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Minor fix if no selects have been run (Thanks Kevin)

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Major Hayden 2007-08-15 12:30:08 +00:00
parent efc984f945
commit 44f465ae0a
1 changed files with 4 additions and 3 deletions
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7
mysqltuner.pl
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@ -147,8 +147,9 @@ sub mysql_setup {
} }
} }
my (%mystat,%myvar); my (%mystat,%myvar,$dummyselect);
sub get_all_vars { sub get_all_vars {
$dummyselect = `mysql $mysqllogin -Bse "SELECT VERSION();"`;
my @mysqlvarlist = `mysql $mysqllogin -Bse "SHOW /*!50000 GLOBAL */ VARIABLES;"`; my @mysqlvarlist = `mysql $mysqllogin -Bse "SHOW /*!50000 GLOBAL */ VARIABLES;"`;
foreach my $line (@mysqlvarlist) { foreach my $line (@mysqlvarlist) {
$line =~ /([a-zA-Z_]*)\s*(.*)/; $line =~ /([a-zA-Z_]*)\s*(.*)/;
@ -285,9 +286,9 @@ sub calculations {
if ($mysqlvermajor > 3) { if ($mysqlvermajor > 3) {
$mycalc{'query_cache_efficiency'} = sprintf("%.1f",($mystat{'Qcache_hits'} / ($mystat{'Com_select'} + $mystat{'Qcache_hits'})) * 100); $mycalc{'query_cache_efficiency'} = sprintf("%.1f",($mystat{'Qcache_hits'} / ($mystat{'Com_select'} + $mystat{'Qcache_hits'})) * 100);
if ($myvar{'query_cache_size'}) { if ($myvar{'query_cache_size'}) {
$mycalc{'pct_query_cache_used'} = sprintf("%.1f",100 - ($mystat{'Qcache_free_memory'} / $myvar{'query_cache_size'}) * 100); $mycalc{'pct_query_cache_used'} = sprintf("%.1f",100 - ($mystat{'Qcache_free_memory'} / $myvar{'query_cache_size'}) * 100);
} }
if ($mystat{'Qcache_lowmem_prunes'} == 0) { if ($mystat{'Qcache_lowmem_prunes'} == 0) {
$mycalc{'query_cache_prunes_per_day'} = 0; $mycalc{'query_cache_prunes_per_day'} = 0;
} else { } else {
$mycalc{'query_cache_prunes_per_day'} = int($mystat{'Qcache_lowmem_prunes'} / ($mystat{'Uptime'}/86400)); $mycalc{'query_cache_prunes_per_day'} = int($mystat{'Qcache_lowmem_prunes'} / ($mystat{'Uptime'}/86400));