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- Redis high availability practice
- 0×01 Preface Redis is an open source log-type Key-Value database written in ANSIC language, supports network, can be memory-based and persistent, and provides APIs in multiple languages. Nowadays, Internet business data is growing at a faster rate, and data types are becoming more and more abundant, which puts forward higher requirements for data processing speed and capabilities. Redis is an open source in-memory non-relational database that brings a disruptive experience to developers. Designed from start to finish with high performance in mind, Redis is the fastest NoSQL database available today. While considering high performance, high availability is also an important consideration. Internet 7×24 uninterrupted service during downtime
- LINUX . lvs 1236 2024-08-20 16:51:04
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- Redis high availability practice
- 0×01 Preface Redis is an open source log-type Key-Value database written in ANSIC language, supports network, can be memory-based and persistent, and provides APIs in multiple languages. Nowadays, Internet business data is growing at a faster rate, and data types are becoming more and more abundant, which puts forward higher requirements for data processing speed and capabilities. Redis is an open source in-memory non-relational database that brings a disruptive experience to developers. Designed from start to finish with high performance in mind, Redis is the fastest NoSQL database available today. While considering high performance, high availability is also an important consideration. Internet 7×24 uninterrupted service during downtime
- LINUX . lvs 817 2024-08-20 16:51:02
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- Describe in detail the VIP and DIP cross-segment examples of LVS-DR
- In daily application environment, we will encounter such a lvs deployment environment. All DRs and rsservers are in a LAN environment, but there is only one public network IP, and the application needs to be published to the Internet. We all know lvs The best model is that all servers have a public network IP, but in many cases public network resources are scarce. When there is only one public network IP, how to release LVS to the outside world? 1. Experimental topology 2. Overall environment 3. Detailed configuration Router configuration eth0: Public network IP access INTERNETeth1: 172.18.68.10 (public network IP) # Use 172.18.68.10 as public network IPeth2 in the experimental environment:
- LINUX . lvs 427 2024-07-23 13:46:30
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- AIX_EXT_VG
- #lspvhdisk000cd7e82847793f8rootvgactivehdisk100c759e2b092ddeealtinst_rootvg#lsvgrootvgdatavgJDEvgvgbackupaltinst_rootvgrmanbakvg#varyonvg-faltinst_rootvg#bootinfo-shdiskpower3##扩容rmanbakvgVGextendvgrmanbakvghdiskpower3#lspv#lspvhdisk000cd7e82847793f8
- Computer Knowledge . lvs 1044 2024-02-20 11:00:05
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- Keepalived installation and VIP automatic drift
- Keepalived is a high-availability solution based on LVS (Linux Virtual Server), which is mainly used for load balancing and failover in Linux environments. Keepalived ensures service continuity and reliability by using virtual IP addresses (VIPs) and health check mechanisms. Among them, VIP automatic drift is a key feature of Keepalived, which allows the service to be seamlessly switched to the backup server when the main server fails. This article will briefly introduce the installation and configuration of Keepalived to achieve high availability clusters. It is designed to provide guidance for beginners to help them master this key technology and improve their Linux system management capabilities. Terminology explanation for a deeper understanding of Kee
- Computer Knowledge . lvs 938 2024-02-19 13:30:04
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- Main architecture of Linux system
- The Linux system is a complex and elegant software project. It is composed of multiple different components that work together to provide powerful functions and performance. But, do you know what the main architecture of a Linux system is? This article will introduce the four main components of the Linux system: kernel, shell, file system and application, as well as the relationship and role between them. With the continuous development of IT operation and maintenance, especially the rapid development of Linux, more and more enterprises are beginning to use Linux operating system platforms, such as CentOS, RedHat, Ubuntu, Fedora, etc., and hundreds of millions of websites have emerged on the Internet today. , the Internet has become an indispensable tool, so today we will share it with you
- LINUX . lvs 611 2024-02-14 11:40:13
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- CentOS installs LVS and CentOS installs virtual machine
- As an open source operating system, LINUX's stability and reliability have been widely recognized and applied. Among LINUX systems, CentOS is a very popular version and is known for its stability and security. This article will introduce How to install LVS (LinuxVirtualServer) on CentOS system and how to install virtual machine on CentOS system. CentOS installation LVSLVS is a load balancing software based on the Linux kernel. It can distribute access requests to multiple servers, thereby improving the performance and reliability of the system. The following are the steps to install LVS on CentOS systems: 1. Make sure you CentOS system has installed the latest
- LINUX . lvs 503 2024-02-09 15:12:38
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- Establish a mac virtual machine cluster
- Introduction: This article is here to introduce you to the relevant content about mac virtual machine clusters. I hope it will be helpful to you, let’s take a look. How to set up the shared folder of the vmware virtual machine on a Mac computer? First, enter the virtual machine and open the [Finder Preferences] window. According to the picture below, check all menu options one by one. This is the first step. After completing the check, follow the arrow instructions and click the [Virtual Machine-Install VmwareTools] option. This is the second step. To configure a shared folder in a Windows virtual machine, follow these steps: Start VMwareFusion and then start the desired virtual machine. In the virtual machine, click on the Settings option. Then select the "Share" option. In Fu
