Ensure checkpoint order is strictly increasing across nodes in disagg

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    • Type: Task
    • Resolution: Unresolved
    • Priority: Major - P3
    • None
    • Affects Version/s: None
    • Component/s: Checkpoints
    • Security Level: Public (Available to anyone on the web)
    • Storage Engines - Persistence
    • 3,288.364
    • SE Persistence backlog, SE Persistence - 2026-04-24
    • None

      The checkpoint order variable is guaranteed to be strictly increasing if all the checkpoints are written by the same node. However, in the case of disagg, nodes can step-up and step-down and writing to the same shared storage (SLS). We need to ensure the checkpoint orders are also strictly increasing if the checkpoints are written by different nodes.

        1. filter_o.txt
          46 kB

            Assignee:
            Albert Song
            Reporter:
            Chenhao Qu
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              Created:
              Updated: