[mythtv-users] Must mythbackend be running when executing optimize_mythdb.pl and/or mythlink.pl?
jam at tigger.ws
Sat Apr 7 01:20:04 UTC 2012
On 07/04/2012, at 6:35 AM, mythtv-users-request at mythtv.org wrote:
> Also, the only reason we don't automatically run optimize_mythdb.pl type
> functionality (repair/analyze/optimize)--we already have code in MythTV
> to do it all--is because if it were being run and the MySQL server
> crashes (mysqld crash/power outage/full file system/...) during a table
> repair, it's critical that a repair is run, again, after restarting the
> server and before any client attempts to read any data from the table
> that was being repaired--otherwise, you could lose all of the data in
> the table. Therefore, since we can't guarantee that we'll be able to
> run the repair before anyone else reads from the table before, and
> because even doing a quick check to see if tables are good before
> starting the master backend slowed startup sufficiently, on some
> systems, that we had to remove the check. That means
> repair/analyze/optimize are left to the user/"db admin" for the system.
> And, if there's a database crash, you should probably shut down all
> MythTV applications, then do an optimize_mythdb.pl or mysqlcheck -r
> before restarting MythTV (really, that's a good idea any time there's a
> MySQL crash, even if you weren't running a repair at the time).
> (Unfortunately, currently optmize_mythdb.pl requires a working settings
> table, so if your settings table is crashed, you'll need to run
> mysqlcheck -r directly--and figure out all the right command-line
> arguments. I'm hoping to fix that, sometime.)
OK the proverbial dumb question:
I've been using myth for *years* and have never run optimize_mythdb.pl !!
Dutifully I tried:
[sandypit] /home/jam/mythtv-0.24.2/contrib % maintenance/optimize_mythdb.pl
Can't locate MythTV.pm in @INC
and cpan search showed nothing
(but there are a couple of candidates in the directory)
why would I run optimize_mythdb.pl ( know that is a kick-me question :-) )
Where would I put MythTV,pm ?
[sandypit] /home/jam/mythtv-0.24.2/contrib % ls /usr/lib/perl5/
5.14.2/ site_perl/ vendor_perl/
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