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Five common MySQL slow log analysis tools comparative analysis _php Tutorial

Enable slow LogThere are two ways to enable: 1, in MY.CNF through Log-slow-queries[=file_name] 2, when mysqld process starts, specify the--log-slow-queries[=file_name] option Five common tools for comparisonMysqldumpslow, Mysqlsla, Myprofi, Mysql-explain-slow-log, Mysqllogfilter Mysqldumpslow, MySQL official provides

Use of mysqlsla, a log tool for slow database query, which is more powerful than mysqldumpslow.

Use of mysqlsla, a log tool for slow database query, which is more powerful than mysqldumpslow. Install mysqlslaSource code path: https://github.com/daniel-nichter/hackmysql.comSource code storage path:/usr/local/src1. Get source codeIf you do not have the git command, install git first.Yum install git Cd/usr/local/src Git clone https://github.com/daniel-nichter/hackmysql.com.git Cp-Rf hackmysql.com/opt/mysqlMonitor Cd/opt/mysqlMonitor/mysqlsla Perl M

MySQL: Indexing principle and slow query optimization

Tags: arc reason checkpoint RDS warnings ref MIPS build SCI An introduction The principle of two indexes Three-indexed data structures Three MySQL index management Four Test indexes Five correct use index Six query optimization artifact-explain The basic steps of seven-slow query optimization Eight Slow log management Nine Reference Blogs An introductionWhy

MySQL Slow query log process

Original address: http://itlab.idcquan.com/linux/MYSQL/922126.htmlThe MySQL slow query log is very useful for tracking problematic queries, which can be used to analyze the SQL statements that consume resources in the code implementation, and have a high reference to the optimization of our program. This article is mainly about the slow query log on, log analysis, which is also an important step in the gene

How to use Mac to run Windows on Mac all tips

In the past, Macs had some compatibility issues with Mac when running Windows, such as the inability to easily share files and printers between Apple and Windows systems, software that was not developed for Mac platforms, and different network protocols (tcp/ IP and AppleTalk), but these have become history. Most of the mainstream office and production software, including Microsoft's Office,intuit QuickBoo

MySQL slow Query

MySQL slow Query Slow query (slow log)It can help us locate specific SQL statements for SQL statement optimization. For example, slow query logs record the SQL statements whose execution time exceeds the given value, so as to locate the problem. Enable slow Query View MySQL

MySQL Slow query Mysqldumpslow analysis method

MySQL tutorial optimization of the first step should be to troubleshoot problems, to find bottlenecks, and usually the bottleneck and problems need to observe the operation of MySQL to analyze, "view the MySQL health" This article lists some commonly used to view the MySQL running information ways. For most programmers, the most easily discovered and solved problem is MySQL's slow query or no indexed query, so here's how to use the official Mysqldump

Anemometer based on Pt-query-digest to visualize MySQL slow query

Reference article:Http://ourmysql.com/archives/1359?utm_source=tuicoolutm_medium=referralOfficial: Https://github.com/box/AnemometerSingle-node anemometer monitoring1 Installing Anemometer# cd/data/www/web3# git clone https://github.com/box/Anemometer.gitanemometer CD anemometer2 Creating tables and user names# mysql-uroot-proot We can look at the following table structure as follows650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M01/82/C2/wKioL1dgsumQ5XJvAABppErvjtI393.png "style=" floa

Change the Mac address in windows and change the mac address in windows.

Change the Mac address in windows and change the mac address in windows. Method 1: Right-click the "Network Neighbor" icon on the desktop and select "properties". In the displayed "network connection" dialog box, right-click the "local connection" icon, select "properties". A "Local Connection Properties" dialog box is displayed. Click "Configure" and select "advanced ", select "Network Address" in the "att

Android obtains mac addresses. android obtains mac addresses.

Android obtains mac addresses. android obtains mac addresses. Http://www.cnblogs.com/xioapingguo/p/4037513.html Find it online, record it public static String getMacAdress(){ WifiManager wifi = (WifiManager) sContext.getSystemService(Context.WIFI_SERVICE); WifiInfo info = wifi.getConnectionInfo(); return info.getMacAddress(); } Remember to add the permission How does android obt

Virtual machine installation Mac OS X-----VM12 install Mac OS X

Windows under Virtual machine installation Mac OS x-–vm12 install Mac OS X 10.11With the iphone in the country, more and more developers into the iOS development army, but are suffering from the Apple machine, this article will introduce the win virtual Mac tutorial.First, tools:Mac OS X 10.11 image file Download the extract password is Dqbiunlocker208 file extra

Mac software How to install and uninstall a tutorial on loading and unloading Mac software

How does Mac software install and uninstall? Mac software and Windows system EXE file is not the same, so can not share the use of the next small series will be detailed introduction to the Mac software installation and uninstall tutorials, I hope to help.   Install with Software installation package 1. Download the version for

TCP/IP details-congestion control & slow start fast recovery congestion avoidance

various commands between nodes in order to select the control strategy and implementation control. This creates additional overhead. Congestion control also needs to allocate some resources to individual users, so that network resources can not be better shared.2. Several congestion control methodsSlow start (Slow-start), congestion avoidance (congestion avoidance), fast retransmit, and fast recovery (fast recovery).2.1

MySQL Slow query use detailed

1 Slow query definition MySQL records all SQL statements that execute a time threshold that exceeds the Long_query_time parameter setting. The slow query log is the log that logs these SQL. 2 Open Slow query log Locate the MySQL configuration file my.cnf. Add under Mysqld The code is as follows: Log-slow-queries =

Mysql Slow Query Use detailed _mysql

1 Slow query definitionMySQL records all SQL statements that execute a time threshold that exceeds the Long_query_time parameter setting. The slow query log is the log that logs these SQL. 2 Open Slow query logLocate the MySQL configuration file my.cnf. Add under Mysqld Copy Code code as follows: Log-slow

How to find NTFS for Mac in Mac System Preferences

NTFS for Mac is specifically designed to solve the MAC system does not recognize and read the NTFS disk development software, for Chinese users, in the Mac system played a big role, after we installed it, only need in the Mac computer System Preferences to open the software, But some friends react by not seeing the ico

How to modify NTFS parameters on Mac with NTFS for Mac

In daily life, a lot of Mac computer users need to read some NTFS-formatted external hard disk when using Mac, but sometimes it is not easy to read, this some user friends brought a lot of trouble. NTFS for Mac This software is to solve this problem for everyone. Let's introduce how to use NTFS for Mac to modify NTFS p

"Go" VMware 11 installs Mac OS X 10.10 and installs Mac VMware Tools.

Original URL: http://www.cnblogs.com/Anand/p/4483727.html first on a piece of excitement, Bo master poor cock Silk One, only through the virtual black Apple experience under the high-rich life, feel super cool, nonsense not much to say, direct! Directory:1. Install the required software download;2.MAC OS X10.10 installation basic steps;3.Vmware Tools installation steps;4. View the number of Apple system bits;1. Install

Enable mysql slow query and analyze query statements in linux

I. Why should I enable this query? Databases are prone to bottlenecks. Now Nosql is so popular that it is estimated that they are all depressed by databases. The statements that affect the query speed in mysql are very slow. These slow statements may be written improperly or the Combined Query of multiple tables in big data, so we need to find out these words. I. Why should I enable this query? Databases ar

Mysql slow log query Process

Mysql slow query log process mysql slow query log is very useful for tracking problematic queries, you can analyze the resource-consuming SQL statements in code implementation, there is a high reference for our program optimization. This article mainly introduces the enabling and Analyzing of slow query logs, which is also a crucial step in optimizing SQL program

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