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This article is about how to use Anemometer in Mysql. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Preparation conditions:

1.MySQL enables slow query

two。 Install Percona Toolkit

Rpm-qa | grep percona

Percona-toolkit-2.2.7-1

3. Download Anemometer

Official website: https://github.com/box/Anemometer

4. Prepare php related modules (or yum)

5. Start the apache service

Rpm-qa | grep http

Httpd-2.2.3-45.el5

Installation:

1. Install Percona Toolkit:

Rpm-ivh percona-toolkit-2.2.7-1.noarch.rpm

two。 Extract the Anemometer package, rename it to anemometer, and move it to / var/www/html (apache default path)

Pwd

/ var/www/html/anemometer

3. Install php related modules:

Rpm-qa | grep php

Php53-common-5.3.3-1.el5

Php53-bcmath-5.3.3-1.el5

Php53-mysql-5.3.3-1.el5

Php53-dba-5.3.3-1.el5

Php53-cli-5.3.3-1.el5

Php53-gd-5.3.3-1.el5

Php53-5.3.3-1.el5

Php53-pdo-5.3.3-1.el5

NOTE:

The PHP version should be greater than 5.3, otherwise an error will be reported, such as:

Anemometer requires PHP 5.3 or newer. You have 5.1.6

In addition, bcmath is required.

Rpm-qa | grep bcmath

Php53-bcmath-5.3.3-1.el5

4. Execute the setup script to create the user:

Mysql-uroot-pxxx

Grant all on slow_query_log.* to 'anemometer'@'%' identified by' test'

Mysql > grant select on *. * to 'anemometer'@'%'

Mysql > grant all on slow_query_log.* to 'anemometer'@'localhost'

Mysql > grant select on *. * to 'anemometer'@'localhost'

5. After pt-query-digest analysis, the slow query log is stored in the database:

Statements with pt version less than 2.2:

Pt-query-digest-user=anemometer-password=test\

-- review hobb.example.com.During records queryreviewing logrecoveryglobalquestions queryreview\

-- review-history hobb.example.com.During records queryrecording logrecoveryglobaldatabases queryrecording walled history\

-- no-report-- limit=0%\

-- filter= "\ $event- > {Bytes} = length (\ $event- > {arg}) and\ $event- > {hostname} =\" $HOSTNAME\ ""\

/ root/test/localhost-slow.log

Statements with pt version greater than version 2.2:

Pt-query-digest-- user=anemometer-- password=test-- review h=hd-119-186There is a review of the whole globalcalendar queryreview-- history h=hd-119-186data queryreview-- history h=hd-119-186Doblesqueryreview-- no-report-- limit=0%-- filter= "\ $event- > {Bytes} = length (\ $event- > {arg}) and\ $event- > {hostname} =\ $HOSTNAME\" / root/test/localhost-slow.log

After performing this operation, the slow log will be analyzed and stored in mysql's slow_query_log database.

NOTE:

Remember to ensure the access to the corresponding 'user' @ 'host'

6. Modify the configuration information of the visual interface:

Cd / var/www/html/anemometer/conf

Cp sample.config.inc.php config.inc.php

Vi config.inc.php

And:

NOTE:

The hostname must be modified correctly and cannot be left as localhost, otherwise the final interface will be inaccessible.

7. Finally, local access through IP:

Http://192.168.44.130/anemometer

After query, you can get the results of the slow query log:

Supplement: how to monitor multiple databases

[root@RZ-SI1-DB-14 conf] # ll

Total 40

-rwxr-xr-x 1 root root 15504 Oct 12 14:51 config.inc.php # the new version does not need to modify the configuration, just the following datasource

-rwxrwxrwx 1 root root 314 Oct 12 14:54 datasource_si1.inc.php

-rwxr-xr-x 1 root root 314 Oct 12 15:05 datasource_st1.inc.php-configure multiple datasource,si1 st1 machines to import install.sql and pt-query-digest slow logs respectively

-rwxrwxrwx 1 root root 0 Oct 13 2016 index.html

-rwxrwxrwx 1 root root 15487 Oct 13 2016 sample.config.inc.php

[root@RZ-SI1-DB-14 conf] # more datasource_si1.inc.php

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