- MAC . lvs 702 2024-01-23 14:33:05
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- Steps to enter CentOS 7 emergency repair mode
- Open the centos7 page and appear: welcome to emergency mode! afterloggingin, type "journalctl -xb" to viewsystemlogs, "systemctlreboot" toreboot, "systemctldefault" to tryagaintobootintodefaultmode. giverootpasswordformaintenance(??Control-D???): Solution: execute r
- LINUX . lvs 1422 2024-01-13 09:36:11
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- DPVS: an open source load balancer
- IntroductionDPVS is a high-performance layer 4 load balancer based on DPDK. Modified based on Alibaba/LVS, out of blue and better than blue. The full name of DPDK is "DPDK-LVS". In order to achieve high performance, a variety of different technologies are used Kernel bypass (user space implementation) No CPU, no key data (no locks) RX steering and CPU binding (avoiding context switches) Batch TX/RXZero copying (avoiding packet copying and system calls). Polling replaces interrupts. Lock-free messages for high-performance ICP. Other technologies enhanced by DPDK The main features of DPVS include: L4 load balancer, including FNAT, DR mode and other different scheduling algorithms such as RR, WLC, WRR and other user space LiteIP
- LINUX . lvs 1389 2024-01-10 19:10:42
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- Web server performance improvement methods
- Introduction With the continuous development of the Internet, more and more needs in daily life are realized through the Internet. From food, clothing, housing and transportation to financial education, from pockets to identity, people rely on the Internet all the time, and more and more people complete their tasks through the Internet. own needs. As a Web server that directly faces requests from customers, it will undoubtedly have to withstand more requests at the same time and provide users with a better experience. At this time, the performance of the web side often becomes a bottleneck for business development, and it is urgent to improve performance. The author of this article summarized some experiences in improving the performance of the Web server during the development process and shared them with everyone. Problem Analysis Regarding the performance of the Web server, first we analyze the relevant indicators. From the user's perspective, when the user calls the Web service, the request return time
- LINUX . lvs 1259 2024-01-07 18:10:32
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- How to adjust swap size in Linux? Tips for expanding Linux swap partition
- Let me share with you how to expand the swap partition capacity in Linux. First, use the fdisk-l command to check the size of the swap partition of the current system. The current size is 4G; edit the host settings and add a 10G hard disk. Use the fdisk-l command again to check whether the newly added hard disk is recognized normally. For the newly added hard disk partition, adjust the format to LVM and use: fdisk/dev/sdb-->n-->p-->1-->Enter->Enter-->t-->8e-- >p-->w command. Use partx/dev/sdb to view the newly formatted hard disk and view the status of pv, vg and lv before expansion.
- LINUX . lvs 1770 2024-01-03 19:46:16
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- In-depth exploration of the knowledge system in the field of surveillance
- Guide monitoring is the most important part of the entire operation and maintenance and even the entire product life cycle. It provides timely warnings to detect faults beforehand, and provides detailed data afterwards for tracing and locating problems. There are many good open source products in the industry to choose from. Choosing an open source monitoring system is a time-saving, labor-saving and most efficient solution. Of course, friends who don’t know much about monitoring may have a deeper understanding of the entire monitoring system after reading the following article. 1. Monitoring objectives Let’s first understand what monitoring is, the importance of monitoring and the goals of monitoring. Of course, everyone is in a different industry, company, business, position, and has a different understanding of monitoring, but we need to pay attention. Monitoring needs to be considered from the company's business perspective, rather than targeting a specific monitoring technology.
- LINUX . lvs 807 2024-01-01 19:17:33
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- Things to note when developing ThinkPHP: Proper use of distributed deployment solutions
- ThinkPHP is a popular PHP development framework that is easy to use, efficient and stable. Therefore, you need to pay attention to some details during the development process, especially when using a distributed deployment solution. This article will discuss some issues that need to be paid attention to during the development of ThinkPHP, as well as methods of rationally using distributed deployment solutions. 1. Understand the basic concepts of distributed deployment. Distributed deployment refers to deploying different functional modules of the system on different servers to achieve higher performance and availability. In ThinkPHP
- ThinkPHP . lvs 1383 2023-11-22 12:30:42
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- How to optimize network performance and load balancing in Linux systems
- How to optimize network performance and load balancing in Linux systems Network performance optimization and load balancing play an important role in modern network environments. Linux systems are widely used in servers and network equipment, so it is very valuable to understand how to optimize network performance and load balancing on Linux systems. This article will introduce some commonly used network performance optimization and load balancing techniques and provide specific code examples. 1. Network performance optimization. Use high-performance network drivers. Use high-performance network drivers to display
- Linux Operation and Maintenance . lvs 959 2023-11-07 12:29:00
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