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Type:
Bug
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Resolution: Won't Fix
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Priority:
Major - P3
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None
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Affects Version/s: 1.8.3
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Component/s: None
Summary
MongoDB server version and topology: 4.4 / master+ a slave node replica set
driver version: master
How to Reproduce
- Down the master node.Now only a slave node is on lived.
- use uri mongodb://[username]:[password]@master_ip,slave_ip/db_name
- Set the client option readPreference to primaryPreferred
- Then NewClient and ListCollections.
The code like:
package main import ( "context" "go.mongodb.org/mongo-driver/bson" "go.mongodb.org/mongo-driver/mongo" "go.mongodb.org/mongo-driver/mongo/options" "go.mongodb.org/mongo-driver/mongo/readpref" "log" ) func main() { opts := options.Client().SetReadPreference(readpref.PrimaryPreferred()) client, err := mongo.NewClient(options.Client().ApplyURI(""), opts) if err != nil { log.Fatal(err) } if err := client.Connect(context.Background()); err != nil { log.Fatal(err) } _, err = client.Database("dbName").ListCollections(context.Background(), bson.D{}) if err != nil { log.Fatal(err) } }
It will return error like:
server selection error: server selection timeout, current topology: {Type: ReplicaSetNoPrimary}
By reading source code of mongo-go-driver,I think the problem be here:
- related to
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DRIVERS-1186 Allow db/collection/index enumeration to respect read preference
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- Closed
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