I got the message like this:
Variables to adjust:
table_cache (> 524288)

Thanks!

The fastest way to accomplish things on linux, is to find the best people. For instance it was purported that the whole TCPIP stack we use today as the foundation of the net was coded by bill joy in a week.. So congrats on landing a job with such a sweet company. Good luck!

I’d be happy to take it over. I currently write Kontrollbase ( http://kontrollsoft.com/software-kontrollbase ), am a 5.0 CMDBA, and use Perl all the time – actually all of the backend code for Kbase is written in perl. If you’d like me to maintain it just send me an email: mreid at kontrollsoft. c o m

I was searching the web for tools related to MySQL performance tuning and just stumbled upon your article.

I’m fairly new to the MySQL tuning business (I have less than 5 years of experience), but I’m a seasoned Perl developer with some contributions to CPAN.

I would like to join the take-over effort for this script.

Please let me know the current situation and where / how can I have access to the script.

Good luck with your new career. :)

Cheers
–
LMC

I’ve been working on a GPL’d automated MySQL tuner / DBA replacement tool that uses mysqltuner, log parsing, etc and could definitely maintain and improve mysqltuner as well.

I’ve noted that printenv isn’t available everywhere, and think changing line 299 in the github version from:

my $userpath = `printenv HOME`

to

my $userpath = $ENV{HOME}

or

my $userpath = `echo ~`

are good, or at least functional, fixes.

Using the File::HomeDir module works as well, but that module isn’t installed everywhere so I consider it to be a lower quality fix. I see the forked Pythian version has addressed this with:

my $userpath = `ls -d ~ 2>/dev/null`

I’m not a Pythian fan (but have nothing at all against Sheeri, I think Sheeri does good work for the community) and don’t want to contribute to the forked version for fear of having GPL’d work included by Pythian in a proprietary product or expensive service, or see a crippled but free ‘community’ version of mysqltuner coexist with a full featured but expensive ‘enterprise’ version. mysqltuner should always be 100% free, never crippled.

I’ve had enough interaction with Pythian at my present position to fuel my fears. Trying to download software from their site drives home the fact that they are for-profit and looking for revenue in all they do (not Sheeri but the business people at Pythian).

Anyway, have a good one & keep doing the needful. Give me a shout if you head up to ATX and want to chillax or whatever.

Ensure that the columns that you are using to join tables together are properly indexed. For example, if you’re joining columnA from one table with columnB from another table like this:

LEFT JOIN tableA ON tableA.columnA = tableB.columnB

You need to make sure both of those referenced columns are indexed. Also, make sure they’re the same type – don’t try to join a VARCHAR up with an INT.

[!!] Joins performed without indexes: 31

I was add join_buffer_size = 8 but i am still getting this …

Thank you

J