Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-77828

listIndexes should report expireAfterSeconds as a float

XMLWordPrintableJSON

    • Type: Icon: Bug Bug
    • Resolution: Fixed
    • Priority: Icon: Minor - P4 Minor - P4
    • 7.3.0-rc0
    • Affects Version/s: None
    • Component/s: None
    • None
    • Fully Compatible
    • ALL
    • Execution NAMR Team 2023-07-24, Execution NAMR Team 2023-08-21, Execution NAMR Team 2023-09-04, Execution Team 2023-12-11, Execution Team 2023-12-25, Execution Team 2024-01-08, Execution Team 2024-01-22
    • 135

      Per a conversation with Max just now, it seems chunk migration uses `listIndexes` to fetch index stats, which (again, per Max) reports expireAfterSeconds as an int. This value, though, is internally a floating-point, which can trigger rounding problems.

      This seems to have caused REP-2567, in which the source cluster’s shards built the `x_before_epoch` index with different expireAfterSeconds values.

      That happened because ttl_index_options.js sends a UNIX timestamp. Assumedly that value, these days, is just high enough that rounding errors will happen, where previously they may not have.

            Assignee:
            daotang.yang@mongodb.com Daotang Yang
            Reporter:
            felipe.gasper@mongodb.com Felipe Gasper
            Votes:
            0 Vote for this issue
            Watchers:
            8 Start watching this issue

              Created:
              Updated:
              Resolved: