mysql slow

OverviewMysqlsla is a very good MySQL slow query log analysis tool, and easy to use. Mysqlsla is a script written in Perl that requires support for PERL-DBI and per-dbd-mysql two modules.Installation Environment CentOS 7.1 Percona 5.7 2.

slow query (slow log) can help us navigate to specific SQL statements for SQL statement-level optimizations, for example, the slow query log records those execution times that exceed a given SQL statement, thus locating the problem.Turn on Slow

The MySQL slow query log provides query information over a specified time threshold, providing a major reference for performance optimization, and is a very useful feature.MySQL Slow query log is very simple to open and configure, you can specify

Original: http://blog.csdn.net/a11085013/article/details/17370053Show variables like '%quer% '; query whether to open a slow query!!Step One: Modify My.ini (mysql config file)Add the following two words to the My.iniLog-slow-queries = "D:\wamp\mysql_

Transferred from: http://www.cnblogs.com/gzgccsu/archive/2013/01/23/2873598.html1. What is the use of slow queries?It records all SQL statements that execute more than long_query_time time, helping you to find SQL that executes slowly, so we can

1. What's the use of slow queries?The ability to record all SQL statements that execute more than Long_query_time time will help you find SQL that executes slowly, so we can optimize these SQL.2. How do I turn on slow queries?First we check if the

One, why do you want to open this query?The database is a very easy place to create bottlenecks, and now nosql people are talking about the heat, and it's estimated that the database is depressing. MySQL is the most affected by the speed of the

MySQL Slow query analysisPosted: 29. 08.2014 | Author: Zdz | Category: MySQLMySQL Slow Query log analysis1. Pt-query-digest Analysis Slow query logPt-query-digest–report Slow.log2. Report a slow query for the last half

Analysis of MySQL Slow log is the operation of the work, not less. To quickly locate slow SQL, and to optimize SQL after discovery and to modify the business, ensure that the database works stably and efficiently. Here is my work to solve the idea ..

This article will introduce the slow query log used by Logstash to collect MySQL , then push it to elasticsearchand create a custom index that will eventually be Kibana Web Showcase.Environment Introduction:Operating system version:centos6.6

A: Background introductionTwo: Edit modify slow query log scriptThree: Join a timed task1. If all the slow query logs are placed in a file, it is a long time to see the slow query log will be a very painful thing, so you need to split the slow query

MySQL Slow query1. What is the use of slow queries?It records all SQL statements that execute more than long_query_time time, helping you to find SQL that executes slowly, so we can optimize these SQL.2. How do I turn on slow queries?First we check

The method of analyzing the performance of MySQL statement query in addition to using the EXPLAIN output execution plan, you can also let the MySQL record query over a specified time of the statement, we will exceed the specified time of the SQL

0, first to see whether the current open slow query: (1) Quick way to run SQL statements Show VARIABLES like "%slow%" (2) directly to the my.conf to view. Configuration in my.conf (add under [mysqld] below)

(1) Configuration Open Linux: Add the following statement to the MySQL configuration file my.cnf: Log-slow-queries=/var/lib/mysql/slowquery.log #指定日志文件存放位置, can be null, the system will give a default file Host_name-slow.logLong_query_time=5

If you ' re just completely itching to start using the This tool, here's what you need:1, a MySQL database to store query analysis data in.2, Pt-query-digest. You could as well just get the whole Percona Toolkit when you ' re at it:)3, a slow query

#!/bin/bash# Analysis of the MySQL slow log# Writen by Landline#IPadd = ' grep ' hostname '/etc/hosts | Awk-f ' End{print $ 'Ipadd= '/sbin/ifconfig eth0 |grep bcast |awk-f: ' {print $ {} ' |awk ' {print '} 'Serverday= ' date-d '-1 day ' +%y-%m-%d

MySQL Slow Log on the company line, has not been well monitored. While I was idle last week, I wrote the monitoring script, and today I specially sent out the code to share with 51 Bo friends.For the annotations and the overall idea of the script, I'

When the system performance reaches the bottleneck, it is necessary to find out those operations on the performance impact of the system is relatively large, here you can use the database slow query log function to record some more time-consuming

Let's take a look at how to read these slow query logs.Before you trace a slow query log, you must first ensure that you have a slow query at least once. If you are not able to make one yourself:[Email protected]# mysql-e ' SELECT SLEEP (8);There's