Found that there is a tool mysqlsla, analysis query log than Mysqldumpslow analysis will be more clear!Install Mysqlsla:Download mysqlsla-2.03.tar.gz[Email protected] export]# TAR-XVF mysqlsla-2.03.tar.gz[email protected] export]# Yum install *dbi*[
See if the current server is turned on slow query: 1, Quick way, run SQL statement show VARIABLES like "%slow%" 2, go directly to my.conf. Configuration in my.conf (added below [mysqld]) [mysqld] Log-slow-queries =/usr/local/mysql/var/
Found that there is a tool mysqlsla, analysis query log than Mysqldumpslow analysis will be more clear!Install Mysqlsla:Download mysqlsla-2.03.tar.gz[Email protected] export]# TAR-XVF mysqlsla-2.03.tar.gz[email protected] export]# Yum install
The query is the most problematic database response. Most databases now provide the means to help with performance analysis. Oracle, for example, will help you find the slow statements directly and provide an optimization solution. In MySQL, you
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 log book storage location,
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
As we all know, in the case of large traffic, can add node or change the schema can effectively alleviate the database pressure, but all the origin, all from a single MySQL start. The following summarizes some of the experiences that have been used
Mysql slow query log (slow_query_log_file) Switch slow_query_log_file the log becomes very large and it is inconvenient to analyze its input items. We want to generate a slow_query_log_file file every day and analyze the log file every day. How to
MySQL slow query log analysis bitsCN.com
The most basic is mysql's mysqlslowdump
Easy to use:
Mysqldumpslow-s c-t 20 host-slow.log
Parameters:
1.-s, sorting, c, t, l, r, and ac, at, al, and ar are sorted by query times, time, lock time, and
OPS needs to record the "slow action" commands in the master Redis and then find the relevant business party, otherwise, blockIt's not funny anymore. The relevant commands are then found directly in the Redis Handbook.SLOWLOG subcommand [argument]
A script for slow query log tracking based on pt-query-digest
Percona-toolkit is called MySQL DBA's "Switzerland ***", and its strength is self-evident. The slow query and analysis tool "pt-query-digest" provides many additional attributes, such as
First, sortSort Sorting keys for a numeric value1. Alpha sorts the keys of the string type2, Asc/descRedis Default Ascending sort ASCDesc is the opposite of3. BySort by weight. 127.0.0.1:6379> Sadd usres"VIP" "Ordinary" "Visotor"(integer)3127.0.0.1:
View status show VARIABLES like '%slow_query_log% 'Turn on set global show_query_log=1 (fail after reboot)Permanent effect Modification MY.CNF joinSlow_query_log=1Show_query_log_file=/var/lib/mysql/at-slow.logModify Time Threshold (default is
As we all know, in the case of large traffic, can add node or change the schema can effectively alleviate the database pressure, but all the origin, all from a single MySQL start. The following summarizes some of the experiences that have been used
[Warning] '--log_slow_queries ' is deprecated and would be removed in a future release. Please use '--slow_query_log '/'--slow_query_log_file ' instead.1. Modify the configuration
#此处以收集mysql慢查询日志为准 to add different field values depending on the file nameInput {file{Path="/data/order-slave-slow.log"type="Mysql-slow-log"start_position="beginning"codec=Multiline {pattern="^# [email protected]:"negate=true What=Previous}}
The slow_query_log_file log becomes very large and it is inconvenient to analyze its input items. We want to generate a slow_query_log_file file every day and analyze this file every day.
The slow_query_log_file log becomes very large and it is
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