Re: Problem with De-Fragment table
Posted by: Rick James
Date: October 02, 2015 10:10PM

Fragmentation is a feature, not a "problem".

If all BTree blocks is 100% full, then every INSERT will cause a costly block split, and lead to blocks that are only 50% full.

Etc.
Etc.

Do not bother OPTIMIZEing InnoDB tables.

http://forums.mysql.com/read.php?35,634129 (when is the proper time to execute optimize table command ?)
http://forums.mysql.com/read.php?20,627124 (How can I know the proper time of analyze time)
http://forums.mysql.com/read.php?20,619520 (fragmentation in innodb index)
http://forums.mysql.com/read.php?24,634146 (Deleted Records and Optimize)
http://forums.mysql.com/read.php?35,618481 (Execute table optimization concurrently)
http://forums.mysql.com/read.php?10,635519 (mysql server crashes on archive table)
http://forums.mysql.com/read.php?35,635342 (Problem with De-Fragment table)

Shall I beat the question to death some more?

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September 26, 2015 04:24AM
Re: Problem with De-Fragment table
October 02, 2015 10:10PM


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