@Bean
    public MongoClientOptions mongoClientOptions(){

        return MongoClientOptions.builder()
                .readConcern(ReadConcern.LOCAL)
                .writeConcern(WriteConcern.W1)
                .readPreference(ReadPreference.primary())
                .serverSelectionTimeout(120000)
                .maxWaitTime(120000)
                .connectionsPerHost(10)
                .connectTimeout(120000).build();
    }