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Adding advice for buffer_pool_size_instances variables for 5.6.6+ mysql version

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Jean-Marie RENOUARD 2015-06-15 16:22:51 +02:00
parent c8043c2965
commit e231e21d1e
1 changed files with 23 additions and 3 deletions
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26
mysqltuner.pl
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@ -1,5 +1,5 @@
#!/usr/bin/perl -w #!/usr/bin/perl -w
# mysqltuner.pl - Version 1.4.2 # mysqltuner.pl - Version 1.4.3
# High Performance MySQL Tuning Script # High Performance MySQL Tuning Script
# Copyright (C) 2006-2014 Major Hayden - major@mhtx.net # Copyright (C) 2006-2014 Major Hayden - major@mhtx.net
# #
@ -42,7 +42,7 @@ use Getopt::Long;
use File::Basename; use File::Basename;
use Cwd 'abs_path'; use Cwd 'abs_path';
# Set up a few variables for use in the script # Set up a few variables for use in the script
my $tunerversion = "1.4.2"; my $tunerversion = "1.4.3";
my (@adjvars, @generalrec); my (@adjvars, @generalrec);
# Set defaults # Set defaults
@ -1136,7 +1136,27 @@ sub mysql_stats {
badprint "InnoDB log waits: ".$mystat{'Innodb_log_waits'}; badprint "InnoDB log waits: ".$mystat{'Innodb_log_waits'};
push(@adjvars,"innodb_log_buffer_size (>= ".hr_bytes_rnd($myvar{'innodb_log_buffer_size'}).")"); push(@adjvars,"innodb_log_buffer_size (>= ".hr_bytes_rnd($myvar{'innodb_log_buffer_size'}).")");
} else { } else {
goodprint "InnoDB log waits: ".$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.";
}
} }
} }
} }