centos7二进制安装mysql5.7.25的进程
发布时间：2022-01-18 13:54:07 所属栏目：MySql教程 来源：互联网
导读：这篇文章主要介绍centos7二进制安装mysql5.7.25的过程，在日常操作中，相信很多人在centos7二进制安装mysql5.7.25的过程问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答centos7二进制安装mysql5.7.25的过程的疑惑有所帮助！
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这篇文章主要介绍“centos7二进制安装mysql5.7.25的过程”，在日常操作中，相信很多人在centos7二进制安装mysql5.7.25的过程问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”centos7二进制安装mysql5.7.25的过程”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！ 一.安装前系统环境检查 1.关闭selinux [root@mgr1 ~]# cat /etc/sysconfig/selinux # This file controls the state of SELinux on the system. # SELINUX= can take one of these three values: # enforcing - SELinux security policy is enforced. # permissive - SELinux prints warnings instead of enforcing. # disabled - No SELinux policy is loaded. SELINUX=disabled # SELINUXTYPE= can take one of three values: # targeted - Targeted processes are protected, # minimum - Modification of targeted policy. Only selected processes are protected. # mls - Multi Level Security protection. SELINUXTYPE=targeted 2.关闭防火墙 [root@mgr1 ~]# systemctl stop firewalld [root@mgr1 ~]# systemctl status firewalld ● firewalld.service - firewalld - dynamic firewall daemon Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled) Active: inactive (dead) since Sat 2019-02-16 19:12:54 EST; 8s ago Docs: man:firewalld(1) Process: 7054 ExecStart=/usr/sbin/firewalld --nofork --nopid $FIREWALLD_ARGS (code=exited, status=0/SUCCESS) Main PID: 7054 (code=exited, status=0/SUCCESS) Feb 16 08:46:31 mgr1 systemd[1]: Starting firewalld - dynamic firewall daemon... Feb 16 08:46:33 mgr1 systemd[1]: Started firewalld - dynamic firewall daemon. Feb 16 19:12:52 mgr1 systemd[1]: Stopping firewalld - dynamic firewall daemon... Feb 16 19:12:54 mgr1 systemd[1]: Stopped firewalld - dynamic firewall daemon. 3.centos 7 io调度系统是deadline模式，ssd硬盘需要改为noop模式 [root@mgr1 ~]# cat /sys/block/sda/queue/scheduler noop [deadline] cfq 4.操作系统的限制 [root@mgr1 default]# ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 3795 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 3795 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited 这里面最重要的两个参数是open files和max user processes 编辑/etc/security/limits.conf，加入下面的内容 * soft nproc 65535 * hard nproc 65535 * soft nofile 65535 * hard nofile 65535 5.numa 6.创建用户组和用户 [root@mgr1 default]# groupadd mysql [root@mgr1 default]# [root@mgr1 default]# useradd -g mysql mysql -s /sbin/nologin [root@mgr1 default]# （编辑：武汉站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
