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  1. Core Server
  2. SERVER-74368

Reduce log verbosity for virtual collection queries

    • Type: Icon: Improvement Improvement
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 7.0.0-rc0, 6.3.2
    • Affects Version/s: None
    • Component/s: None
    • Query Execution
    • Fully Compatible
    • v6.3
    • QE 2023-03-20, QE 2023-04-03, QE 2023-04-17

      Queries against virtual collections (e.g. queries that specify named pipes for data transfer) currently result in these log messages:

      {"t":{"$date":"2023-02-20T12:58:48.095-08:00"},"s":"I",  "c":"STORAGE",  "id":20320,   "ctx":"conn3","msg":"createCollection","attr":{"namespace":"test.named_pipe_1","uuidDisposition":"generated","uuid":{"uuid":{"$uuid":"31c6b2ac-3dfc-4965-9738-a484c2ebd43d"}},"options":{"autoIndexId":false}}}
      {"t":{"$date":"2023-02-20T12:58:48.095-08:00"},"s":"I",  "c":"STORAGE",  "id":7005001, "ctx":"conn3","msg":"Named pipe is closed","attr":{"path":"/tmp/named_pipe_1"}}
      {"t":{"$date":"2023-02-20T12:58:48.095-08:00"},"s":"I",  "c":"STORAGE",  "id":7005001, "ctx":"conn3","msg":"Named pipe is closed","attr":{"path":"/tmp/named_pipe_1"}}
      {"t":{"$date":"2023-02-20T12:58:48.095-08:00"},"s":"I",  "c":"STORAGE",  "id":20318,   "ctx":"conn3","msg":"Finishing collection drop","attr":{"namespace":"test.named_pipe_1","uuid":{"uuid":{"$uuid":"31c6b2ac-3dfc-4965-9738-a484c2ebd43d"}}}}
      

      This is a significant amount of logging for a single query, especially because create/dropping of the collection now goes from a log that is only published infrequently in OLTP workloads to being published for every query. To reduce the verbosity here, we should:

      1. Change create/drop collection to be DEBUG level for virtual collections.
      2. Deduplicate the "Named pipe is closed" message so it is only published once.

            Assignee:
            serhii.lysenko@mongodb.com Serhii Lysenko
            Reporter:
            divjot.arora@mongodb.com Divjot Arora (Inactive)
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              Created:
              Updated:
              Resolved: