mariadb high availability

High-availability network system design for data centers The data center has many fault types, but the results are similar. That is, the device, link, or server in the data center fails and cannot provide normal services externally. The simplest way to mitigate these problems is Redundancy Design. By providing backups to devices, links, and servers, you can minimize the impact of faults on your business. H

What is high availability? Many companies provide 24 hours * 365 days of uninterrupted services. For example, CallCenter. This requires high availability. For example, a shopping website can be traded at any time. When the shopping network server fails, it cannot have any impact on the business. This is

Maintaining the longest normal system running time is increasingly important for the on-demand computing success. Unfortunately, many off-the-shelf high availability (HA) solutions are expensive and require specialized technologies. Five articles in this series will provide a cheap alternative to obtaining HA services using publicly available software. Detailed steps in this series will show you how to buil

Third, the experiment Step 1, modify the configuration file, three nodes as Vim/etc/my.cnf.d/server.cnf Wsrep_provider =/usr/lib64/galera/libgalera_smm.soWsrep_cluster_address= "gcomm://192.168.190.129,192.168.190.130.192.168.190.131"Binlog_format=rowDefault_storage_engine=innodbinnodb_autoinc_lock_mode=2bind-address=0.0.0.0The following configuration options are availableWsrep_cluster_name = ' mycluster ' default My_wsrep_clusterWsrep_node_name = ' Node1 'wsrep_node_address = ' 1

http://freeloda.blog.51cto.com/2033581/1280962 Original works, allow reprint, reprint, please be sure to hyperlink form to indicate the original source of the article, author information and this statement. Otherwise, legal liability will be held. http://freeloda.blog.51cto.com/2033581/1280962 Outline First, the preface Second, keepalived detailed Iii. Environmental Preparedness Four, lvs+keepalived realize the high

This article is based on the Dbaplus community's 67th phase of the online sharingThis share mainly includes the following content:1. mysql High-availability Program2. Why Choose MHA3, read-write separation scheme and why choose MaxscaleOne, MySQL failover programCommon Failover Scenarios MMM Mmm Cons: The monitor node is a single point that can be combined with keepalived to achieve a

>> High-availability clustering solutions Ha (high availability) refers to increasing the availability of systems and applications by minimizing downtime due to routine maintenance operations (planning) and sudden system crashes (unplanned). The

1.1 NetScalerHigh Availability Overviewwe know that in high availability environments, it is common to need 2 devices of the same model to complete the construction of a high-availability environment. The construction of a high

dw:1748992 dr:0 al:8 bm:0 lo:0 pe:0 ua:0 ap:0 E P:1 wo:foos:347036 [===============>...] Sync ' ed:83.6% (347036/2096028) K finish:0:00:08 speed:39,832 (39,748) want:59,560 k/secFormat and Mount:[Email protected] ~]# MKFS.XFS/DEV/DRBD1 [[email protected] ~]# Mount/dev/drbd1/dataTo add a database to a database:MariaDB [(None)]> create Databasecentos; Query OK, 1 row affected (0.04 sec) MariaDB [(none)]> show databases; +--------------------+ | Databas

point and can be used in conjunction with keepalived for high availability.Experimental requirementsTwo master servers Mastermaster1:192.168.177.128master2:192.168.177.135Two slave servers slaveslave1:192.168.177.132slave2:192.168.177.133Monitoring Server Monitormonitor:192.168.177.134Configure the Ali cloud Source, then install the epel-release source (four master-slave)# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Cento

the index name"Created November 27, 2016"Mysql5.7/percona Version 5.7 Support2) The online DDL modifies the varchar field property when the table is not locked"created November 27, 2016"MySQL 5.7 has been enhanced for DDL functionality, and modifying the varchar field has not locked the table.* Algorithm for specifying the algorithm to create or delete an index* Copy means to create a temporary table and copy the data in full form, with the original table plus global read lock, according to the

Label:... Availability Group system backup work Rich folder admin content standaloneThe project needs to ensure high availability of data, so the option is nothing more than Oracle clustering, traditional master-slave + heartbeat access points, and SQL Server AlwaysOn-like scenarios. (//experience is not much, understand and practice the program on this kind of,

server to the server farm, all of which are done automatically, without the need for manual intervention, and the only thing that needs to be done manually is to repair the failed Web server.Similar HA tools are heatbeat, DRBD, etc., Heatbeat, DRBD configuration are more complex.Keepalived Theory Working principleKeepalived can provide VRRP and Health-check functions, can only use it to provide dual-machine floating VIP (VRRP virtual routing function), which can easily realize a dual-machine ho

industries and enterprise users can create an online audio and video platform through simple development. Now, Netease video cloud technical experts share a technical article on the principle and practice of high availability of HBase.Preface Some time ago there was a small problem with the online HBase, which caused the HBase cluster service to be stopped for two hours, as a result, service exceptions als

Every time we talk about the high availability of SQL Server, many DBAs, especially SQL Server DBAs, feel a pain: Because we all think that SQL Server cannot or is difficult to implement SQL Server. There are also a lot of DBA friends with a head shot, giving the answer "isn't high availability the technology of Micros

Tags: mysql, mariadbEvery day seems very busy, in fact, found themselves still very lazy, read a lot of books, not a good read. Recently, not so much work, decided to finish reading a few books, and continue to keep on updating. I hope I can persist in the end! The later content is all about MySQL management (performance tuning, high availability and monitoring), mariad