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  1. WiredTiger
  2. WT-7293

Validate a window of history that spans 24 hours

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    Details

    • Type: Task
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: 5.1 Required
    • Component/s: None
    • Labels:
      None
    • Story Points:
      13

      Description

      One of the goals of durable history was to enable MongoDB to sustain a "normal" workload, while running a point-in-time scan for 24 hours.

      We should craft a test against MongoDB that does that and run it to ensure we have met the goal.

      The workload should:

      • Populate a database with 5 collections, in the order of 50GB of data spread across those collections.
      • Sustain a rate of new inserts and an equivalent rate of deletes. Update existing documents. The rate of these operations should remain within the capacity of the provisioned system. I recommend 100 inserts/deletes per second, and 100 updates.
      • Run the test on a 3 node replica set.
      • Update the MongoDB configuration settings to allow for a point-in-time scan that runs for a day (talk to Alex Cameron to find out the options needed to do that).
      • Implement a scan query that runs for a day, it should be rate limited, and cycle through reading the dataset. Probably at ~10 operations/second.

      Talk to Brian Lane about how to determine whether the workload is a success, but my recommendation is to check for stable throughput at the expected rate, along with no throughput stalls.

        Attachments

        1. ftdc.1250.tgz
          2.85 MB
        2. ftdc.2021-05-24.tgz
          18.27 MB
        3. ftdc.2500.tgz
          2.96 MB
        4. FTDC.2500x24.notxn.tgz
          47.22 MB
        5. FTDC.2500x24.tgz
          53.96 MB
        6. ftdc.5000.tgz
          4.21 MB
        7. FTDC.Screenshot.2021-05-24.png
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        8. image.jpeg
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        9. Insert.5min.compare.jpg
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        10. Insert.5minavg.jpg
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        11. Read.10secavg.jpg
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        12. Read.5min.compare.jpg
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        13. Read.5minavg.jpg
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        14. Screen Shot 2021-05-26 at 10.01.30 am.png
          Screen Shot 2021-05-26 at 10.01.30 am.png
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        15. Screen Shot 2021-06-01 at 7.19.19 PM.png
          Screen Shot 2021-06-01 at 7.19.19 PM.png
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        16. Screen Shot 2021-06-01 at 7.28.35 PM.png
          Screen Shot 2021-06-01 at 7.28.35 PM.png
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        17. Screen Shot 2021-06-02 at 4.21.11 PM.png
          Screen Shot 2021-06-02 at 4.21.11 PM.png
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        18. Update.2021-05-24.gif
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        19. Update.5min.compare.jpg
          Update.5min.compare.jpg
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        20. Update.5minavg.jpg
          Update.5minavg.jpg
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        21. Update.histogram.2021-05-24.gif
          Update.histogram.2021-05-24.gif
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        22. Update.zoom.2021-05-24.gif
          Update.zoom.2021-05-24.gif
          19 kB
        23. ycsb_output_notxn.log
          1.44 MB
        24. ycsb_output_txn.log
          1.45 MB

          Activity

            People

            Assignee:
            keith.smith Keith Smith
            Reporter:
            alexander.gorrod Alexander Gorrod
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              Dates

              Created:
              Updated:
              Resolved: