netapp replication

Originally the MySQL binlog and show processlist commands belonged to the two transactions of unrelated, but in the most recent troubleshooting, there was a significant replication delay found in the main library and from the library, but the Slave_behind_master value from the library was shown as 0, The replication SQL thread is blocking each other from the backup thread, but the deadlock is not reported.T

Label:What is Gtid? Gtid is the global transaction ID (transaction identifier), originally implemented by Google, and official MySQL joined the feature in 5.6. Gtid is actually made up of Uuid+tid. Where the UUID is the unique identity of a MySQL instance. The TID represents the number of transactions that have been committed on the instance and is monotonically incremented as the transaction commits. What is multi-source replication? Multi-source

I. Principles of MySQL master-slave Replication 1. mysql replication process: each time a write operation is executed, it will save a copy to its own database. At the same time, this write operation will also be stored in a binary log file, and save them as events. Therefore, each write operation or modification operation on the front-end data in this database will save an event, we will send the event to a

First, IntroductionIn the master-slave copy of the previous article: http://www.cnblogs.com/lay2017/p/9043985.htmlWe learned that MySQL writes logs through master, slave reads and executes the log content to achieve slave data consistent with master. So based on this principle, we can realize the replication function of two master.Broadly as follows:1, both master open Log-bin write log2, ID to repeat3. Configure the tables to be copied4, two master r

Master-Slave replication principle MySQL replication is an asynchronous replication process that replicates from master to one or more slave. The entire replication process between master and slave is done primarily by three threads, one IO thread on the master side and two threads (SQL thread and IO threa

OverviewFor replication with a cache group, the recommended replication policy is Active-standby (A/S) pair. Because it replicates the entire library, replication and recovery are both straightforward and straightforward, and error switching and recovery are automatic.ASP replication with AWT cache Group-Single siteThi

Label:Basic Environment Description: 9.3 PostgreSQL version:9.3. 6 Master:192.168. 56.101 Standby:192.168. 56.102 Installation process slightly, based on pkg package 1. Configure the Master side # psql-u pgsql-d postgres-c"CREATE USER Rep REPLICATION LOGIN ENCRYPTED PASSWORD ' PASSWORD ';" # cd/usr/local/pgsql # vim data/postgresql.conf listen_addresses='*'Wal_level='Hot_standby'max_wal_senders=1# Vim data/pg_hba.conf host

Detailed description of MySQL master-slave replication-log point-based replication, mysql master-slave Log point-based Replication 1. Create a dedicated replication account for the master database and slave Database MariaDB [employees]> create user 'repl'@'172.%' identified by '123456'; Note that the password in produc

There are 3 main steps to the MySQL replication function The primary server logs changes to the binary log (these are called Binary log events)Copy the primary server's binary log events from the server to its trunk logRedo the events in the relay log from the server.The first part of the process is that the primary server records the binary logs, and before each transaction updates the data is completed,Master logs These changes in binary logging, an

ASP. NET deep replication and shortest copy analysis, asp.net deep Replication This article provides an in-depth analysis of ASP. NET deep replication and simple replication. Share it with you for your reference. The specific analysis is as follows: I have never figured out the difference between deep

Redis Research (12)-master-slave replication, redis research master-slave Replication In the previous section, we wrote Redis data persistence. Http://blog.csdn.net/wtyvhreal/article/details/42916503 Through the persistence function, Redis ensures that no (or a small amount of) data is lost even when the server is restarted. However, because the data is stored on a server, if the hard disk of the server fa

Tags: DMI persist compiled boot. SH creat su-udev 5.6--mysql Copy and Build Prepare the SQL2 server, using the method of replication SQL1 --## #sql2 resolve VM NIC Replication issuesVi/etc/udev/rules.d/70-persistent-net.rules1. Find the same line as Ifconfig-a's MacChange to "Name=eth0" 2, the above line name= ' eth0 ' delete --SQL2 Sync MAC address modify IP address 192.168.33.191IfconfigHWaddr 00:0c:29:d1

Tagged: Server server multithreading MySQL styleGtid,global Transaction Identifiers, the global transaction identifier consists of a unique identifier for the server's UUID and transaction ID number. After MySQL 5.6, the transaction header records the server UUID, which is very simple to track.Uuiduniversally unique Identifier, globally unique identifier. A is master,b, C is slave, and when a goes down, B becomes new Master. c You need to copy the transaction you have and B does not have to B,

Previously we introduced is the master-slave replication, here to introduce a double master replication, the following are expected to two of the main server data automatically copied, you can refer to this article.The MySQL master replication structure differs from the master-slave replication structure. In the primar

Semi-synchronous replication in MySQL master-slave Replication Experiment MySQL uses the plug-in provided by Google to complete the semi-synchronous replication model; the physical machine is still Windows 7, and the virtual machine is CentOS 7; Master node: 192.168.255.2 Slave node: 192.168.20.3 Configure the master slave re