pt interval

MySQL master-slave replication is an important part of the MySQL high-availability architecture. It can be used to achieve load balancing, high availability and failover, and provide backup. For master-slave replication monitoring, it is not

Principles and Application of pt-online-schema-change, ptonlinechangeschema If it is reprinted, please indicate the source of the blog: www.cnblogs.com/xinysu/. The copyright belongs to xiaoradish in the blog garden. Thank you for your

Use pt-query-digest to find the SQL statement that is not suitable, pt-query-digestsql  Overview of pt-query-digest1. Indexes can be executed more quickly, but there must be unreasonable indexes. If you want to find those indexes that are not very

Introduction to common killing process parameters of pt-kill and parameters of pt-kill Pt-kill is an excellent tool for kill MySQL connection and is part of percona toolkit, when the maximum number of connections is exceeded due to a large number of

Essays-66 Articles-0 comments-MySQL slow query (ii)-Pt-query-digest detailed slow query log one, Introduction Pt-query-digest is a tool for analyzing MySQL slow query, it can analyze Binlog, Gene RAL Log, Slowlog, can also be analyzed via

Pt-config-diffCompare MySQL configuration files and server parametersExample:PT-CONFIG-DIFF/ETC/MY.CNF h=192.168.53.11--user=root--password=123456--socket=/tmp/mysql.sockpt-config-dirr/etc /my.cnf/etc/my_slave.cnfThe contents are as

MySQL -- pt-osc tool learning, mysql -- pt-osc Tool ##=================================================== ====================== ##Pt-osc workflow:1. Check whether the table has a primary key or a unique index and whether a trigger exists.2. Check

How do I check every 10 seconds to kill a query that exceeds 100 seconds for a specified user?Pt-kill--no-version-check--host 127.0.0.1--port 3306--user ' xxxxxx '--password ' xxxxxx '--charset UTF8--match-command Query--match-user The specified

This article mainly introduces the parameters of common pt-kill processes. if you need it, refer to pt-kill, which is an excellent tool for kill MySQL connection and part of percona toolkit, when the maximum number of connections is exceeded due to

Consistency checking of master-slave data is a headache, and occasionally it is frustrating to be inconsistent with the master-slave data from a business complaint, or a few inconsistencies between the data from the library. Usually we only have one