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adding replication tests for detecting master and slave stop status

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This commit is contained in:
Jean-Marie RENOUARD 2015-07-13 15:54:44 +02:00
parent 251323fcba
commit 457766e090
1 changed files with 64 additions and 22 deletions
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86
mysqltuner.pl
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@ -41,7 +41,7 @@ use File::Spec;
use Getopt::Long; use Getopt::Long;
use File::Basename; use File::Basename;
use Cwd 'abs_path'; use Cwd 'abs_path';
#use Data::Dumper qw/Dumper/; use Data::Dumper qw/Dumper/;
# Set up a few variables for use in the script # Set up a few variables for use in the script
my $tunerversion = "1.4.6"; my $tunerversion = "1.4.6";
my (@adjvars, @generalrec); my (@adjvars, @generalrec);
@ -67,6 +67,7 @@ my %opt = (
"reportfile" => 0, "reportfile" => 0,
"dbstat" => 0, "dbstat" => 0,
"idxstat" => 0, "idxstat" => 0,
"skippassword" => 0,
); );
@ -90,6 +91,7 @@ GetOptions(\%opt,
'mysqlcmd=s', 'mysqlcmd=s',
'help', 'help',
'buffers', 'buffers',
'skippassword',
'passwordfile=s', 'passwordfile=s',
'reportfile=s', 'reportfile=s',
'silent', 'silent',
@ -123,6 +125,7 @@ sub usage {
" Performance and Reporting Options\n". " Performance and Reporting Options\n".
" --skipsize Don't enumerate tables and their types/sizes (default: on)\n". " --skipsize Don't enumerate tables and their types/sizes (default: on)\n".
" (Recommended for servers with many tables)\n". " (Recommended for servers with many tables)\n".
" --skippassword Don't perform checks on user passwords(default: off)\n".
" --checkversion Check for updates to MySQLTuner (default: don't check)\n". " --checkversion Check for updates to MySQLTuner (default: don't check)\n".
" --forcemem <size> Amount of RAM installed in megabytes\n". " --forcemem <size> Amount of RAM installed in megabytes\n".
" --forceswap <size> Amount of swap memory configured in megabytes\n". " --forceswap <size> Amount of swap memory configured in megabytes\n".
@ -480,16 +483,20 @@ sub select_one {
} }
# Populates all of the variable and status hashes # Populates all of the variable and status hashes
my (%mystat,%myvar,$dummyselect); my (%mystat,%myvar,$dummyselect,%myrepl, %myslaves);
sub get_all_vars { sub get_all_vars {
# We need to initiate at least one query so that our data is useable # We need to initiate at least one query so that our data is useable
$dummyselect = `$mysqlcmd $mysqllogin -Bse "SELECT VERSION();"`; $dummyselect = select_one "SELECT VERSION()";
my @mysqlvarlist = `$mysqlcmd $mysqllogin -Bse "SHOW /*!50000 GLOBAL */ VARIABLES;"`; debugprint "VERSION: ".$dummyselect."\n";
my @mysqlvarlist = select_array "SHOW /*!50000 GLOBAL */ VARIABLES";
foreach my $line (@mysqlvarlist) { foreach my $line (@mysqlvarlist) {
$line =~ /([a-zA-Z_]*)\s*(.*)/; $line =~ /([a-zA-Z_]*)\s*(.*)/;
$myvar{$1} = $2; $myvar{$1} = $2;
debugprint "$1 = $2\n";
} }
my @mysqlstatlist = `$mysqlcmd $mysqllogin -Bse "SHOW /*!50000 GLOBAL */ STATUS;"`;
my @mysqlstatlist = select_array "SHOW /*!50000 GLOBAL */ STATUS";
foreach my $line (@mysqlstatlist) { foreach my $line (@mysqlstatlist) {
$line =~ /([a-zA-Z_]*)\s*(.*)/; $line =~ /([a-zA-Z_]*)\s*(.*)/;
$mystat{$1} = $2; $mystat{$1} = $2;
@ -501,7 +508,7 @@ sub get_all_vars {
# have_* for engines is deprecated and will be removed in MySQL 5.6; # have_* for engines is deprecated and will be removed in MySQL 5.6;
# check SHOW ENGINES and set corresponding old style variables. # check SHOW ENGINES and set corresponding old style variables.
