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  1. Drivers
  2. DRIVERS-1943

Make maxConnecting configurable

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Details

    • Needed
    • Hide

      Implement the new maxConnecting connection pool and connection string option as specified in this commit.

      Show
      Implement the new maxConnecting connection pool and connection string option as specified in this commit .

    Description

      Summary

      The CMAP spec currently requires setting maxConnecting to 2. There are some user scenarios where this setting is not optimal, and degrades application performance.

      Consider allowing users to configure maxConnecting setting.
      Drivers should also provide documentation suggesting the default value of 2 (or other) for minimizing the risk of connection storms.

      Motivation

      Who is the affected end user?

      Customers with workloads for which maxConnecting=2 causes degraded performance (see linked tickets).

      How does this affect the end user?

      Some users experience performance degradation, which is supposed to be addressed by this setting.

      How likely is it that this problem or use case will occur?

      Unclear, probably an edge case.

      If the problem does occur, what are the consequences and how severe are they?

      Degraded performance

      Is this issue urgent?

      This prevents some users from upgrading to the latest driver.

      Is this ticket required by a downstream team?

      No

      Is this ticket only for tests?

      No

      Attachments

        Issue Links

          duplicates

          New Feature - A new feature of the product, which has yet to be developed. JAVA-4288 Allow configuration of MAX_CONNECTING on the connection pool after 4.3.x changes

          • Minor - P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          is depended on by

          Bug - A problem which impairs or prevents the functions of the product. CSHARP-3885 [Unconfigurable] connection rate limiter in 2.13.x breaks existing applications

          • Major - P3 - Major loss of function.
          • Closed
          split to

          Task - A task that needs to be done. RUST-1096 Make maxConnecting configurable

          • Minor - P4 - Minor loss of function, or other problem where easy workaround is present.
          • Backlog

          Task - A task that needs to be done. CDRIVER-4218 Make maxConnecting configurable

          • Unknown - Priority not determined yet.
          • Closed

          Task - A task that needs to be done. CSHARP-3952 Make maxConnecting configurable

          • Unknown - Priority not determined yet.
          • Closed

          Task - A task that needs to be done. CXX-2413 Make maxConnecting configurable

          • Unknown - Priority not determined yet.
          • Closed

          Task - A task that needs to be done. GODRIVER-2219 Make maxConnecting configurable

          • Unknown - Priority not determined yet.
          • Closed

          Task - A task that needs to be done. MOTOR-856 Make maxConnecting configurable

          • Unknown - Priority not determined yet.
          • Closed

          Task - A task that needs to be done. NODE-3750 Make maxConnecting configurable

          • Unknown - Priority not determined yet.
          • Closed

          Task - A task that needs to be done. PHPLIB-759 Make maxConnecting configurable

          • Unknown - Priority not determined yet.
          • Closed

          Task - A task that needs to be done. PYTHON-3005 Make maxConnecting configurable

          • Unknown - Priority not determined yet.
          • Closed

          Task - A task that needs to be done. RUBY-2840 Make maxConnecting configurable

          • Unknown - Priority not determined yet.
          • Closed

          Task - A task that needs to be done. SWIFT-1411 Make maxConnecting configurable

          • Unknown - Priority not determined yet.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. JAVA-4390 Make maxConnecting configurable

          • Major - P3 - Major loss of function.
          • Closed
          links to

          Web Link PR

          Activity

            People

              valentin.kovalenko@mongodb.com Valentin Kavalenka
              boris.dogadov@mongodb.com Boris Dogadov
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              Dates

                Created:
                Updated: