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Adding experimental option avoiding runtime errors #762

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merged 3 commits into from
Feb 8, 2024
Merged

Adding experimental option avoiding runtime errors #762

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30e61d9
Generate 2.5.3 sub version at 2024-02-08T22:15:50+01:00
jmrenouard Feb 8, 2024
ffd7aca
Adding eperimental feature with --experiemental
jmrenouard Feb 8, 2024
da90482
Merge branch 'master' into master
jmrenouard Feb 8, 2024
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2 changes: 1 addition & 1 deletion USAGE.md
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
# NAME

MySQLTuner 2.5.2 - MySQL High Performance Tuning Script
MySQLTuner 2.5.3 - MySQL High Performance Tuning Script

# IMPORTANT USAGE GUIDELINES

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48 changes: 29 additions & 19 deletions mysqltuner.pl
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@@ -1,5 +1,5 @@
#!/usr/bin/perl
# mysqltuner.pl - Version 2.5.2
#!env perl
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removing the full path breaks the shebang when using bash

$ ./mysqltuner.pl --help
-bash: ./mysqltuner.pl: env: bad interpreter: No such file or directory

$ bash --version
GNU bash, version 5.1.16(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

$ which env
/usr/bin/env

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why do we make such change?

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# mysqltuner.pl - Version 2.5.3
# High Performance MySQL Tuning Script
# Copyright (C) 2015-2023 Jean-Marie Renouard - jmrenouard@gmail.com
# Copyright (C) 2006-2023 Major Hayden - major@mhtx.net
Expand Down Expand Up @@ -57,7 +57,7 @@ package main;
#use Env;

# Set up a few variables for use in the script
my $tunerversion = "2.5.2";
my $tunerversion = "2.5.3";
my ( @adjvars, @generalrec );

# Set defaults
Expand Down Expand Up @@ -109,6 +109,7 @@ package main;
"prettyjson" => 0,
"reportfile" => 0,
"verbose" => 0,
"experimental" => 0,
"defaults-file" => '',
"defaults-extra-file" => '',
"protocol" => '',
Expand Down Expand Up @@ -151,7 +152,7 @@ package main;
'server-log=s', 'protocol=s',
'defaults-extra-file=s', 'dumpdir=s',
'feature=s', 'dbgpattern=s',
'defaultarch=i'
'defaultarch=i', 'experimental'
)
or pod2usage(
-exitval => 1,
Expand Down Expand Up @@ -209,6 +210,11 @@ package main;

$opt{dbgpattern} = '.*' if ( $opt{dbgpattern} eq '' );

# Activate debug variables
#if ( $opt{debug} ne '' ) { $opt{debug} = 2; }
# Activate experimental calculations and analysis
#if ( $opt{experimental} ne '' ) { $opt{experimental} = 1; }

# check if we need to enable verbose mode
if ( $opt{feature} ne '' ) { $opt{verbose} = 1; }
if ( $opt{verbose} ) {
Expand Down Expand Up @@ -2530,7 +2536,7 @@ sub check_architecture {
}
elsif ( `uname` =~ /Darwin/ && `uname -m` =~ /x86_64/ ) {

# Darwin gibas.local 12.5.2 Darwin Kernel Version 12.3.0: Sun Jan 6 22:37:10 PST 2013; root:xnu-2050.22.13~1/RELEASE_X86_64 x86_64
# Darwin gibas.local 12.5.3 Darwin Kernel Version 12.3.0: Sun Jan 6 22:37:10 PST 2013; root:xnu-2050.22.13~1/RELEASE_X86_64 x86_64
$arch = 64;
goodprint "Operating on 64-bit architecture";
}
Expand Down Expand Up @@ -3219,8 +3225,8 @@ sub calculations {
"select round( 100* sum(allocated)/( select VARIABLE_VALUE "
. "FROM performance_schema.global_variables "
. "WHERE VARIABLE_NAME='innodb_buffer_pool_size' ) ,2)"
. 'FROM sys.x\$innodb_buffer_stats_by_table;' );

. 'FROM sys.x\$innodb_buffer_stats_by_table;' )
if ($opt{experimental});
# Binlog Cache
if ( $myvar{'log_bin'} ne 'OFF' ) {
$mycalc{'pct_binlog_cache'} = percentage(
Expand Down Expand Up @@ -6372,14 +6378,16 @@ sub mysql_innodb {
# ,2) as "PCT ALLOC/BUFFER POOL"
#from sys.x$innodb_buffer_stats_by_table;

if (defined $mycalc{innodb_buffer_alloc_pct}) {
if ( $mycalc{innodb_buffer_alloc_pct} < 80 ) {
badprint "Ratio Buffer Pool allocated / Buffer Pool Size: "
. $mycalc{'innodb_buffer_alloc_pct'} . '%';
}
else {
goodprint "Ratio Buffer Pool allocated / Buffer Pool Size: "
. $mycalc{'innodb_buffer_alloc_pct'} . '%';
if ( $opt{experimental} ) {
if (defined $mycalc{innodb_buffer_alloc_pct}) {
if ( $mycalc{innodb_buffer_alloc_pct} < 80 ) {
badprint "Ratio Buffer Pool allocated / Buffer Pool Size: "
. $mycalc{'innodb_buffer_alloc_pct'} . '%';
}
else {
goodprint "Ratio Buffer Pool allocated / Buffer Pool Size: "
. $mycalc{'innodb_buffer_alloc_pct'} . '%';
}
}
}
if ( $mycalc{'innodb_log_size_pct'} < 20
Expand Down Expand Up @@ -6408,7 +6416,7 @@ sub mysql_innodb {
. $myvar{'innodb_log_files_in_group'} . " / "
. hr_bytes( $myvar{'innodb_buffer_pool_size'} )
. " should be equal to 25%";
push(
push(
@adjvars,
"innodb_log_file_size should be (="
. hr_bytes_rnd(
Expand Down Expand Up @@ -7201,6 +7209,8 @@ sub headerprint {
. "\t * Major Hayden <major\@mhtx.net>\n"
. " >> Bug reports, feature requests, and downloads at http://mysqltuner.pl/\n"
. " >> Run with '--help' for additional options and output filtering";
debugprint("Debug: ".$opt{debug});
debugprint("Experimental: ".$opt{experimental});
}

sub string2file {
Expand All @@ -7211,12 +7221,12 @@ sub string2file {
"Unable to open $filename in write mode. Please check permissions for this file or directory";
print $fh $content if defined($content);
close $fh;
debugprint $content if ( $opt{'debug'} );
debugprint $content;
}

sub file2array {
my $filename = shift;
debugprint "* reading $filename" if ( $opt{'debug'} );
debugprint "* reading $filename";
my $fh;
open( $fh, q(<), "$filename" )
or die "Couldn't open $filename for reading: $!\n";
Expand Down Expand Up @@ -7402,7 +7412,7 @@ sub which {

=head1 NAME

MySQLTuner 2.5.2 - MySQL High Performance Tuning Script
MySQLTuner 2.5.3 - MySQL High Performance Tuning Script

=head1 IMPORTANT USAGE GUIDELINES

Expand Down