mirror of https://github.com/mikaku/Monitorix.git
added the value 'Temp_tables_to_disk' in the MySQL graph
This commit is contained in:
Jordi Sanfeliu
parent
ee0fe58e80
commit
d78116c4df
49
lib/mysql.pm
49
lib/mysql.pm
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@ -87,7 +87,7 @@ sub mysql_init {
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push(@tmp, "DS:mysql" . $n . "_bsent:GAUGE:120:0:U");
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push(@tmp, "DS:mysql" . $n . "_qchr:GAUGE:120:0:100");
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push(@tmp, "DS:mysql" . $n . "_cstmtex:GAUGE:120:0:U");
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push(@tmp, "DS:mysql" . $n . "_val03:GAUGE:120:0:U");
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push(@tmp, "DS:mysql" . $n . "_tttd:GAUGE:120:0:100");
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push(@tmp, "DS:mysql" . $n . "_val04:GAUGE:120:0:U");
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push(@tmp, "DS:mysql" . $n . "_val05:GAUGE:120:0:U");
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push(@tmp, "DS:mysql" . $n . "_val06:GAUGE:120:0:U");
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@ -141,7 +141,9 @@ sub mysql_init {
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RRDs::tune($rrd,
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"--data-source-rename=mysql" . $n . "_val01:mysql" . $n . "_qchr",
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"--data-source-rename=mysql" . $n . "_val02:mysql" . $n . "_cstmtex",
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"--data-source-rename=mysql" . $n . "_val03:mysql" . $n . "_tttd",
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"--maximum=mysql" . $n . "_qchr:100",
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"--maximum=mysql" . $n . "_tttd:100",
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);
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}
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@ -213,7 +215,8 @@ sub mysql_update {
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my $slow_queries = 0;
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my $table_locks_waited = 0;
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my $threads_created = 0;
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my $qcache_hit_rate = 0;
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my $created_tmp_disk_tables = 0;
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my $created_tmp_tables = 0;
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my $bytes_received = 0;
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my $bytes_sent = 0;
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@ -309,6 +312,12 @@ sub mysql_update {
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if($name eq "Threads_created") {
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$threads_created = int($value);
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}
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if($name eq "Created_tmp_disk_tables") {
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$created_tmp_disk_tables = int($value);
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}
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if($name eq "Created_tmp_tables") {
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$created_tmp_tables = int($value);
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}
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if($name eq "Bytes_received") {
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$str = $n . "bytes_received";
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@ -421,6 +430,8 @@ sub mysql_update {
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my $connections_usage = 0;
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my $key_buffer_usage = 0;
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my $innodb_buffer_pool_usage = 0;
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my $qcache_hit_rate = 0;
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my $temp_tables_to_disk = 0;
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$tcache_hit_rate = (1 - ($threads_created / $connections_real)) * 100
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unless !$connections_real;
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@ -435,8 +446,9 @@ sub mysql_update {
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$connections_usage = $connections_usage > 100 ? 100 : $connections_usage;
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$qcache_hit_rate = $qcache_hits / ($qcache_hits + $Com_select) * 100;
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$temp_tables_to_disk = $created_tmp_disk_tables / ($created_tmp_disk_tables + $created_tmp_tables) * 100;
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$rrdata .= ":$queries:$slow_queries:$tcache_hit_rate:$qcache_usage:$opened_tables:$connections_usage:$connections:$table_locks_waited:$key_buffer_usage:$innodb_buffer_pool_usage:$com_select:$com_commit:$com_delete:$com_insert:$com_insert_s:$com_update:$com_replace:$com_replace_s:$com_rollback:$aborted_clients:$aborted_connects:$bytes_received:$bytes_sent:$qcache_hit_rate:0:0:0:0:0:0:0:0:0:0:0:0:0:0";
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$rrdata .= ":$queries:$slow_queries:$tcache_hit_rate:$qcache_usage:$opened_tables:$connections_usage:$connections:$table_locks_waited:$key_buffer_usage:$innodb_buffer_pool_usage:$com_select:$com_commit:$com_delete:$com_insert:$com_insert_s:$com_update:$com_replace:$com_replace_s:$com_rollback:$aborted_clients:$aborted_connects:$bytes_received:$bytes_sent:$qcache_hit_rate:$temp_tables_to_disk:0:0:0:0:0:0:0:0:0:0:0:0:0";
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}
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RRDs::update($rrd, $rrdata);
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@ -506,8 +518,8 @@ sub mysql_cgi {
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print(" ");
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for($n = 0; $n < scalar(my @ml = split(',', $mysql->{list})); $n++) {
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$line1 = " ";
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$line2 .= " Select Commit Delete Insert Insert_S Update Replace Replace_S Rollback TCacheHit QCache_U Conns_U KeyBuf_U InnoDB_U OpenedTbl TLocks_W Queries SlowQrs Conns AbrtCli AbrtConn BytesRecv BytesSent QCacheHitR StmtExec";
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$line3 .= "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------";
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$line2 .= " Select Commit Delete Insert Insert_S Update Replace Replace_S Rollback TCacheHit QCache_U Conns_U KeyBuf_U InnoDB_U OpenedTbl TLocks_W Queries SlowQrs Conns AbrtCli AbrtConn BytesRecv BytesSent QCacheHitR StmtExec TmpTbToDsk";
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$line3 .= "---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------";
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if($line1) {
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my $i = length($line1);
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if(lc($mysql->{conn_type}) eq "host") {
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@ -536,7 +548,7 @@ sub mysql_cgi {
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$from = $n2 * 38;
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$to = $from + 38;
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push(@row, @$line[$from..$to]);
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printf(" %6d %6d %6d %6d %8d %6d %7d %8d %8d %2d%% %2d%% %2d%% %2d%% %2d%% %6d %6d %6d %6d %6d %6d %6d %9d %9d %2d%% %6d", @row);
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printf(" %6d %6d %6d %6d %8d %6d %7d %8d %8d %2d%% %2d%% %2d%% %2d%% %2d%% %6d %6d %6d %6d %6d %6d %6d %9d %9d %2d%% %6d %2d%%", @row);
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}
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print("\n");
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}
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@ -755,6 +767,11 @@ sub mysql_cgi {
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push(@tmp, "GPRINT:tcache_hit_r:AVERAGE: Avg\\: %4.1lf%%");
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push(@tmp, "GPRINT:tcache_hit_r:MIN: Min\\: %4.1lf%%");
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push(@tmp, "GPRINT:tcache_hit_r:MAX: Max\\: %4.1lf%%\\n");
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push(@tmp, "LINE1:qcache_hitr#4444EE:Query Cache Hit Rate");
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push(@tmp, "GPRINT:qcache_hitr:LAST: Cur\\: %4.1lf%%");
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push(@tmp, "GPRINT:qcache_hitr:AVERAGE: Avg\\: %4.1lf%%");
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push(@tmp, "GPRINT:qcache_hitr:MIN: Min\\: %4.1lf%%");
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push(@tmp, "GPRINT:qcache_hitr:MAX: Max\\: %4.1lf%%\\n");
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push(@tmp, "LINE1:qcache_usage#44EEEE:Query Cache Usage");
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push(@tmp, "GPRINT:qcache_usage:LAST: Cur\\: %4.1lf%%");
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push(@tmp, "GPRINT:qcache_usage:AVERAGE: Avg\\: %4.1lf%%");
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@ -775,17 +792,18 @@ sub mysql_cgi {
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push(@tmp, "GPRINT:innodb_buf_u:AVERAGE: Avg\\: %4.1lf%%");
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push(@tmp, "GPRINT:innodb_buf_u:MIN: Min\\: %4.1lf%%");
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push(@tmp, "GPRINT:innodb_buf_u:MAX: Max\\: %4.1lf%%\\n");
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push(@tmp, "LINE1:qcache_hitr#4444EE:Query Cache Hit Rate");
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push(@tmp, "GPRINT:qcache_hitr:LAST: Cur\\: %4.1lf%%");
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push(@tmp, "GPRINT:qcache_hitr:AVERAGE: Avg\\: %4.1lf%%");
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push(@tmp, "GPRINT:qcache_hitr:MIN: Min\\: %4.1lf%%");
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push(@tmp, "GPRINT:qcache_hitr:MAX: Max\\: %4.1lf%%\\n");
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push(@tmp, "LINE1:tmptbltodsk#888888:Temp. Tables to Disk");
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push(@tmp, "GPRINT:tmptbltodsk:LAST: Cur\\: %4.1lf%%");
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push(@tmp, "GPRINT:tmptbltodsk:AVERAGE: Avg\\: %4.1lf%%");
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push(@tmp, "GPRINT:tmptbltodsk:MIN: Min\\: %4.1lf%%");
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push(@tmp, "GPRINT:tmptbltodsk:MAX: Max\\: %4.1lf%%\\n");
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push(@tmpz, "LINE2:tcache_hit_r#FFA500:Thread Cache Hit Rate");
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push(@tmpz, "LINE2:qcache_hitr#4444EE:Query Cache Hit Rate");
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push(@tmpz, "LINE2:qcache_usage#44EEEE:Query Cache Usage");
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push(@tmpz, "LINE2:conns_u#44EE44:Connections Usage");
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push(@tmpz, "LINE2:key_buf_u#EE4444:Key Buffer Usage");
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push(@tmpz, "LINE2:innodb_buf_u#EE44EE:Innodb Buffer P. Usage");
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push(@tmpz, "LINE2:qcache_hitr#4444EE:Query Cache Hit Rate");
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push(@tmpz, "LINE2:tmptbltodsk#888888:Temp. Tables to Disk");
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($width, $height) = split('x', $config->{graph_size}->{main});
