hhf/MySQLTuner-perl
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Adding detection of non primary key tables

Browse source 
Adding detection of non InnoDB tables
Adding detection of non utf8 colums
This commit is contained in:
Jean-Marie Renouard 2023-06-22 23:00:28 +02:00
parent 2185340548
commit 5fac4cd07d
2 changed files with 95 additions and 35 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
.gitignore vendored
View file

@ -16,3 +16,4 @@ test_db/**
result*
result_*
sql/*.sql
sql/*.csv

127
mysqltuner.pl
View file

@ -1120,6 +1120,7 @@ sub select_csv_file {
print $l if $opt{debug};
}
close $fh;
infoprint "CSV file $tfile created";
}
sub human_size {
@ -5722,6 +5723,97 @@ sub get_wsrep_option {
return $memValue;
}
# REcommendations for Tables
sub mysql_table_structures {
subheaderprint "Table structures analysis";
my @primaryKeysNbTables = select_array(
"Select CONCAT(c.table_schema, ',' , c.table_name)
from information_schema.columns c
join information_schema.tables t using (TABLE_SCHEMA, TABLE_NAME)
where c.table_schema not in ('sys', 'mysql', 'information_schema', 'performance_schema')
and t.table_type = 'BASE TABLE'
group by c.table_schema,c.table_name
having sum(if(c.column_key in ('PRI', 'UNI'), 1, 0)) = 0"
);
my $tmpContent='Schema,Table';
if ( scalar(@primaryKeysNbTables) > 0 ) {
badprint "Following table(s) don't have primary key:";
foreach my $badtable (@primaryKeysNbTables) {
badprint "\t$badtable";
push @{ $result{'Tables without PK'} }, $badtable;
$tmpContent.="\n$badtable";
}
push @generalrec,
"Ensure that all table(s) get an explicit primary keys for performance, maintenance and also for replication";
}
else {
goodprint "All tables get a primary key";
}
dump_into_file( "tables_without_primary_keys.csv", $tmpContent );
my @nonInnoDBTables = select_array(
"select CONCAT(table_schema, ',', table_name, ',', ENGINE)
FROM information_schema.tables t
WHERE ENGINE <> 'InnoDB'
and t.table_type = 'BASE TABLE'
and table_schema not in
('sys', 'mysql', 'performance_schema', 'information_schema')"
);
$tmpContent='Schema,Table,Engine';
if ( scalar(@nonInnoDBTables) > 0 ) {
badprint "Following table(s) are not InnoDB table:";
push @generalrec,
"Ensure that all table(s) are InnoDB tables for performance and also for replication";
foreach my $badtable (@nonInnoDBTables) {
badprint "\t$badtable";
$tmpContent.="\n$badtable";
}
}
else {
goodprint "All tables are InnoDB tables";
}
dump_into_file( "tables_non_innodb.csv", $tmpContent );
my @nonutf8columns = select_array(
"SELECT CONCAT(table_schema, ',', table_name, ',', column_name, ',', CHARacter_set_name, ',', COLLATION_name, ',', data_type, ',', CHARACTER_MAXIMUM_LENGTH)
from information_schema.columns
WHERE table_schema not in ('sys', 'mysql', 'performance_schema', 'information_schema')
and (CHARacter_set_name NOT LIKE 'utf8%'
or COLLATION_name NOT LIKE 'utf8%');"
);
$tmpContent='Schema,Table,Column, Charset, Collation, Data Type, Max Length';
if ( scalar(@nonutf8columns) > 0 ) {
badprint "Following character columns(s) are not utf8 compliant:";
push @generalrec,
"Ensure that all text colums(s) are UTF-8 compliant for encoding support and performance";
foreach my $badtable (@nonutf8columns) {
badprint "\t$badtable";
$tmpContent.="\n$badtable";
}
}
else {
goodprint "All columns are UTF-8 compliant";
}
dump_into_file( "columns_non_utf8.csv", $tmpContent );
my @utf8columns = select_array(
"SELECT CONCAT(table_schema, ',', table_name, ',', column_name, ',', CHARacter_set_name, ',', COLLATION_name, ',', data_type, ',', CHARACTER_MAXIMUM_LENGTH)
from information_schema.columns
WHERE table_schema not in ('sys', 'mysql', 'performance_schema', 'information_schema')
and (CHARacter_set_name LIKE 'utf8%'
or COLLATION_name LIKE 'utf8%');"
);
$tmpContent='Schema,Table,Column, Charset, Collation, Data Type, Max Length';
foreach my $badtable (@utf8columns) {
badprint "\t$badtable";
$tmpContent.="\n$badtable";
}
dump_into_file( "columns_utf8.csv", $tmpContent );
}
# Recommendations for Galera
sub mariadb_galera {
subheaderprint "Galera Metrics";
@ -5760,16 +5852,6 @@ sub mariadb_galera {
infoprint "GCache is using "
. hr_bytes_rnd( get_wsrep_option('gcache.mem_size') );
#my @primaryKeysNbTables=();
my @primaryKeysNbTables = select_array(
"Select CONCAT(c.table_schema,CONCAT('.', c.table_name))
from information_schema.columns c
join information_schema.tables t using (TABLE_SCHEMA, TABLE_NAME)
where c.table_schema not in ('mysql', 'information_schema', 'performance_schema')
and t.table_type != 'VIEW'
group by c.table_schema,c.table_name
having sum(if(c.column_key in ('PRI', 'UNI'), 1, 0)) = 0"
);
infoprint "CPU cores detected : " . (cpu_cores);
infoprint "wsrep_slave_threads: " . get_wsrep_option('wsrep_slave_threads');
@ -5836,30 +5918,6 @@ having sum(if(c.column_key in ('PRI', 'UNI'), 1, 0)) = 0"
"Flow control fraction seems to be OK (wsrep_flow_control_paused <= 0.02)";
}
if ( scalar(@primaryKeysNbTables) > 0 ) {
badprint "Following table(s) don't have primary key:";
foreach my $badtable (@primaryKeysNbTables) {
badprint "\t$badtable";
push @{ $result{'Tables without PK'} }, $badtable;
}
}
else {
goodprint "All tables get a primary key";
}
my @nonInnoDBTables = select_array(
"select CONCAT(table_schema,CONCAT('.', table_name)) from information_schema.tables where ENGINE <> 'InnoDB' and table_schema not in ('mysql', 'performance_schema', 'information_schema')"
);
if ( scalar(@nonInnoDBTables) > 0 ) {
badprint "Following table(s) are not InnoDB table:";
push @generalrec,
"Ensure that all table(s) are InnoDB tables for Galera replication";
foreach my $badtable (@nonInnoDBTables) {
badprint "\t$badtable";
}
}
else {
goodprint "All tables are InnoDB tables";
}
if ( $myvar{'binlog_format'} ne 'ROW' ) {
badprint "Binlog format should be in ROW mode.";
push @adjvars, "binlog_format = ROW";
@ -7126,6 +7184,7 @@ log_file_recommendations; # check log file content
check_metadata_perf; # Show parameter impacting performance during analysis
mysql_databases; # Show information about databases
mysql_tables; # Show information about table column
mysql_table_structures; # Show information about table structures
mysql_indexes; # Show information about indexes
mysql_views; # Show information about views