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  1. WiredTiger
  2. WT-7042

large_scale_long_lived and large_scale_model genny workloads potentially faulty

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major - P3
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: 5.0 Required
    • Component/s: None
    • Labels:
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      Description

      While working on PM-1986 Alex Cameron wrote a new workload based on large_scale_long_lived and large_scale_model workloads. I was testing if the workload distributes reads/writes binomially across the _id keyspace and found reads and writes actually do not end up going to WiredTiger.

      The filters we use on _id for reads and updates assume _id to be numeric, whereas the load phase lets _id to be defaulted to it's ObjectID representation. We created WT-7041 to fix this bug in the new workload.

      Having based new workload on large_scale_long_lived and large_scale_model, it is very likely that these workloads are not doing the right thing at all, and doing reads/writes with filters that do not match any documents.

      This ticket is to check if the workloads have been faulty and if yes, fix them. WT-7041 could hint at the possible solution.

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              Assignee:
              backlog-server-storage-engines Backlog - Storage Engines Team
              Reporter:
              sulabh.mahajan Sulabh Mahajan
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                Created:
                Updated: