Course Intermediate 10914
Course Introduction:"Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.
Course Advanced 16847
Course Introduction:"Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.
Course Advanced 10562
Course Introduction:"Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.
2017-05-16 13:19:03 0 3 1053
centos7 - memory overflow problem when deploying NGINX+MongoDB+GridFS file server?
2017-05-16 17:20:50 0 1 744
node.js - I would like to ask how nodejs stores images in mongodb
2017-06-17 09:15:33 0 4 839
2017-05-31 10:33:19 0 2 576
Course Introduction:MySQL vs MongoDB: Which is better for storing data in memory? With the rapid development of big data and real-time applications, large amounts of data need to be stored and retrieved efficiently, and require low latency and high concurrency processing capabilities. In this context, the choice of database management system (DBMS) becomes crucial. MySQL and MongoDB are two database solutions that have attracted much attention. This article will focus on comparing their differences in storing data in memory and demonstrate their differences in code examples.
2023-07-13 comment 0 1160
Course Introduction:There are two possibilities for checking if the MongoDB database exists. Case 1: The first possibility is that the MongoDB database exists, i.e. a specific index is returned. Case 2: The second possibility is that the MongoDB database does not exist, that is, index -1 is returned. Note: Indexing starts from 0 like an array and ends with (N-1). The syntax is as follows, which is used to check whether the MongoDB database exists. db.getMongo().getDBNames().indexOf("yourDatabaseName"); Case 1: Let us implement the above syntax to check whether the MongoDB database exists. The following is the query db.getMongo(
2023-09-23 comment 0 1012
Course Introduction:How to expand memory if your computer has insufficient memory. With the continuous advancement of technology and the update and iteration of applications, the memory requirements of computers are also gradually increasing. When we use computers, we often encounter insufficient memory, causing the computer to run slowly or even crash. So, when our computer memory is insufficient, how to expand the memory? Method 1: Purchase a larger-capacity memory stick. The memory stick is the main component of computer memory. It determines the computer's ability to perform parallel operations. By replacing existing memory modules or increasing the number of memory modules, we
2024-02-21 comment 0 1091
Course Introduction:Can 2g of computer memory be added to 8g of memory? 1. Just replace it with a 4G one. Generally, it is fine if we use it ourselves. If it is not enough, then install an 8G memory stick and choose the same type according to the model. 2. The memory of a laptop is 2G but can be expanded to 8G. This means that the motherboard of the laptop can manage and support 8G of memory, and the laptop already has 2G of memory. Memory, also generally called main memory, is a storage space that the CPU can directly address. 3. With dual memory slots, you can add an identical 2G slot, but it makes no sense. If you add 8G, you will have 10G of memory. But depending on the situation of your laptop, it is 100% impossible to use up even 4G. Second, it is dual channel. The first 2G of your 8G memory has dual channel, but the last 6G does not.
2024-05-30 comment 0 713
Course Introduction:The difference between memory overflow and memory leak is that memory overflow means that the program cannot obtain the required memory space when applying for memory, while memory leak means that the memory allocated by the program during running cannot be released normally. Memory overflow is usually due to the needs of the program. The memory exceeds the available memory limit, or recursive calls cause stack space to be exhausted, or memory leaks are caused by unreleased dynamically allocated memory in the program, object references that are not released correctly, or circular references. of.
2023-08-21 comment 0 3307