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  1. Core Server
  2. SERVER-35138

service_state_machine.cpp should log a backtrace if there's an uncaught exception

    • Type: Icon: Improvement Improvement
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 4.0.7, 4.1.7
    • Affects Version/s: None
    • Component/s: Networking
    • None
    • Fully Compatible
    • v4.0
    • Service Arch 2018-10-22, Service Arch 2018-11-05, Service Arch 2018-11-19, Service Arch 2018-12-03, Service Arch 2018-12-17, Service Arch 2018-12-31, Service Arch 2019-01-14
    • 16

      While the backtrace itself won't be particular helpful in debugging the failure (as the stack has already been unwound) it will make it so the automated tooling to extract relevant log messages can find the uncaught exception message. The only log message that appears is the following:

      [ReplicaSetFixture:job0:secondary2] 2018-05-20T12:58:19.763+0000 E NETWORK  [conn118] Uncaught std::exception: basic_string::_M_create, terminating


      We could likely instead just call std::terminate() inside the catch-block as myTerminate() already logs details about the exception as well as a backtrace of where it was caught.

        1. exception_stack_trace_current.txt
          0.4 kB
        2. exception_stack_trace_new.txt
          40 kB
        3. exception_stack_trace_no_handler.txt
          41 kB

            jonathan.ma@mongodb.com Jonathan Ma
            max.hirschhorn@mongodb.com Max Hirschhorn
            2 Vote for this issue
            13 Start watching this issue