Set Mongo Timeout in Spring Boot

Question

I am using spring boot web application which connects to mongo db which is working out of the box. I just use the following properties:

spring.data.mongodb.host=myHost
spring.data.mongodb.port=27017
spring.data.mongodb.database=myDatabase
spring.data.mongo.repositories.enabled=true
spring.data.mongodb.username=myUser
spring.data.mongodb.password=myPassword

The default timeout to MongoDB is 10 seconds. I would like to configure the timeout. I tried doing spring.data.mongodb.socketTimeout=2 or spring.data.mongodb.connectionTimeout=2

None of the properties work. Is it something that I can specify in the properties and the Spring framework will take care of it or can someone give example of doing it by declaring the Bean.

Answer 1

To follow your theme, this would be the best to answer your question. Looks like you would like to set a timeout in your application.properties file.

In order to do so:

Instead of

spring.data.mongodb.host=myHost
spring.data.mongodb.port=27017
spring.data.mongodb.database=myDatabase

spring.data.mongodb.username=myUser
spring.data.mongodb.password=myPassword

Try this

spring.data.mongodb.uri=mongodb://myUser:myPassword@myHost:27017,myHost:27017/myDatabase?serverSelectionTimeoutMS=2000&connectTimeoutMS=2000
spring.data.mongodb.database=myDatabase
spring.data.mongo.repositories.enabled=true

Modify time in milliseconds to desired time.

Answer 2

For Spring Data with Reactive MongoDb:

My case was a bit different (I had closing connections - which throws "Caused by: java.lang.IllegalStateException: state should be: open")

But You can use this with your case.

application.yml:

spring.data.mongodb:
  host: localhost
  database: myDb
  port: 27017
  username: admin
  password: test

If Your implementation use MongoReactiveAutoConfiguration for bean creation, then You can configure it with this bean:

@Bean
public MongoClientSettings mongoClientSettings() {
    final MongoClientSettings clientSettings = MongoClientSettings.builder()
            .retryWrites(true)
            .applyToConnectionPoolSettings((ConnectionPoolSettings.Builder builder) -> {
                builder.maxSize(300) //connections count
                        .minSize(100)
                        .maxConnectionLifeTime(0, TimeUnit.MILLISECONDS)
                        .maxConnectionIdleTime(0, TimeUnit.MILLISECONDS)
                        .maxWaitTime(5000, TimeUnit.MILLISECONDS)
                        .maxWaitQueueSize(5000);
            })
            .applyToSocketSettings(builder -> {
                builder.connectTimeout(2000, TimeUnit.MILLISECONDS);
            })
            .applicationName("app")
            .build();

    return clientSettings;
}

Answer 3

This will override the Spring Boot autoconfiguration:

@Configuration
public class MongoDbSettings {

    @Bean
    public MongoClientOptions mongoOptions() {
        return MongoClientOptions.builder().socketTimeout(2000).build();
    }

}