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if($silent =~ /imagetag/) {
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($width, $height) = split('x', $config->{graph_size}->{remote}) if $silent eq "imagetag";
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@ -806,11 +824,12 @@ sub mysql_cgi {
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@{$cgi->{version12}},
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@{$colors->{graph_colors}},
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"DEF:tcache_hit_r=$rrd:mysql" . $e . "_tchr:AVERAGE",
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"DEF:qcache_hitr=$rrd:mysql" . $e . "_qchr:AVERAGE",
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"DEF:qcache_usage=$rrd:mysql" . $e . "_qcu:AVERAGE",
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"DEF:conns_u=$rrd:mysql" . $e . "_conns_u:AVERAGE",
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"DEF:key_buf_u=$rrd:mysql" . $e . "_kbu:AVERAGE",
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"DEF:innodb_buf_u=$rrd:mysql" . $e . "_innbu:AVERAGE",
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"DEF:qcache_hitr=$rrd:mysql" . $e . "_qchr:AVERAGE",
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"DEF:tmptbltodsk=$rrd:mysql" . $e . "_tttd:AVERAGE",
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@tmp);
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$err = RRDs::error;
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print("ERROR: while graphing $PNG_DIR" . "$PNG[$e * 6 + 1]: $err\n") if $err;
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@ -828,11 +847,12 @@ sub mysql_cgi {
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@{$cgi->{version12}},
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@{$colors->{graph_colors}},
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"DEF:tcache_hit_r=$rrd:mysql" . $e . "_tchr:AVERAGE",
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"DEF:qcache_hitr=$rrd:mysql" . $e . "_qchr:AVERAGE",
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"DEF:qcache_usage=$rrd:mysql" . $e . "_qcu:AVERAGE",
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"DEF:conns_u=$rrd:mysql" . $e . "_conns_u:AVERAGE",
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"DEF:key_buf_u=$rrd:mysql" . $e . "_kbu:AVERAGE",
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"DEF:innodb_buf_u=$rrd:mysql" . $e . "_innbu:AVERAGE",
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"DEF:qcache_hitr=$rrd:mysql" . $e . "_qchr:AVERAGE",
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"DEF:tmptbltodsk=$rrd:mysql" . $e . "_tttd:AVERAGE",
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@tmpz);
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$err = RRDs::error;
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print("ERROR: while graphing $PNG_DIR" . "$PNGz[$e * 6 + 1]: $err\n") if $err;
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@ -1039,6 +1059,7 @@ sub mysql_cgi {
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push(@tmp, "LINE1:conns#00EEEE");
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push(@tmp, "LINE1:acli#EEEE00");
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push(@tmp, "LINE1:acon#EE0000");
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push(@tmp, "COMMENT: \\n");
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push(@tmpz, "AREA:conns#44EEEE:Connections");
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push(@tmpz, "AREA:acli#EEEE44:Aborted Clients");
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push(@tmpz, "AREA:acon#EE4444:Aborted Connects");
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@ -931,6 +931,16 @@ This value should be reasonably far from 100%, otherwise consider incrementing t
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\fB(1 - (Innodb_buffer_pool_pages_free / Innodb_buffer_pool_pages_total)) * 100\fP
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.br
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This value should be reasonably far from 100%, otherwise consider incrementing the \fIinnodb_buffer_pool_size\fP parameter in \fImy.cnf\fP.
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.P
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\fBTemp. Tables To Disk\fP
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.br
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\fB(Created_temp_disk_tables / Created_temp_disk_tables + Created_temp_tables)) * 100\fP
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.br
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During operation, MySQL has to create some temporary tables (that can be explicit, so created by the web application, or implicit, so for example MySQL has to create one when he runs some "SELECT DISTINCT", "UNION" or "VIEW" queries). MySQL will prefer to save this tmp tables to memory, for a fast access. But if 'tmp_table_size' gets saturated, he has to write them on the disk instead, making the access slower.
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.br
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Therefore this value helps to know how many tmp tables go to the disk instead than to the memory. Keep in mind that some large queries, involving TEXT and BLOB columns, are directly written to the disk instead than to the memory, because they would be too big. So you probably will want to avoid having a high % of tmp tables written to the disk, but you will never reach 0% on a big site, and this is fine.
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.br
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Lower is better ... but 0% is not reachable and you should not try to reach it, usually.
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.SS Squid Proxy Web Cache (squid.rrd)
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.P
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.BI cmd
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