diff --git a/README.md b/README.md index c2ff19d3c..5e2cc848c 100644 --- a/README.md +++ b/README.md @@ -61,6 +61,9 @@ that you trust. **Always** test your changes on staging environments, and always keep in mind that improvements in one area can **negatively affect** MySQL in other areas. +It's **also important** to wait at least a day of uptime to get accurated results. In fact, running +**mysqltuner** on a fresh restarted server is completely useless. + **Seriously - please review the FAQ section below.** @@ -96,13 +99,13 @@ Optional Sysschema installation for MySQL 5.6 Sysschema is installed by default under MySQL 5.7 and MySQL 8 from Oracle. By default, on MySQL 5.6/5.7/8, performance schema is enabled by default. For previous 5.6 version, you can follow this command to create a new database sys containing very useful view on Performance schema: - + curl "https://codeload.github.com/mysql/mysql-sys/zip/master" > sysschema.zip # check zip file unzip -l sysschema.zip unzip sysschema.zip cd mysql-sys-master - mysql -uroot -p < sys_56.sql + mysql -uroot -p < sys_56.sql Optional Performance schema and Sysschema installation for MariaDB 10.x -- @@ -114,7 +117,7 @@ By default, on MariaDB, performance schema is disabled by default. consider acti performance_schema = on You can follow this command to create a new database sys containing very useful view on Performance schema: - + curl "https://codeload.github.com/good-dba/mariadb-sys/zip/master" > mariadb-sys.zip # check zip file unzip -l mariadb-sys.zip @@ -127,7 +130,7 @@ Performance tips Metadata statistic updates can impact strongly performance of database servers and MySQLTuner. Be sure that innodb_stats_on_metadata is disabled. - set global innodb_stats_on_metadata = 0; + set global innodb_stats_on_metadata = 0; Specific usage -- @@ -152,7 +155,7 @@ __Usage:__ Enable CVE vulnerabilities check for your MariaDB or MySQL version perl mysqltuner.pl --cvefile=vulnerabilities.csv -__Usage:__ Write your result in a file with information displayed +__Usage:__ Write your result in a file with information displayed perl mysqltuner.pl --outputfile /tmp/result_mysqltuner.txt