寫了一個指令碼，run這個指令碼，就可以kill掉MySQL中所有sleep的client執行緒
vim killsleep.sh

#It is used to kill processlist of mysql sleep

#!/bin/sh
while :

do
n=`mysqladmin processlist -uadmin -pxxxxx|grep -i sleep |wc -l`
date=`date +%Y%m%d\[%H:%M:%S]`
echo $n

if [ "$n" -gt 10 ]
then
for i in `mysqladmin processlist -uadmin -pxxxxxx|grep -i sleep |awk '{print $2}'`
do
mysqladmin -uadmin -pxxxx kill $i
done
echo "sleep is too many I killed it " >> /tmp/sleep.log
echo "$date : $n" >> /tmp/sleep.log
fi
sleep 1
done

Kill掉MySQL中所有sleep的client執行緒

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