ourdelta-developers team mailing list archive

[Arjen Lentz <arjen@xxxxxxxxxxxxxxxx>]

In OurDelta builds from patchset d7.
(only the mysqld_safe fix in the end, the my_print_defaults doesn't appear to be used elsewhere relevant so this is sufficient)

** Changed in: ourdelta
     Assignee: (unassigned) => Erik Ljungstrom (erik-ibiblio)

-- 
mysqld_safe does not honour underscores in options like mysqld does
https://bugs.launchpad.net/bugs/290190
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Status in OurDelta - Builds for MySQL: Fix Released

Bug description:
mysqld accepts both dashes and underscores in server options, however mysqld_safe does not.
Since it's unclear from the user's perspective (and they shouldn't NEED to know!) which options get processed only by mysqld_safe, this can mean that they use an option in the wrong way but don't notice it.
Example... open_files_limit
When written like that, it mysqld_safe will not recognise it and thus not call ulimit -n
...
The option WILL be feed to mysqld so it shows the "correct" number in SHOW GLOBAL VARIABLES. Except, since ulimit wasn't called, it's not actually in effect!

See http://bugs.mysql.com/40368