Plugin Munin: open table by database
Suite au précédent plugin munin pour Mysql qui indique les ouvertures de table, il manquait une information pour aider à l’optimisation de mysql: Savoir quelle table provoque les ouvertures: voila le code qui donne ces informations:
#!/bin/sh # # Plugin to monitor the number of opened tables on a mysql-server. # # Parameters: # # config # autoconf # # Configuration variables # # mysqlopts - Options to pass to mysql # # $Log$ # Revision 1.0 2009/05/1 1:04 ffwill # #%# family=auto #%# capabilities=autoconf MYSQLOPTS="$mysqlopts" MYSQL=${mysql:-mysql} BDD="database list you want monitoring" TMPFILE="/tmp/munin.mysql_open_tables_by_database" if [ "$1" = "autoconf" ]; then $MYSQL --version 2>/dev/null >/dev/null if [ $? -eq 0 ] then $MYSQL $MYSQLOPTS -e 'show open tables' 2>/dev/null >/dev/null if [ $? -eq 0 ] then echo yes exit 0 else echo "no (could not connect to mysql)" fi else echo "no (mysqladmin not found)" fi exit 1 fi if [ "$1" = "config" ]; then echo 'graph_title MySQL Open table by database' echo 'graph_vlabel Open Tables' echo 'graph_category mysql' echo 'graph_args --base 1000' num=0; for i in $BDD; do echo 'opentables_'$i'.label '$i echo 'opentables_'$i'.min 0' # echo 'opentables'$i'.type DERIVE' if [ $num = "0" ] then echo 'opentables_'$i'.draw AREA' else echo 'opentables_'$i'.draw STACK' fi num=1; done exit 0 fi $MYSQL $MYSQLOPTS -e 'show open tables' 2>/dev/null 1>$TMPFILE echo $result for i in $BDD; do res=`grep $i $TMPFILE | wc -l` echo 'opentables_'$i'.value '$res done
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