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  1. Node.js Driver
  2. NODE-4854

High rate of reconnections due to Min Pool Size Check

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      1. What would you like to communicate to the user about this feature?
      2. Would you like the user to see examples of the syntax and/or executable code and its output?
      3. Which versions of the driver/connector does this apply to?

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      1. What would you like to communicate to the user about this feature? 2. Would you like the user to see examples of the syntax and/or executable code and its output? 3. Which versions of the driver/connector does this apply to?

      What problem are you facing?

      High rate of reconnections

       

      What driver and relevant dependency versions are you using?

      NodeJS v18.12.1

      MongoDB NodeJS Driver: 4.12.1

      Steps to reproduce?

      Connection string = mongodb://mongo.common?appName=alexa_ap&family=4&connectTimeoutMS=2500&socketTimeoutMS=5000&maxPoolSize=100&minPoolSize=50&w=0&readPreference=secondaryPreferred&journal=false&noDelay=true&useUnifiedTopology=true&useNewUrlParser=true&wtimeoutMS=250&retryReads=false&retryWrites=false&readConcernLevel=available&maxIdleTimeMS=300000&serverSelectionTimeoutMS=750&minHeartbeatFrequencyMS=2000&heartbeatFrequencyMS=20000

      It is possible to observe the reconnections through MongoDB logs. The reconnections starts just after the driver initiate and without any loading. 

        1. image-2022-11-30-14-40-37-564.png
          image-2022-11-30-14-40-37-564.png
          59 kB
        2. mongoserver-logs.json
          170 kB
        3. nodejs-alexa-profiling.cpuprofile
          5.23 MB

            Assignee:
            neal.beeken@mongodb.com Neal Beeken
            Reporter:
            kaio3henriquemelo@gmail.com Kaio Henrique
            Bailey Pearson
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              Created:
              Updated:
              Resolved: