Add advice for performance schema
This commit is contained in:
Jean-Marie RENOUARD
parent
7d8224a6e4
commit
871d984d1a
2 changed files with 146 additions and 99 deletions
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@ -292,7 +292,9 @@
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* thread_pool_size between 4 to 8 for MyIsam usage
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## MySQLTuner performance schema and sysschema information
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* Check that Performance schema is activated for 5.6+ version
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* Check that Performance schema is disactivated for 5.5- version
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* Check that Sys schema is installed
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* sys Schema version
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* Top user per connection
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* Top user per statement
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113
mysqltuner.pl
113
mysqltuner.pl
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@ -560,7 +560,8 @@ sub validate_tuner_version {
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}
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debugprint "curl and wget are not available.";
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infoprint "Unable to check for the latest MySQLTuner version";
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infoprint "Using --pass and --password option is insecure during MySQLTuner execution(Password disclosure)"
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infoprint
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"Using --pass and --password option is insecure during MySQLTuner execution(Password disclosure)"
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if ( defined( $opt{'pass'} ) );
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}
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@ -710,6 +711,7 @@ sub mysql_setup {
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debugprint "MySQL Client: $mysqlcmd";
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$opt{port} = ( $opt{port} eq 0 ) ? 3306 : $opt{port};
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# Are we being asked to connect via a socket?
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if ( $opt{socket} ne 0 ) {
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$remotestring = " -S $opt{socket} -P $opt{port}";
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@ -1055,7 +1057,8 @@ sub get_all_vars {
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# Support GTID MODE FOR MARIADB
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# Issue MariaDB GTID mode #272
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$myvar{'gtid_mode'}=$myvar{'gtid_strict_mode'} if (defined($myvar{'gtid_strict_mode'}));
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$myvar{'gtid_mode'} = $myvar{'gtid_strict_mode'}
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if ( defined( $myvar{'gtid_strict_mode'} ) );
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$myvar{'have_threadpool'} = "NO";
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if ( defined( $myvar{'thread_pool_size'} )
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@ -1112,8 +1115,9 @@ sub remove_empty {
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sub grep_file_contents {
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my $file = shift;
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my $patt
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my $patt;
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}
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sub get_file_contents {
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my $file = shift;
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open( my $fh, "<", $file ) or die "Can't open $file for read: $!";
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@ -1129,30 +1133,37 @@ sub get_basic_passwords {
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sub log_file_recommandations {
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subheaderprint "Log file Recommendations";
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infoprint "Log file: " . $myvar{'log_error'}. "(".hr_bytes_rnd((stat $myvar{'log_error'})[7]).")";
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infoprint "Log file: "
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. $myvar{'log_error'} . "("
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. hr_bytes_rnd( ( stat $myvar{'log_error'} )[7] ) . ")";
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if ( -f "$myvar{'log_error'}" ) {
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goodprint "Log file $myvar{'log_error'} exists";
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} else {
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}
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else {
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badprint "Log file $myvar{'log_error'} doesn't exist";
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}
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if ( -r "$myvar{'log_error'}" ) {
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goodprint "Log file $myvar{'log_error'} is readable.";
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} else {
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}
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else {
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badprint "Log file $myvar{'log_error'} isn't readable.";
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return;
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}
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if ( ( stat $myvar{'log_error'} )[7] > 0 ) {
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goodprint "Log file $myvar{'log_error'} is not empty";
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} else {
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}
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else {
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badprint "Log file $myvar{'log_error'} is empty";
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}
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if ( ( stat $myvar{'log_error'} )[7] < 32 * 1024 * 1024 ) {
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goodprint "Log file $myvar{'log_error'} is smaller than 32 Mb";
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} else {
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}
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else {
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badprint "Log file $myvar{'log_error'} is bigger than 32 Mb";
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push @generalrec,
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$myvar{'log_error'} ."is > 32Mb, you should analyze why or implement a rotation log strategy such as logrotate!" ;
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$myvar{'log_error'}
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. "is > 32Mb, you should analyze why or implement a rotation log strategy such as logrotate!";
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}
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my @log_content = get_file_contents( $myvar{'log_error'} );
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@ -1167,19 +1178,23 @@ sub log_file_recommandations {
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debugprint "$numLi: $logLi" if $logLi =~ /warning|error/i;
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$nbErrLog++ if $logLi =~ /error/i;
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$nbWarnLog++ if $logLi =~ /warning/i;
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push @lastShutdowns, $logLi if $logLi =~ /Shutdown complete/ and $logLi !~ /Innodb/i;
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push @lastShutdowns, $logLi
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if $logLi =~ /Shutdown complete/ and $logLi !~ /Innodb/i;
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push @lastStarts, $logLi if $logLi =~ /ready for connections/;
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}
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if ( $nbWarnLog > 0 ) {
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badprint "$myvar{'log_error'} contains $nbWarnLog warning(s).";
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push @generalrec, "Control warning line(s) into $myvar{'log_error'} file";
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} else {
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push @generalrec,
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"Control warning line(s) into $myvar{'log_error'} file";
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}
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else {
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goodprint "$myvar{'log_error'} doesn't contain any warning.";
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}
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if ( $nbErrLog > 0 ) {
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badprint "$myvar{'log_error'} contains $nbErrLog error(s).";
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push @generalrec, "Control error line(s) into $myvar{'log_error'} file";
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} else {
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}
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else {
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goodprint "$myvar{'log_error'} doesn't contain any error.";
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}
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@ -1193,7 +1208,8 @@ sub log_file_recommandations {
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$nStart++;
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infoprint "$nStart) $startd";
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}
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infoprint scalar @lastShutdowns . " shutdown(s) detected in $myvar{'log_error'}";
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infoprint scalar @lastShutdowns
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. " shutdown(s) detected in $myvar{'log_error'}";
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$nStart = 0;
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$nEnd = 10;
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if ( scalar @lastShutdowns < $nEnd ) {
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@ -1203,11 +1219,10 @@ sub log_file_recommandations {
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$nStart++;
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infoprint "$nStart) $shutd";
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}
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#exit 0;
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}
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sub cve_recommendations {
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subheaderprint "CVE Security Recommendations";
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unless ( defined( $opt{cvefile} ) && -f "$opt{cvefile}" ) {
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@ -1751,7 +1766,8 @@ sub security_recommendations {
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$nbins++;
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}
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}
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debugprint "$nbInterPass / ".scalar(@passwords) if ($nbInterPass %1000 ==0);
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debugprint "$nbInterPass / " . scalar(@passwords)
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if ( $nbInterPass % 1000 == 0 );
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}
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}
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if ( $nbins > 0 ) {
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@ -2017,7 +2033,8 @@ sub check_storage_engines {
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my $not_innodb = '';
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if ( not defined $result{'Variables'}{'innodb_file_per_table'} ) {
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$not_innodb = "AND NOT ENGINE='InnoDB'";
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} elsif ( $result{'Variables'}{'innodb_file_per_table'} eq 'OFF' ) {
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}
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elsif ( $result{'Variables'}{'innodb_file_per_table'} eq 'OFF' ) {
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$not_innodb = "AND NOT ENGINE='InnoDB'";
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}
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$result{'Tables'}{'Fragmented tables'} =
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@ -2502,7 +2519,8 @@ sub calculations {
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# InnoDB
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if ( $myvar{'have_innodb'} eq "YES" ) {
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$mycalc{'innodb_log_size_pct'} =
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( $myvar{'innodb_log_file_size'} *$myvar{'innodb_log_files_in_group'} * 100 /
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( $myvar{'innodb_log_file_size'} *
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$myvar{'innodb_log_files_in_group'} * 100 /
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$myvar{'innodb_buffer_pool_size'} );
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}
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@ -2770,7 +2788,10 @@ sub mysql_stats {
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push( @generalrec,
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"Upgrade MySQL to version 4+ to utilize query caching" );
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}
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elsif ( mysql_version_ge( 5, 5 ) and !mysql_version_ge( 10, 1 ) and $myvar{'query_cache_type'} eq "OFF" ) {
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elsif ( mysql_version_ge( 5, 5 )
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and !mysql_version_ge( 10, 1 )
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and $myvar{'query_cache_type'} eq "OFF" )
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{
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goodprint
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"Query cache is disabled by default due to mutex contention on multiprocessor machines.";
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}
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@ -3292,22 +3313,36 @@ sub mysqsl_pfs {
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subheaderprint "Performance schema";
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# Performance Schema
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unless ( defined( $myvar{'performance_schema'} )
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and $myvar{'performance_schema'} eq 'ON' )
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{
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$myvar{'performance_schema'} = 'OFF'
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unless defined( $myvar{'performance_schema'} );
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unless ( $myvar{'performance_schema'} eq 'ON' ) {
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infoprint "Performance schema is disabled.";
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return;
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if ( mysql_version_ge( 5, 5 ) ) {
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push( @generalrec,
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"Performance should be activated for better diagnostics" );
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push( @adjvars, "performance_schema = ON enable PFS" );
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}
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infoprint "Performance schema is enabled.";
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else {
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push( @generalrec,
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"Performance shouldn't be activated for MySQL and MariaDB 5.5 and lower version"
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);
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push( @adjvars, "performance_schema = OFF disable PFS" );
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}
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}
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debugprint "Performance schema is " . $myvar{'performance_schema'};
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infoprint "Memory used by P_S: " . hr_bytes( get_pf_memory() );
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unless ( grep /^sys$/, select_array("SHOW DATABASES") ) {
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infoprint "Sys schema isn't installed.";
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push( @generalrec,
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"Consider installing Sys schema from https://github.com/mysql/mysql-sys"
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);
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return;
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}
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else {
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infoprint "Sys schema is installed.";
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return if ( $opt{pfstat} == 0 );
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}
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return if ( $opt{pfstat} == 0 or $myvar{'performance_schema'} ne 'ON' );
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infoprint "Sys schema Version: "
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. select_one("select sys_version from sys.version");
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@ -5245,7 +5280,8 @@ sub mysql_innodb {
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}
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if ( defined $myvar{'innodb_log_files_in_group'} ) {
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infoprint " +-- InnoDB Total Log File Size: "
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. hr_bytes( $myvar{'innodb_log_files_in_group'}*$myvar{'innodb_log_file_size'});
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. hr_bytes( $myvar{'innodb_log_files_in_group'} *
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$myvar{'innodb_log_file_size'} );
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}
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if ( defined $myvar{'innodb_log_buffer_size'} ) {
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infoprint " +-- InnoDB Log Buffer: "
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@ -5294,17 +5330,24 @@ sub mysql_innodb {
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{
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badprint "Ratio InnoDB log file size / InnoDB Buffer pool size ("
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. $mycalc{'innodb_log_size_pct'} . " %): "
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. hr_bytes( $myvar{'innodb_log_file_size'} )." * ".$myvar{'innodb_log_files_in_group'}. "/"
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. hr_bytes( $myvar{'innodb_log_file_size'} ) . " * "
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. $myvar{'innodb_log_files_in_group'} . "/"
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. hr_bytes( $myvar{'innodb_buffer_pool_size'} )
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. " should be equal 25%";
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push( @adjvars,
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push(
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@adjvars,
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"innodb_log_file_size * innodb_log_files_in_group should be equals to 1/4 of buffer pool size (="
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. hr_bytes_rnd( $myvar{'innodb_buffer_pool_size'} * $myvar{'innodb_log_files_in_group'} / 4 )
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. ") if possible." );
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. hr_bytes_rnd(
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$myvar{'innodb_buffer_pool_size'} *
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$myvar{'innodb_log_files_in_group'} / 4
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)
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. ") if possible."
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);
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}
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else {
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goodprint "InnoDB log file size / InnoDB Buffer pool size: "
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. hr_bytes( $myvar{'innodb_log_file_size'} ) ." * ".$myvar{'innodb_log_files_in_group'}. "/"
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. hr_bytes( $myvar{'innodb_log_file_size'} ) . " * "
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. $myvar{'innodb_log_files_in_group'} . "/"
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. hr_bytes( $myvar{'innodb_buffer_pool_size'} )
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. " should be equal 25%";
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}
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@ -5567,7 +5610,9 @@ sub mysql_databases {
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)
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) . ")";
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badprint "Index size is larger than data size for $dbinfo[0] \n"
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if ( $dbinfo[2] ne 'NULL' ) and ( $dbinfo[3] ne 'NULL' ) and ( $dbinfo[2] < $dbinfo[3] );
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if ( $dbinfo[2] ne 'NULL' )
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and ( $dbinfo[3] ne 'NULL' )
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and ( $dbinfo[2] < $dbinfo[3] );
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badprint "There are " . $dbinfo[5] . " storage engines. Be careful. \n"
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if $dbinfo[5] > 1;
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$result{'Databases'}{ $dbinfo[0] }{'Rows'} = $dbinfo[1];
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