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Tags: semi-synchronous replication MySQL's semi-synchronous replication IntroductionMySQL enables high availability of storage systems through replication (Replication). Currently, MySQL supports
First, let's look at the problems that the database often encounters:The first is the performance problem.1, upward expansion (hardware) scale up the individual itself easily reached the limit2, outward expansion scale outThe second is the question of usability.1. Database service Interruption2. damage to the wrong operation data3. Hardware Failure4. Database Upgrade test encountered bug5. Hacker attacksBased on the above problems, there is a better solution, that is, to implement the master-sla
Implementation of mysql semi-synchronous replication bitsCN.com The differences between mysql semi-synchronous replication and asynchronous replication are shown in the preceding architecture diagram: when mysql asynchronous replicatio
Mysql also supports semi-synchronous replication in master-slave replication. mysql replication is asynchronous because of poor synchronization performance. After the master database delivers an event, you must wait for the slave database to copy the data and receive Mysql also supports semi-
The differences between MySQL semi-synchronous and asynchronous replication are as shown in the architecture diagram above: In the case of MySQL asynchronous replication, MySQL master server transfers its binary log through the replication thread, MySQL Master Sever automatically returns data to the client, regardless
Master Gtid (viewable through Retrieve_gtid_set).When the slave is connected to master, the Gtid in gtid_executed is sent to Master,master, which automatically skips the transactions and sends only those things that are not copied to slave.Gtid statements/Transactions not supported1.CREATE TABLE ... SELECT2. Both support transactions and the engine that do not support transactions are used in the transaction.BEGIN;INSERT into Innodb_tbl (...);INSERT into Myisam_tbl (...);COMMIT;3. Using Create/
The differences between mysql semi-synchronous replication and asynchronous replication are shown in the preceding architecture diagram: when mysql asynchronous replication occurs, after the Mysql Master Server transfers its Binary Log through the replication thread, the Mys
Set up mysql semi-synchronous replication (semi_sync_replication) and use google to develop a patch for mysql based on semi-synchronous, application and mysql5.0. Mysql is installed with this patch and used in mysql 5.5. What is the concept of semi-synchronous replication? B
Tags: mysql1. Issue backgroundBy default, MySQL replication on the line is asynchronous, so in the extreme case, there is a certain probability of cubby the main library data when switching, so after the switch, we will rollback back to the tool to ensure that the data is not lost. Semi-synchronous replication requires that the main library perform every transact
Tags: level func SLA content form RAC Low latency file inconsistencyI. Overview 5.5 and 5.7 semi-synchronous replication may differ, starting with MySQL5.5, MySQL supports semi-synchronous replication in the form of plugins Async : By default, MySQL replication is asynchrono
Tags: mysql mysql semi-syncThis article environmentMain Library: CentOS6.5 x64 192.168.0.65 mysql-5.6.29Library: CentOS6.5 x64 192.168.0.66 mysql-5.6.29Next: mysql-5.6 master-Slave synchronization configuration Example http://koumm.blog.51cto.com/703525/1764093the concept of semi-synchronous replication:mysql5.5.x the version above supports semi-synchronous replication
Troubleshooting of mysql semi-synchronous replication and mysql Synchronization 1. BackgroundBy default, online mysql replication is asynchronous. In extreme cases, when switching between the master and slave databases, there is a certain probability that the slave database has less data than the master database. Therefore, after switching, we use tools to perfor
:0master_ssl_verify_server_ cert:no last_io_errno:0 Last_IO_Error: last_sql_errno:nbSp;0last_sql_error: Replicate_Ignore_Server_Ids: Master_Server_Id:3306 master_uuid:97f33396-ed12-11e4-921a-000c29e8ee06 master_info_file:/mydata/ data5.6/master.info sql_delay:0sql _remaining_delay:nullslave_sql_running_state:slavehas readallrelaylog;waitingfortheslaveI/Othread toupdateitMaster_Retry_Count:86400 Master_Bind: last_io_error_timestamp:last_sql_error _timestamp: Master_ssl_crl:master_ssl_crlpath: Ret
; Create a Iot2 library in master and discover that it is synchronized Turn on Half-sync 1, install the plugin on master:Install plugin rpl_semi_sync_master soname ' semisync_master.so ';SET GLOBAL Rpl_semi_sync_master_enabled=on;In the MY.CNF configuration file, add rpl_semi_sync_master_enabled = 1 2, in the slave add-ons:Install plugin rpl_semi_sync_slave soname ' semisync_slave.so ';SET GLOBAL rpl_semi_sync_slave_enabled =on;In the MY.CNF configuration file, add rpl_semi_sync_slave_enable
I. Tutorial purpose: Mysql also supports semi-synchronous replication in master-slave replication. mysql replication is asynchronous because of poor synchronization performance. After the master database distributes events, you must wait until the slave database completes copying data and receives the normal response f
Label:. ；‘MySQL Semi-synchronous replicationA IntroducedStarting from MYSQL5.5, semi-automatic replication is supported. Previous versions of MySQL replication were asynchronous (asynchronous), and the master library did not Tabeku progress after performing some transactions. If the repository is unfortunate, and more unfortunately, the main library is now crash
Tags: copy semi-synchronous pluginA: Prerequisites Master-slave replication is done (see previous article)Second, the realization of semi-synchronous replication of the prerequisite conditions1. Installing the plugin PluginMySQL default is not support semi-synchronous, is su
Back-end distributed series: distributed storage-two-way synchronous replication of MySQL Databases The last article on MySQL replication focuses on the design points and constraints of the two-way synchronous replication architecture.Problems and restrictions Database dual
Back-end distributed series: distributed storage-two-way synchronous replication of MySQL DatabasesThe last article on MySQL replication focuses on the design points and constraints of the two-way synchronous replication architecture. The dual-master, dual-write, and bidirec
In-depth analysis of semi-synchronous and asynchronous MySQL master-slave replication configurations, In short, MySQL master-slave replication is a C/S architecture application. The master can be considered as the server in the general sense, and the slave can be considered as a client. The I/O thread on the slave requests data on the master. After the master ver
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