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Although through Nginx Accesslog can record user access to an interface or the time spent on a webpage, but can not be clearly traced to the specific location or the function is slow, so through the php-fpm slow log, Slowlog setting allows us to see which PHP processes are too slow to cause problems with the sitePhp-fpm.conf has a parameter in the configuration f

Recently, a development team complained that the mysqlcluster on our platform was not good and always reported mysql heartbeatError. after analyzing the logs they collected, they did not find any network problems between mysqlcluster nodes, however, I found a very interesting phenomenon. Recently, a development team in mysql's sl complained that the mysql cluster included in our platform was not good and always reported the "heartbeat Error" of mysql. I analyzed the logs they collected and found

First, IntroductionPt-query-digest is a tool for analyzing slow queries for MySQL, which analyzes Binlog, general log, Slowlog, It can also be analyzed using showprocesslist or MySQL protocol data crawled by tcpdump. The analysis results can be exported to a file, the analysis process is the parameters of the query statement, and then the parameterized query after the grouping statistics, statistics of the query execution time, frequency, percentage,

MySQL enables the log-slow-queries Method for slow query, logslowqueries A page of a common WEB site often needs to query n SQL statements to get the PAGE result. When the Website access speed is slow and the front-end has done a lot of optimization work, searching for database bottlenecks is also an important part of WEB optimization.MySQL provides a

Label:MySQL's "slow query" refers to an SQL statement that exceeds the maximum allowable query time ( long_query_time ), and the "unused index" query, by definition, is the SQL statement that the query statement does not use to the index.Slow query configuration and useAdd the following parameters to the Msyqld startup configuration file or command line parameters Long_query_time=1 Log-slow-qu

Slow webpage access how to find out why the Internet access speed is slow Source: China IT lab Author: Qs Comment font size: Large | Medium | Small In network management, network administrators often encounter slow access speeds between hosts in the LAN and web pages through Browsers (usually Internet access. 1. webpage access In network managem

1. Install Mysqlsla The code is as follows Copy Code wget http://hackmysql.com/scripts/mysqlsla-2.03.tar.gzTar zvxf mysqlsla-2.03.tar.gzCD mysqlsla-2.03Perl makefile.plMakeMake install Perl makefile.pl will complain, according to the error content Baidu has relevant information, nothing but yum install some things 2. Using Mysqlsla syntax The code is as follows Copy Code Slow log:mys

1, the slow log status; Mysql> Show variables like '%slow% ';+---------------------+------------------------------------------+| variable_name | Value |+---------------------+------------------------------------------+| log_slow_queries | On || Slow_launch_time | 2 || Slow_query_log | On || Slow_query_log_file | /mysqllog/slow_log/slow_queries_3306.log |+---------------------+------------------------------

A common web site often need to query n SQL statements to get the results of the page, when the Web site access speed is slow and the front-end done a lot of optimization work, the database bottleneck of the search is also an important part of the Web optimization.MySQL provides a slow query logging function, you can query the SQL statement time is greater than the number of seconds to write to the

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 ...1. View local database slow log files first650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/4B/F1/wKioL1

Slow query of MySQL-delete slow query logs I. environment OS: CentOS release 5.8 (64-bit) DB: MySQL5.5.17 II. operations Run the rm-f command to delete the slow query log. III. problems The slow query log is not automatically generated. (if there is a backup, it is difficult to copy it back) IV. Solution Log

Mysql (slow-query) quick method for enabling slow log query bitsCN.com How to quickly enable slow log query in mysql (slow-query) Mysql has a function to log down and run slow SQL statements. by default, this log does not exist. Open my. ini, find [mysql], and add Long_q

MySQL slow query: enabling slow query and mysql Query 1. What is the use of slow queries? It records all SQL statements that have been executed longer than long_query_time, and helps you find slow SQL statements to optimize these SQL statements. Ii. parameter description slow_query_logEnabled status of

One, slow query log configuration Turn on the slow query log to configure the sample: /etc/mysql/my.cnf[Mysqld]Log-slow-queries Add the above configuration entry in the MY.CNF configuration file and restart the MySQL service, when the MySQL slow query function takes effect. Slow