MySQL5.6.12造成CPU的使用率 2000%的原因

來源:互聯網
上載者:User

Top得出CPU使用率超高: 
top - 16:41:04 up 184 days, 21:31,  2 users,  load average: 19.97, 18.38, 18.36
Tasks: 584 total,   1 running, 583 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.0%us,  0.0%sy, 41.2%ni, 58.7%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:  65923008k total, 34622724k used, 31300284k free,   315684k buffers
Swap: 33030136k total,        0k used, 33030136k free, 24200968k cached
 

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                                   
28518 root      20   0 1652m  62m 1172 S 2014.5  0.1  49701,58 mysql_test                                                                                              
24878 root      20   0 15416 1616  896 R  3.9  0.0   0:00.02 top                                                                                                       
    1 root      20   0 19228 1512 1220 S  0.0  0.0   0:02.95 init             
CPU使用率很高很高。
                                                                                         
[root@db-m1-slave-1 ~]# ps -eaf|grep mysql
root     24917 24834  0 16:42 pts/1    00:00:00 grep mysql
root     26452     1  0  2013 ?        00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/home/data/mysql/data --pid-file=/usr/local/mysql/mysqld.pid
mysql    27584 26452  0  2013 ?        01:56:49 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/home/data/mysql/data --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/usr/local/mysql/mysqld.log --open-files-limit=8192 --pid-file=/usr/local/mysql/mysqld.pid --socket=/usr/local/mysql/mysql.sock --port=3306
root     28518     1 99  2013 ?        2070-22:25:20 ./mysql_test --config=./cfg --threads=20 -B

看到此./mysql_test指令碼在運行,find / -name mysql_test
[root@db-m1-slave-1 ~]# find / -name mysql_test
/usr/local/mysql/test/mysql_test
[root@db-m1-slave-1 ~]# 

[root@db-m1-slave-1 test]# more mysql_test 
******** mysql_test: Not a text file ********

查詢到此mysql_test是使用了一個mysql的使用者資訊收集的外掛程式,上傳到mysql官網了,是個軟體運行資訊反饋的那種功能。
只要kill掉就沒事了。





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