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  1. Go Driver
  2. GODRIVER-1039

mongo-go-driver fails with Server Selection Timeout when using MongoDB Atlas

    • Type: Icon: Bug Bug
    • Resolution: Duplicate
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 1.0.1
    • Component/s: None
    • None

      Go Version: 1.12.5

      I have this code which uses the node.js mongo driver

      const MongoClient = require('mongodb').MongoClient;
      const uri = process.env.MONGO_HOST + "dbname?retryWrites=true";
      const client = new MongoClient(uri,

      { useNewUrlParser: true }

      );

      client.connect(async (err) => {
      if (err)

      { throw err }

      const collection = client.db("dbname").collection("collectionName");
      const cursor = collection.find()
      await cursor.forEach(console.log)
      // perform actions on the collection object
      client.close();
      });

      Which works fine.

      Using the `mongo-go-driver`, I do:

      client, err := mongo.NewClient(options.Client().ApplyURI(os.Getenv("MONGO_HOST") + "dbname?retryWrites=true")
      if err != nil

      { panic(err) }
      ctx, _ := context.WithTimeout(context.Background(), 10*time.Second)
      err = client.Connect(ctx)
      if err != nil { panic(err) }

      database := client.Database("dbname")
      collection := database.Collection("collectionName")

      res, err := collection.Find(context.Background(), bson.M{}, &options.FindOptions{
      Sort: bson.M

      { "priority": -1, }

      ,
      })
      if err != nil

      { panic(err) }
      results := make([]structs.ResponseType, 0)
      err = res.All(context.Background(), &results)
      if err != nil { panic(err) }

      But this panics with:

      panic: server selection error: server selection timeout
      current topology: Type: ReplicaSetNoPrimary

      I am not running this inside a container/docker.

            Assignee:
            Unassigned Unassigned
            Reporter:
            AyushG3112 Ayush Gupta [X]
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              Created:
              Updated:
              Resolved: