: Unresolved
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: None
    • Component/s: None
    • Labels:
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    • Replication

      Issue,
      Chained Replication is enabled by default in all supported MongoDB Server releases, and this means that a SECONDARY might select another SECONDARY as a sync target with large replication lag but very low ping time.

      Metadata,

      • MongoDB Server version: v. 4.0.X, v. 4.2.X, v. 4.4.X, v. 5.0.X

      What we need from this SERVER ticket,

      • Can we consider enhancing Chained Replication feature by adding ability to configure sync target based on staleness time?
        • Here is the diagram to describe the proposal,

      Thanks in advance,
      Alexey

        1. 2021-08-13T14-13Z - MongoDB Server Chained Replication (proposal).png
          228 kB
          Alexey Matyushin

            Assignee:
            backlog-server-repl [DO NOT USE] Backlog - Replication Team
            Reporter:
            alexey.matyushin@mongodb.com Alexey Matyushin
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              Created:
              Updated: