31. pt-variable-advisor

pt-variable-advisor h=192.168.100.101,P=3306,u=admin,p=admin

mysqladmin var>/root/test/pt-variables.txt
pt-variable-advisor --source-of-variables /root/test/pt-variables.txt

# WARN delay_key_write: MyISAM index blocks are never flushed until necessary.

# WARN innodb_lock_wait_timeout: This option has an unusually long value, which can cause system overload if locks are not being released.

# WARN innodb_log_buffer_size: The InnoDB log buffer size generally should not be set larger than 16MB.

# NOTE innodb_max_dirty_pages_pct: The innodb_max_dirty_pages_pct is lower than the default.

# NOTE read_buffer_size-1: The read_buffer_size variable should generally be left at its default unless an expert determines it is necessary to change it.

# NOTE read_rnd_buffer_size-1: The read_rnd_buffer_size variable should generally be left at its default unless an expert determines it is necessary to change it.

# NOTE sort_buffer_size-1: The sort_buffer_size variable should generally be left at its default unless an expert determines it is necessary to change it.

# NOTE tx_isolation-1: This server's transaction isolation level is non-default.

# NOTE innodb_data_file_path: Auto-extending InnoDB files can consume a lot of disk space that is very difficult to reclaim later.

# WARN myisam_recover_options: myisam_recover_options should be set to some value such as BACKUP,FORCE to ensure that table corruption is noticed.