What is the solution "com.mongodb.MongoSocketReadException" and "com.mongodb.MongoTimeoutException"

Hi I have the same problem for a while then I found this http://3t.io/blog/how-to-prevent-your-connection-from-dropping-with-hosted-mongodb-instances/

it says the connection maybe drop after a short period inactive, but will pick it up when you try to connect again.

If your code is long running application I would recommend to change like this: change the connection constructor add MongoClientOptions

    public void writeDB() {

        MongoClientOptions.Builder builder = new MongoClientOptions.Builder();

         //build the connection options  
        builder.maxConnectionIdleTime(60000);//set the max wait time in (ms)
        MongoClientOptions opts = builder.build();


<strike>MongoClient mongoClient = new MongoClient ("127.0.0.1", 27017);</strike>

        MongoClient mongoClient = new MongoClient ("127.0.0.1：27017", opts);
        mongoClient.setWriteConcern(WriteConcern.JOURNALED);

        DB database = mongoClient.getDB("myCollection");    
        BasicDBObject newDataObject = new BasicDBObject();    
        DBCollection collection = database.getCollection("myCollection");



        int number = 0;    
        for (int i = 0; i <= 1000000; i++) {
            if(CHECKDATA_EXIST) {
            int randomCount = (10 + (Math.random() * 300));    
        for (int j = 0; j < randomCount; j++) {
            number = i + randomCount;
        }

        newDataObject.put("_id", i);
        newDataObject.put("myNumber", number);    
        collection.insert(newDataObject);
    }
    }
}

Hope this will help

In your code you insert single documents in loops so instead of sending every single document use bulk write changed your code accordingly.

check below code snippet :

DBCollection collection = database.getCollection("myCollection");
BulkWriteOperation  bulkWriteOperation= collection.initializeUnorderedBulkOperation();
 for (int i = 0; i <= 1000000; i++) {
            BasicDBObject newDataObject = new BasicDBObject();
            IncrementalStat incrementalStat = new IncrementalStat();
            double randomCount = (10 + (Math.random() * 300));

            for (int j = 0; j < randomCount; j++) {
                number = i + randomCount;
            }

            newDataObject.put("_id", i);
            newDataObject.put("myNumber", number); 
             bulkWriteOperation.insert(newDataObject);
        }
       //write all data using bulk execute
         BulkWriteResult result=bulkWriteOperation.execute();