Php 具有0.5G内存的Centos7.0上LNMP的最佳配置

我在vps上运行shodowsocks和wordpress

VPS配置

Centos7.0，0.5G内存+1个CPU

服务器

PHP 5.4.16+Nginx 1.6.3+MariaDB 5.5.44

但我的马里亚布总是想死，当我开始马里亚布

系统控制启动

结果

> Job for mariadb.service failed. See 'systemctl status mariadb.service' and 'journalctl -xn' for details.

> -- Logs begin at 日 2015-11-08 06:23:57 EST, end at 三 2015-11-11 00:42:58 EST. --
11月 11 00:27:21 jack sshd[10936]: Failed password for invalid user pi from 104.233.81.149 port 53083 ssh2
11月 11 00:27:21 jack sshd[10936]: Received disconnect from 104.233.81.149: 11: Bye Bye [preauth]
11月 11 00:40:43 jack kernel: Ack 2451881106 before 2451884026:2451898626
11月 11 00:42:57 jack systemd[1]: Starting MariaDB database server...
-- Subject: Unit mariadb.service has begun with start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- Unit mariadb.service has begun starting up.
11月 11 00:42:57 jack mysqld_safe[10968]: 151111 00:42:57 mysqld_safe Logging to '/var/lib/mysql/jack.err'.
11月 11 00:42:57 jack mysqld_safe[10968]: 151111 00:42:57 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
11月 11 00:42:57 jack mysqld_safe[10968]: 151111 00:42:57 mysqld_safe mysqld from pid file /var/lib/mysql/jack.pid ended
11月 11 00:42:58 jack systemd[1]: mariadb.service: control process exited, code=exited status=1
11月 11 00:42:58 jack systemd[1]: Failed to start MariaDB database server.
-- Subject: Unit mariadb.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- Unit mariadb.service has failed.
-- The result is failed.
11月 11 00:42:58 jack systemd[1]: Unit mariadb.service entered failed state.

跑

systemctl状态mariadb.service

结果

> mariadb.service - MariaDB database server
   Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled)
   Active: failed (Result: exit-code) since 三 2015-11-11 00:42:58 EST; 14s ago
  Process: 10969 ExecStartPost=/usr/libexec/mariadb-wait-ready $MAINPID (code=exited, status=1/FAILURE)
  Process: 10968 ExecStart=/usr/bin/mysqld_safe --basedir=/usr (code=exited, status=0/SUCCESS)
  Process: 10941 ExecStartPre=/usr/libexec/mariadb-prepare-db-dir %n (code=exited, status=0/SUCCESS)
 Main PID: 10968 (code=exited, status=0/SUCCESS)
11月 11 00:42:57 jack mysqld_safe[10968]: 151111 00:42:57 mysqld_safe Logging to '/var/lib/mysql/jack.err'.
11月 11 00:42:57 jack mysqld_safe[10968]: 151111 00:42:57 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
11月 11 00:42:57 jack mysqld_safe[10968]: 151111 00:42:57 mysqld_safe mysqld from pid file /var/lib/mysql/jack.pid ended
11月 11 00:42:58 jack systemd[1]: mariadb.service: control process exited, code=exited status=1
11月 11 00:42:58 jack systemd[1]: Failed to start MariaDB database server.
11月 11 00:42:58 jack systemd[1]: Unit mariadb.service entered failed state.

跑

journalctl-xn

结果

> Job for mariadb.service failed. See 'systemctl status mariadb.service' and 'journalctl -xn' for details.

> -- Logs begin at 日 2015-11-08 06:23:57 EST, end at 三 2015-11-11 00:42:58 EST. --
11月 11 00:27:21 jack sshd[10936]: Failed password for invalid user pi from 104.233.81.149 port 53083 ssh2
11月 11 00:27:21 jack sshd[10936]: Received disconnect from 104.233.81.149: 11: Bye Bye [preauth]
11月 11 00:40:43 jack kernel: Ack 2451881106 before 2451884026:2451898626
11月 11 00:42:57 jack systemd[1]: Starting MariaDB database server...
-- Subject: Unit mariadb.service has begun with start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- Unit mariadb.service has begun starting up.
11月 11 00:42:57 jack mysqld_safe[10968]: 151111 00:42:57 mysqld_safe Logging to '/var/lib/mysql/jack.err'.
11月 11 00:42:57 jack mysqld_safe[10968]: 151111 00:42:57 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
11月 11 00:42:57 jack mysqld_safe[10968]: 151111 00:42:57 mysqld_safe mysqld from pid file /var/lib/mysql/jack.pid ended
11月 11 00:42:58 jack systemd[1]: mariadb.service: control process exited, code=exited status=1
11月 11 00:42:58 jack systemd[1]: Failed to start MariaDB database server.
-- Subject: Unit mariadb.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- Unit mariadb.service has failed.
-- The result is failed.
11月 11 00:42:58 jack systemd[1]: Unit mariadb.service entered failed state.

我不知道如何优化配置，我使用my-small.cnf进行配置。

---

是否有适合我的vps的最佳配置，非常感谢。

这是mysqld.err的内容吗？在当时的VPS中，除了mariadb之外，您还有其他的东西吗？/etc/my.cnf中缓冲区的值是多少？我在VPS中运行nginx+php+mariadb。然后我使用my-small.cnf作为my.cnf，它工作得很好。非常感谢你。