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Completed long explanation portion for slow query log section.

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Created 'explainonly' command line argument for long explanations only.
Adjusted memory usage long explanation.
This commit is contained in:
Major Hayden 2007-06-06 15:14:06 +00:00
parent be69a0063a
commit a4f7c5bbe0
1 changed files with 25 additions and 2 deletions
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25
mysqltuner.pl
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@ -13,6 +13,7 @@ my %opt = (
"noinfo" => 0, "noinfo" => 0,
"notitle" => 0, "notitle" => 0,
"noexplain" => 0, "noexplain" => 0,
"explainonly" => 0,
); );
# Gather the options from the command line # Gather the options from the command line
@ -22,6 +23,7 @@ GetOptions(\%opt,
'noinfo', 'noinfo',
'notitle', 'notitle',
'noexplain', 'noexplain',
'explainonly',
'help', 'help',
); );
@ -42,6 +44,7 @@ sub usage {
" --noinfo Remove informational responses\n". " --noinfo Remove informational responses\n".
" --notitle Remove section title headers\n". " --notitle Remove section title headers\n".
" --noexplain Remove verbose explanations\n". " --noexplain Remove verbose explanations\n".
" --explainonly Provide only long text explanations, no bullets/titles\n".
"\n"; "\n";
exit; exit;
} }
@ -52,6 +55,13 @@ my $good = "[\e[00;32mOK\e[00m]";
my $bad = "[\e[00;31m!!\e[00m]"; my $bad = "[\e[00;31m!!\e[00m]";
my $info = "[\e[00;34m--\e[00m]"; my $info = "[\e[00;34m--\e[00m]";
if ($opt{explainonly} == 1) {
$opt{nogood} = 1;
$opt{noinfo} = 1;
$opt{nobad} = 1;
$opt{notitle} = 1;
}
sub goodprint { sub goodprint {
if ($opt{nogood} == 1) { return 0; } if ($opt{nogood} == 1) { return 0; }
my $text = shift; my $text = shift;
@ -80,7 +90,11 @@ my $exptext;
sub explainprint { sub explainprint {
if ($opt{noexplain} == 1) { return 0; } if ($opt{noexplain} == 1) { return 0; }
my $text = shift; my $text = shift;
if ($opt{explainonly} == 0) {
print "\n".wrap("","",$text)."\n\n"; print "\n".wrap("","",$text)."\n\n";
} else {
print "\n".wrap("","",$text)."\n";
}
} }
my ($physical_memory,$swap_memory,$duflags); my ($physical_memory,$swap_memory,$duflags);
@ -327,7 +341,7 @@ sub check_memory {
"your server. If you find that this script suggests increasing buffers in later tests, you have additional memory ". "your server. If you find that this script suggests increasing buffers in later tests, you have additional memory ".
"available for the expansion of those buffers."; "available for the expansion of those buffers.";
} }
explainprint "The above calculations show MySQL's memory usage at full capacity. ". explainprint "This script's calculations show MySQL's memory usage at full capacity. ".
"This means that all connections are at their maximum with all buffers being fully used. ".$exptext; "This means that all connections are at their maximum with all buffers being fully used. ".$exptext;
} }
@ -349,16 +363,25 @@ sub check_slow_queries {
if ($myvar{'log_slow_queries'} =~ /ON/) { if ($myvar{'log_slow_queries'} =~ /ON/) {
if ($myvar{'long_query_time'} <= 10) { if ($myvar{'long_query_time'} <= 10) {
goodprint "Slow query log is enabled, and long_query_time is reasonable ($myvar{'long_query_time'} sec)\n"; goodprint "Slow query log is enabled, and long_query_time is reasonable ($myvar{'long_query_time'} sec)\n";
$exptext = "Your slow query settings are already at an optimal level.";
} else { } else {
print $bad. " Slow query log is enabled, but long_query_time is too long ($myvar{'long_query_time'} sec)\n"; print $bad. " Slow query log is enabled, but long_query_time is too long ($myvar{'long_query_time'} sec)\n";
$exptext = "Although your slow query log is enabled, a query must exceed $myvar{'long_query_time'} seconds ".
"to appear in the log which is much too long. Reduce the long_query_time to 10 or less to make your ".
"slow query log more effective.";
} }
} else { } else {
if ($myvar{'long_query_time'} <= 10) { if ($myvar{'long_query_time'} <= 10) {
badprint "Slow query log is disabled, but long_query_time is reasonable ($myvar{'long_query_time'} sec)\n"; badprint "Slow query log is disabled, but long_query_time is reasonable ($myvar{'long_query_time'} sec)\n";
$exptext = "While your long_query_time is set to a value less than 10, your slow query log is currently ".
"disabled. This will prevent you from auditing your slow queries.";
} else { } else {
badprint "Slow query log is disabled, and long_query_time is too long ($myvar{'long_query_time'} sec)\n"; badprint "Slow query log is disabled, and long_query_time is too long ($myvar{'long_query_time'} sec)\n";
$exptext = "To audit your server's slow queries, you should enable the slow query log and reduce your ".
"long_query_time to 10 seconds or less.";
} }
} }
explainprint "The slow query log will allow you to see which queries are taking too long to execute. ".$exptext;
} }
sub check_connections { sub check_connections {