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Merge pull request #69 from jmrenouard/master

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Adding advice for innodb_buffer_pool_instances for mysql 5.6.6+ version
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Major Hayden 2015-06-15 09:30:27 -05:00
commit c3d99c9348
2 changed files with 26 additions and 4 deletions
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4
README.md
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@ -7,6 +7,8 @@ Compatibility:
* MySQL 3.23, 4.0, 4.1, 5.0, 5.1 (full support)
* MySQL 5.4 (not fully tested, partially supported)
* MySQL 5.5 (partial support)
* MySQL 5.6 (partial support)
* MySQL 6.0 (partial support)
* MariaDB 10.x (partial support)
* Perl 5.6 or later (with [perl-doc](http://search.cpan.org/~dapm/perl-5.14.4/pod/perldoc.pod) package)
@ -29,7 +31,7 @@ MySQL in other areas.
Download/Installation
--
You can download the entire repository by using 'git clone' followed by the cloning URL above. The simplest and shortest method is:
You can download the entire repository by using 'git clone' followed by the cloning URL above. The simplest and shortest method is:
wget http://mysqltuner.pl/ -O mysqltuner.pl
perl mysqltuner.pl

26
mysqltuner.pl
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@ -1,5 +1,5 @@
#!/usr/bin/perl -w
# mysqltuner.pl - Version 1.4.2
# mysqltuner.pl - Version 1.4.3
# High Performance MySQL Tuning Script
# Copyright (C) 2006-2014 Major Hayden - major@mhtx.net
#
@ -42,7 +42,7 @@ use Getopt::Long;
use File::Basename;
use Cwd 'abs_path';
# Set up a few variables for use in the script
my $tunerversion = "1.4.2";
my $tunerversion = "1.4.3";
my (@adjvars, @generalrec);
# Set defaults
@ -1136,8 +1136,28 @@ sub mysql_stats {
badprint "InnoDB log waits: ".$mystat{'Innodb_log_waits'};
push(@adjvars,"innodb_log_buffer_size (>= ".hr_bytes_rnd($myvar{'innodb_log_buffer_size'}).")");
} else {
goodprint "InnoDB log waits: ".$mystat{'Innodb_log_waits'};
goodprint "InnoDB log waits: ".$mystat{'Innodb_log_waits'}."\n";
}
if (defined($myvar{'innodb_buffer_pool_instances'})) {
infoprint "MySQL version: " .$myvar{'version'}." is greater than MySQL 5.6.6(innodb_buffer_pool_instances is present)\n";
if ($myvar{'innodb_buffer_pool_instances'} > 64) {
badprint "InnoDB buffer pool instances must be lower than 64.\n";
push(@adjvars,"innodb_buffer_pool_instances must be lower than 64.");
} else {
goodprint "InnoDB buffer pool instances is lower than 64.\n";
}
infoprint "Buffer Pool Size: ".hr_bytes_rnd($myvar{'innodb_buffer_pool_size'})."\n";
infoprint "Buffer Pool Inst: $myvar{'innodb_buffer_pool_instances'}\n";
if ($myvar{'innodb_buffer_pool_size'} > 1024*1024*1024
and (
($myvar{'innodb_buffer_pool_size'}/$myvar{'innodb_buffer_pool_instances'}) < 1024*1024*924
or ($myvar{'innodb_buffer_pool_size'}/$myvar{'innodb_buffer_pool_instances'}) > 1024*1024*1124 ) ) {
badprint "InnoDB buffer pool is greater than 1Go and each InnoDB buffer pool instance must manage 900Mo to 1.1Go buffer pool size";
push(@adjvars,"innodb_buffer_pool_instances must be calculated with innodb_buffer_pool_size / 1Go ");
} else {
goodprint "InnoDB buffer pool instances is configurated for managing around 1Go Buffer pool size.";
}
}
}
}