Address flakiness in command logging, retryable reads, and retryable writes unified tests for retryable handshake errors

ExportXMLWordPrintableJSON

    • Needed
    • Hide

      Summary of necessary driver changes

      •  

      Commits for syncing spec/prose tests
      (and/or refer to an existing language POC if needed)

      •  

      Context for other referenced/linked tickets

      •  
      Show
      Summary of necessary driver changes   Commits for syncing spec/prose tests (and/or refer to an existing language POC if needed)   Context for other referenced/linked tickets  
    • $i18n.getText("admin.common.words.hide")
      Key Status/Resolution FixVersion
      CDRIVER-6479 Blocked
      CXX-3590 Blocked
      CSHARP-6240 Investigating
      GODRIVER-4164 Blocked
      JAVA-6321 Blocked
      NODE-7867 Blocked
      PYTHON-6122 In Code Review
      PHPLIB-1956 Blocked
      RUBY-3966 Blocked
      RUST-2509 Blocked
      $i18n.getText("admin.common.words.show")
      #scriptField, #scriptField *{ border: 1px solid black; } #scriptField{ border-collapse: collapse; } #scriptField td { text-align: center; /* Center-align text in table cells */ } #scriptField td.key { text-align: left; /* Left-align text in the Key column */ } #scriptField a { text-decoration: none; /* Remove underlines from links */ border: none; /* Remove border from links */ } /* Add green background color to cells with FixVersion */ #scriptField td.hasFixVersion { background-color: #00FF00; /* Green color code */ } #scriptField td.willNotDo { background-color: #FF0000; /* Red color code */ } /* Center-align the first row headers */ #scriptField th { text-align: center; } Key Status/Resolution FixVersion CDRIVER-6479 Blocked CXX-3590 Blocked CSHARP-6240 Investigating GODRIVER-4164 Blocked JAVA-6321 Blocked NODE-7867 Blocked PYTHON-6122 In Code Review PHPLIB-1956 Blocked RUBY-3966 Blocked RUST-2509 Blocked

      Summary

      Unified tests for Retryable Reads & Writes of the form "[command] succeeds after retryable handshake [error type]" intermittently fail the assertion on `ConnectionCheckoutStarted` events (expected 4x, got 3x) in multiple drivers (Node - NODE-6832, Python - PYTHON-5323, and Rust confirmed). We should investigate how to make these tests reliable.

      Motivation

      Who is the affected end user?

      Driver devs

      How does this affect the end user?

      Flaky tests are distracting and can mask true failures.

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

      Very; e.g., weekly in Node

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

      Time is wasted

      Is this issue urgent?

      No

      Is this ticket required by a downstream team?

      No

      Is this ticket only for tests?

      Yes

      Acceptance Criteria

      • Update the retryable reads and writes tests for retryable handshake errors to eliminate flakiness (as tested by the affected drivers: no occurrences in 1000x iterations after the fix)

            Assignee:
            Noah Stapp
            Reporter:
            Daria Pardue
            Noah Stapp Noah Stapp
            Votes:
            0 Vote for this issue
            Watchers:
            1 Start watching this issue

              Created:
              Updated: