slow query log analyzer

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 data can be manipulated to determine where the need for optimization.Here are some common commands for using

Tags: blog http recommended suspended animation Gravity statement root list slowLet'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

The slow query log feature is not turned on by default, and it records a value that executes longer than the parameter Long_query_time (default is 10) and the number of rows accessed exceeds the SQL statement that the parameter min_examined_row_limit is worth.Mysql> Show variables like ' Long_query_time ' \g*************************** 1. Row *********************

= "Wkiol1coikgs_egcaaa2ncdcegy556.png"/>Log-slow-queries: On behalf of the MySQL slow query log storage directory, this directory file must have write permissionsLong_query_time: Maximum execution time (MySQL will record all SQL statements with execution time exceeding 2 sec

Tags: mysql optimization slow log analysis (anemometer+pt-query-digest)IntroducedUse Pt-query-digest to collect slow query logs. Store the data in two tables: Global_query_review and Global_query_review_history. The data collected

How do I turn on the slow query log?Added in MySQL config file my.cnfLog-slow-queries=/var/lib/mysql/slowquery.log (Specify the log file location, can be empty, the system will give a default file Host_name-slow.log)long_query_time=2 (record over time, default is 10s)

used methods of use: (1) Direct analysis of slow query files:Pt-query-digest Slow.log > Slow_report.log(2) Analysis of queries within the last 1 hours:Pt-query-digest--since=1h slow.log > Slow_report.log(3) Analysis of queries within a specified time range:Pt-query-digest s

Recently found a very useful MySQL slow query log visualization tools, online can also find a lot of information, here combined with their own actual situation to reorganize.1. Experimental environment 1.1 system environment:操作系统：CentOS 6.5 64位主机地址：10.0.0.26主机名：mysql01mysql版本：mysql-5.6.361.2 Visualization Software Environment:http环境：LAMP可视化软件：Anemometer-master.zi

Lab Environment:OS X EI Captian + MySQL 5.7I. Configure MySQL to automatically record slow query logView variables, i.e. configuration informationshow (global) variables like '%slow_query%'To modify a variable:set global 变量名 = 值Variables related to the slow query log:是否开启慢查询

Title, to turn on MySQL's slow query log, you can set two items in the MySQL configuration file under [mysqld]:Log-slow-queries = D:/soft/phpnow/mysql-5.1.50/test.logLong_query_time = 1Log-slow-queries represents the

MySQL has a function is log down to run the slower SQL statement, the default is not this log, in order to open this function, to modify the my.cnf or in the MySQL boot when the add some parameters. If you modify inside the MY.CNF, add the following lines long_query_time = 1 log-slow-queries = /var/youpath/slow.log

Configure mariadb slow query log Be sure to configure the full path (including file name) Otherwise you cannot restart mariadb (/usr/local/mysql/data/slow.log) The file path for the configuration mariadb Log audit can be without a filename, but this is not possible. 10:22:29 system Mariadb-prepare-db-dir:database

Recently in the use of Elkstack to the System log analysis, on the internet also saw the use of logstash cases, but found that can not be resolved properly, and then re-take the time to do regular calculations, the main code is as follows:input{file{type=> "Mysql-slow" path=> "/var/lib/mysql/slow.log" start_ position=>beginning sincedb_write_interval=>0codec=> multiline{pattern=> "^#[emailprotected]:" nega

General log:The geleral log records every query or command received by the server. General log records the query or command, whether it is correct or even contains a syntax error, the record format is {time, ID, command, argument }. It is also because the MySQL server needs to constantly record logs, enabling General

. 2 6.02 Chinese Version DB query analyzer as an Example The following uses the Chinese version of the "universal database query analyzer" database query analyzer 6.02 as an example to access the DB2 database based on AIX. Ope

Server Files: EXCEL file Client tool: DB Query Analyzer 5.03. First I create a ODBC Data Source 'txt _ CSV_ODBC 'according to EXCEL file by DB Query Analyzer. click menu item tools à ODBC Data Source Manager to run the windows ODBC Data Source Administrator form. this is shown in Figure 1 and Figure 2. Figure 1 cre

partial database backup and file backup. The new restore statement allows you to use full or partial database backup and record file backup for restoration. These replace the dump and load statements in earlier versions of SQL Server. For a complete list of new statements and options for SQL Server 7.0 and SQL Server 2000, see the topic "new and enhanced functions of transact-SQL" in online books.How to Use T-SQL　In addition to using T-SQL to design your applications (this topic is beyond the s

|+-----------------+-----------+| long_query_time | 10.000000 |+-----------------+-----------+ 2. Setting Method Method 1: global variable settings Setslow_query_logSet global variables to "ON" status mysql> set global slow_query_log='ON'; Set the location for storing slow query logs mysql> set global slow_query_log_file='/usr/local/mysql/data/slow.log'; Query

Php Performance Analysis-Usage Analysis of php-fpm slow execution log slow log, php-fpmslow This article describes the usage of php-fpm slow execution log slow

Dex introduces mongodb index and query analyzer dex. It is a MongoDB performance adjustment tool that compares MongoDB log files and index entries and provides index recommendations. Currently, you must provide a URI to connect to the database. Dex only recommends full indexes, not partial indexes. Windows platforms are not supported. Dex working principle dex is