大家可以帮我看下 这个报错原因吗 谢谢 tailvar/log/messages

~]# tail /var/log/messages
May 18 14:22:32  kernel: Out of memory: Kill process 3603 (httpd) score 18 or sacrifice child
May 18 14:22:32  kernel: Killed process 3603, UID 1000, (httpd) total-vm:159548kB, anon-rss:34304kB, file-rss:264kB
May 18 14:22:32  kernel: Out of memory: Kill process 3604 (httpd) score 18 or sacrifice child
May 18 14:22:32  kernel: Killed process 3604, UID 1000, (httpd) total-vm:159548kB, anon-rss:34304kB, file-rss:348kB
May 18 14:22:32  kernel: Out of memory: Kill process 3605 (httpd) score 18 or sacrifice child
May 18 14:22:32  kernel: Killed process 3605, UID 1000, (httpd) total-vm:159548kB, anon-rss:34196kB, file-rss:360kB
May 18 14:22:33  kernel: Out of memory: Kill process 3217 (httpd) score 18 or sacrifice child
May 18 14:22:33  kernel: Killed process 3217, UID 1000, (httpd) total-vm:160304kB, anon-rss:34600kB, file-rss:80kB
May 18 14:22:33  kernel: Out of memory: Kill process 3225 (httpd) score 18 or sacrifice child
May 18 14:22:33 kernel: Killed process 3225, UID 1000, (httpd) total-vm:160308kB, anon-rss:34596kB, file-rss:172kB主要问题 mysql 总是停止