To get the latest copy, head over to the download page! Here’s the changes from 0.8.0 to 0.8.5 for MySQLTuner:
Fixed a copy/paste bug
There was a bug in 0.8.0 that displayed “OK” in red rather than showing “!!”. It affected the informational “–” outputs as well. Thanks to Nils Breunese for pointing out that confusing bug!
Fixed a data length calculation bug with MySQL 4.0
If the script was run against MySQL 4.0 servers, it would return the Max_data_length rather than Data_length, and this was returning some horribly incorrect results for the size of tables in use with certain storage engines.
Fixed a key buffer calculation bug with MySQL 4.0
It’s not possible to ask a MySQL 4.0 server about how much of the key buffer is in use, so the functionality for MySQL 4.0 now matches 3.23 for key buffer calculations.
Added a notification for well-optimized servers
For situations where MySQLTuner can’t make any recommendations for performance increases, it actually says so now.
Version bump to 0.8.5
It’s getting close to a full 1.0 release!












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