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i want to increase my innodb_buffer_pool_size value to get some more performance and when i try, my select queries arises error such as "Incorrect information file in .."

i'm just adding

innodb_buffer_pool_size = 1G 
innodb_log_file_size = 256M

value in my my.cnf then restart mysql service. how can i prevent these errors? Thanks for help!

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Please add relevant info from mysql's error log file. – Paul Jan 8 '11 at 19:24
up vote 1 down vote accepted

when you change the innodb_buffer_pool_size size you need to remove the ib_logfile's usually located in /var/lib/mysql/ib_logfile0 /var/lib/mysql/ib_logfile2 etc. This way mysql can regenerate the pool files when you restart it.

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We need more information so we can help you. Pasting what is inside the MySQL error log (usually /var/log/mysqld.log) is a great start. Also how much RAM do you have in your system? Also pasting your current /etc/my.cnf settings will help as well.

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