# Also works around MySQL bug #59393 wrt. skip-innodb # Also works around MySQL bug #59393 wrt. skip-innodb
my @mysqlenginelist = `$mysqlcmd $mysqllogin -Bse "SHOW ENGINES;" 2>$devnull`; my @mysqlenginelist = select_array "SHOW ENGINES";
foreach my $line (@mysqlenginelist) { foreach my $line (@mysqlenginelist) {
if ($line =~ /^([a-zA-Z_]+)\s+(\S+)/) { if ($line =~ /^([a-zA-Z_]+)\s+(\S+)/) {
my $engine = lc($1); my $engine = lc($1);
@ -514,6 +521,24 @@ sub get_all_vars {
$myvar{"have_$engine"} = $val; $myvar{"have_$engine"} = $val;
} }
} }
my @mysqlslave = select_array "SHOW SLAVE STATUS\\G";
foreach my $line (@mysqlslave) {
if ($line =~ /\s*(.*):\s*(.*)/) {
debugprint "$1 => $2\n";
$myrepl{"$1"} = $2;
}
}
#print Dumper(%myrepl);
#exit 0;
my @mysqlslaves = select_array "SHOW SLAVE HOSTS";
my @lineitems=();
foreach my $line (@mysqlslaves) {
debugprint "L: $line \n";
@lineitems=split /\s*/, $line;
$myslaves{$lineitems[0]}=$line;
}
} }
sub get_basic_passwords { sub get_basic_passwords {
@ -526,9 +551,12 @@ sub get_basic_passwords {
sub security_recommendations { sub security_recommendations {
prettyprint "\n-------- Security Recommendations -------------------------------------------\n"; prettyprint "\n-------- Security Recommendations -------------------------------------------\n";
if ($opt{skippassword} eq 1) {
infoprint "Skipped due to --skippassword option\n";
return;
}
# Looking for Anonymous users # Looking for Anonymous users
my @mysqlstatlist = `$mysqlcmd $mysqllogin -Bse "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE TRIM(USER) = '' OR USER IS NULL ;"`; my @mysqlstatlist = select_array "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE TRIM(USER) = '' OR USER IS NULL";
if (@mysqlstatlist) { if (@mysqlstatlist) {
foreach my $line (sort @mysqlstatlist) { foreach my $line (sort @mysqlstatlist) {
chomp($line); chomp($line);
@ -540,7 +568,7 @@ sub security_recommendations {
} }
# Looking for Empty Password # Looking for Empty Password
@mysqlstatlist = `$mysqlcmd $mysqllogin -Bse "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE password = '' OR password IS NULL;"`; @mysqlstatlist = select_array "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE password = '' OR password IS NULL";
if (@mysqlstatlist) { if (@mysqlstatlist) {
foreach my $line (sort @mysqlstatlist) { foreach my $line (sort @mysqlstatlist) {
chomp($line); chomp($line);
@ -552,7 +580,7 @@ sub security_recommendations {
} }
# Looking for User with user/ uppercase /capitalise user as password # Looking for User with user/ uppercase /capitalise user as password
@mysqlstatlist = `$mysqlcmd $mysqllogin -Bse "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE CAST(password as Binary) = PASSWORD(user) OR CAST(password as Binary) = PASSWORD(UPPER(user)) OR CAST(password as Binary) = PASSWORD(UPPER(LEFT(User, 1)) + SUBSTRING(User, 2, LENGTH(User)));"`; @mysqlstatlist = select_array "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE CAST(password as Binary) = PASSWORD(user) OR CAST(password as Binary) = PASSWORD(UPPER(user)) OR CAST(password as Binary) = PASSWORD(UPPER(LEFT(User, 1)) + SUBSTRING(User, 2, LENGTH(User)))";
if (@mysqlstatlist) { if (@mysqlstatlist) {
foreach my $line (sort @mysqlstatlist) { foreach my $line (sort @mysqlstatlist) {
chomp($line); chomp($line);
@ -561,7 +589,7 @@ sub security_recommendations {
push(@generalrec, "Set up a Secure Password for user\@host ( SET PASSWORD FOR 'user'\@'SpecificDNSorIp' = PASSWORD('secure_password'); )"); push(@generalrec, "Set up a Secure Password for user\@host ( SET PASSWORD FOR 'user'\@'SpecificDNSorIp' = PASSWORD('secure_password'); )");
} }
@mysqlstatlist = `$mysqlcmd $mysqllogin -Bse "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE HOST='%';"`; @mysqlstatlist = select_array "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE HOST='%'";
if (@mysqlstatlist) { if (@mysqlstatlist) {
foreach my $line (sort @mysqlstatlist) { foreach my $line (sort @mysqlstatlist) {
chomp($line); chomp($line);
@ -584,9 +612,8 @@ sub security_recommendations {
$pass=~s/\s//g; $pass=~s/\s//g;
chomp($pass); chomp($pass);
# Looking for User with user/ uppercase /capitalise weak password # Looking for User with user/ uppercase /capitalise weak password
$passreq="SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE password = PASSWORD('".$pass."') OR password = PASSWORD(UPPER('".$pass."')) OR password = PASSWORD(UPPER(LEFT('".$pass."', 1)) + SUBSTRING('".$pass."', 2, LENGTH('".$pass."')));\n"; @mysqlstatlist = select_array "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE password = PASSWORD('".$pass."') OR password = PASSWORD(UPPER('".$pass."')) OR password = PASSWORD(UPPER(LEFT('".$pass."', 1)) + SUBSTRING('".$pass."', 2, LENGTH('".$pass."')))";
@mysqlstatlist = `$mysqlcmd $mysqllogin -Bse "$passreq"`; debugprint "There is ".scalar (@mysqlstatlist). " items.\n";
#infoprint "There is ".scalar (@mysqlstatlist). " items.\n";
if (@mysqlstatlist) { if (@mysqlstatlist) {
foreach my $line (@mysqlstatlist) { foreach my $line (@mysqlstatlist) {
chomp($line); chomp($line);
@ -604,16 +631,30 @@ sub security_recommendations {
sub get_replication_status { sub get_replication_status {
prettyprint "\n-------- Replication Metrics -------------------------------------------------\n"; prettyprint "\n-------- Replication Metrics -------------------------------------------------\n";
my $slave_status = `$mysqlcmd $mysqllogin -Bse "show slave status\\G"`; if( scalar(keys %myslaves)==0 ) {
if( $slave_status eq '' ) { infoprint "No replication slave(s) for this server.\n";
infoprint "No replication setup for this server.\n"; } else {
infoprint "This server is acting as master for ".scalar(keys %myslaves)." server(s).\n";
}
if( scalar(keys %myrepl)==0 and scalar(keys %myslaves)==0 ) {
infoprint "This is a standalone server..\n";
return; return;
} }
debugprint "$slave_status \n"; if( scalar(keys %myrepl)==0 ) {
my ($io_running) = ($slave_status =~ /slave_io_running\S*\s+(\S+)/i); infoprint "No replication setup for this server.\n";
my ($sql_running) = ($slave_status =~ /slave_sql_running\S*\s+(\S+)/i); }
my ($seconds_behind_master) = ($slave_status =~ /seconds_behind_master\S*\s+(\S+)/i); my ($io_running) = $myrepl{'Slave_IO_Running'};
if ($io_running eq 'Yes' && $sql_running eq 'Yes') { debugprint "IO RUNNING: $io_running \n";
my ($sql_running) = $myrepl{'Slave_SQL_Running'};
debugprint "SQL RUNNING: $sql_running \n";
my ($seconds_behind_master) = $myrepl{'Seconds_Behind_Master'};
debugprint "SECONDS : $seconds_behind_master \n";
if (defined($io_running) and ($io_running !~ '/yes/i' or $sql_running !~ '/yes/i' )) {
badprint "This replication slave is not running but seems to be configurated.";
}
if (defined($io_running ) && $io_running =~ '/yes/i' && $sql_running =~ '/yes/i') {
if ($myvar{'read_only'} eq 'OFF') { if ($myvar{'read_only'} eq 'OFF') {
badprint "This replication slave is running with the read_only option disabled."; badprint "This replication slave is running with the read_only option disabled.";
} else { } else {
@ -1570,6 +1611,7 @@ You must provide the remote server's total memory when connecting to other serve
--skipsize Don't enumerate tables and their types/sizes (default: on) --skipsize Don't enumerate tables and their types/sizes (default: on)
(Recommended for servers with many tables) (Recommended for servers with many tables)
--skippassword Don't perform checks on user passwords(default: off)
--checkversion Check for updates to MySQLTuner (default: don't check) --checkversion Check for updates to MySQLTuner (default: don't check)
--forcemem <size> Amount of RAM installed in megabytes --forcemem <size> Amount of RAM installed in megabytes
--forceswap <size> Amount of swap memory configured in megabytes --forceswap <size> Amount of swap memory configured in megabytes