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标题: CentOS8_Yum安装MySQL5.7 [打印本页]
作者: admin    时间: 2021-7-17 21:57     标题: CentOS8_Yum安装MySQL5.7

查看操作系统的信息： [root@centos8 ~]# cat /etc/redhat-release CentOS Linux release 8.2.2004 (Core) [root@centos8 ~]# uname -r 4.18.0-193.el8.x86_64 [root@centos8 ~]# hostname centos8.zhuohua.store [root@centos8 ~]# cat /etc/hostname centos8.zhuohua.store [root@centos8 ~]# ifconfig -bash: ifconfig: 未找到命令 [root@centos8 ~]# [root@centos8 ~]# dnf -y install net-tools [root@centos8 ~]# ifconfig ens160 |grep netmask |awk '{print $2}' 192.168.168.154 关闭SELinux:（默认是开启的，要关闭） setenforce 0 sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config 删除原有的MySQL： [root@centos8 ~]# dnf -y remove @mysql [root@centos8 ~]# dnf module reset mysql [root@centos8 ~]# dnf -y module disable mysql 创建一个仓库文件： [root@centos8 ~]# cat /etc/yum.repos.d/mysql-community.repo [mysql57-community] name=MySQL 5.7 Community Server baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/7/$basearch/ enabled=1 gpgcheck=0 [mysql-connectors-community] name=MySQL Connectors Community baseurl=http://repo.mysql.com/yum/mysql-connectors-community/el/7/$basearch/ enabled=1 gpgcheck=0 [mysql-tools-community] name=MySQL Tools Community baseurl=http://repo.mysql.com/yum/mysql-tools-community/el/7/$basearch/ enabled=1 gpgcheck=0 设置使用Yum安装软件包时，保存软件包到服务器本地目录：（可选） [root@centos8 ~]# vi /etc/yum.conf 追加： cachedir=/var/cache/yum/$basearch/$releasever keepcache=1 效果如下： [root@centos8 ~]# cat /etc/yum.conf [main] gpgcheck=1 installonly_limit=3 clean_requirements_on_remove=True best=True skip_if_unavailable=False cachedir=/var/cache/yum/$basearch/$releasever keepcache=1 安装MySQL5.7：（要连接公网） [root@centos8 ~]# dnf -y --enablerepo=mysql57-community install mysql-community-server 自动保存下来的软件包： [root@centos8 ~]# cd /var/cache/yum/x86_64/8/ [root@centos8 8]# find ./ -name "*.rpm" |wc -l 46 复制指定目录下的所有rpm软件包到指定目录： [root@centos8 ~]# mkdir -p /root/dir1 [root@centos8 ~]# [root@centos8 ~]# find /var/cache/yum/x86_64/8/ -name "*.rpm" |xargs cp -t /root/dir1/ [root@centos8 ~]# find /root/dir1/ -name "*.rpm" |wc -l 46 [root@centos8 ~]# du -sh /root/dir1/ 215M /root/dir1/ 可以在一台离线的新服务器上使用Yum一次性安装这些rpm软件包，从而实现MySQL5.7的安装:（使用本地光盘作为Yum源） [root@centos8 ~]# yum -y install /root/dir1/*.rpm 启动MySQL5.7： [root@centos8 ~]# systemctl start mysqld 开机自动启动MySQL5.7： [root@centos8 ~]# systemctl enable mysqld 获取数据库管理员root@localhost的初始密码： [root@centos8 ~]# cat /var/log/mysqld.log |grep 'A temporary password' 2021-07-15T16:21:11.026369Z 1 [Note] A temporary password is generated for root@localhost: y6dsvgQY+pj! 服务器本地登录MySQL： mysql -uroot -p"y6dsvgQY+pj!" 图片1.png 必须要修改数据库管理员root@localhost的密码：（密码要符合复杂性要求） mysql> ALTER USER root@'localhost' IDENTIFIED BY 'P@ssw7rd'; Query OK, 0 rows affected (0.00 sec) 数据库管理员root@localhost使用新密码重新登录MySQL： mysql -uroot -p"P@ssw7rd" 图片2.png 查看默认的用户密码策略： SHOW VARIABLES LIKE 'validate_password%'; 图片3.png 默认就有的库： show databases; 图片4.png 查看所有数据库用户及其主机信息：（以下是初始状态） select user,host from mysql.user; 图片5.png 查看数据库管理员root@localhost的权限： mysql> show grants for root@localhost; +---------------------------------------------------------------------+ | Grants for root@localhost | +---------------------------------------------------------------------+ | GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION | | GRANT PROXY ON ''@'' TO 'root'@'localhost' WITH GRANT OPTION | +---------------------------------------------------------------------+ 2 rows in set (0.00 sec) MySQL的主配置文件：（初始状态） [root@centos8 ~]# cat /etc/my.cnf |grep -v "^$" # For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html [mysqld] # # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. # innodb_buffer_pool_size = 128M # # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid 自定义MySQL的主配置文件： cat > /etc/my.cnf </var/lib/mysql/mysql.sock [mysqld] port = 3306 socket = /var/lib/mysql/mysql.sock datadir = /var/lib/mysql skip-external-locking key_buffer_size = 16M max_allowed_packet = 1M table_open_cache = 64 sort_buffer_size = 512K net_buffer_length = 8K read_buffer_size = 256K read_rnd_buffer_size = 512K myisam_sort_buffer_size = 8M thread_cache_size = 8 query_cache_size = 8M tmp_table_size = 16M performance_schema_max_table_instances = 500 explicit_defaults_for_timestamp = true #skip-networking max_connections = 500 max_connect_errors = 100 open_files_limit = 65535 log-bin=mysql-bin binlog_format=mixed server-id = 1 expire_logs_days = 10 early-plugin-load = "" default_storage_engine = InnoDB innodb_file_per_table = 1 innodb_data_home_dir = /var/lib/mysql innodb_data_file_path = ibdata1:10M:autoextend innodb_log_group_home_dir = /var/lib/mysql innodb_buffer_pool_size = 16M innodb_log_file_size = 5M innodb_log_buffer_size = 8M innodb_flush_log_at_trx_commit = 1 innodb_lock_wait_timeout = 50 [mysqldump] quick max_allowed_packet = 16M [mysql] no-auto-rehash [myisamchk] key_buffer_size = 20M sort_buffer_size = 20M read_buffer_size = 2M write_buffer_size = 2M [mysqlhotcopy] interactive-timeout EOF 重启MySQL： [root@centos8 ~]# systemctl restart mysqld 根据服务器的物理内存大小更改MySQL的主配置文件的脚本： [root@centos8 ~]# cat change.sh
  1. #!/bin/bash
  3. MySQL_Opt()
  4. {
  5. MemTotal=`free -m | grep Mem | awk '{print $2}'`
  7. if [[ ${MemTotal} -gt 1024 && ${MemTotal} -lt 2048 ]]; then
  8. sed -i "s#^key_buffer_size.*#key_buffer_size = 32M#" /etc/my.cnf
  9. sed -i "s#^table_open_cache.*#table_open_cache = 128#" /etc/my.cnf
  10. sed -i "s#^sort_buffer_size.*#sort_buffer_size = 768K#" /etc/my.cnf
  11. sed -i "s#^read_buffer_size.*#read_buffer_size = 768K#" /etc/my.cnf
  12. sed -i "s#^myisam_sort_buffer_size.*#myisam_sort_buffer_size = 8M#" /etc/my.cnf
  13. sed -i "s#^thread_cache_size.*#thread_cache_size = 16#" /etc/my.cnf
  14. sed -i "s#^query_cache_size.*#query_cache_size = 16M#" /etc/my.cnf
  15. sed -i "s#^tmp_table_size.*#tmp_table_size = 32M#" /etc/my.cnf
  16. sed -i "s#^innodb_buffer_pool_size.*#innodb_buffer_pool_size = 128M#" /etc/my.cnf
  17. sed -i "s#^innodb_log_file_size.*#innodb_log_file_size = 32M#" /etc/my.cnf
  18. sed -i "s#^performance_schema_max_table_instances.*#performance_schema_max_table_instances = 1000#" /etc/my.cnf
  19. elif [[ ${MemTotal} -ge 2048 && ${MemTotal} -lt 4096 ]]; then
  20. sed -i "s#^key_buffer_size.*#key_buffer_size = 64M#" /etc/my.cnf
  21. sed -i "s#^table_open_cache.*#table_open_cache = 256#" /etc/my.cnf
  22. sed -i "s#^sort_buffer_size.*#sort_buffer_size = 1M#" /etc/my.cnf
  23. sed -i "s#^read_buffer_size.*#read_buffer_size = 1M#" /etc/my.cnf
  24. sed -i "s#^myisam_sort_buffer_size.*#myisam_sort_buffer_size = 16M#" /etc/my.cnf
  25. sed -i "s#^thread_cache_size.*#thread_cache_size = 32#" /etc/my.cnf
  26. sed -i "s#^query_cache_size.*#query_cache_size = 32M#" /etc/my.cnf
  27. sed -i "s#^tmp_table_size.*#tmp_table_size = 64M#" /etc/my.cnf
  28. sed -i "s#^innodb_buffer_pool_size.*#innodb_buffer_pool_size = 256M#" /etc/my.cnf
  29. sed -i "s#^innodb_log_file_size.*#innodb_log_file_size = 64M#" /etc/my.cnf
  30. sed -i "s#^performance_schema_max_table_instances.*#performance_schema_max_table_instances = 2000#" /etc/my.cnf
  31. elif [[ ${MemTotal} -ge 4096 && ${MemTotal} -lt 8192 ]]; then
  32. sed -i "s#^key_buffer_size.*#key_buffer_size = 128M#" /etc/my.cnf
  33. sed -i "s#^table_open_cache.*#table_open_cache = 512#" /etc/my.cnf
  34. sed -i "s#^sort_buffer_size.*#sort_buffer_size = 2M#" /etc/my.cnf
  35. sed -i "s#^read_buffer_size.*#read_buffer_size = 2M#" /etc/my.cnf
  36. sed -i "s#^myisam_sort_buffer_size.*#myisam_sort_buffer_size = 32M#" /etc/my.cnf
  37. sed -i "s#^thread_cache_size.*#thread_cache_size = 64#" /etc/my.cnf
  38. sed -i "s#^query_cache_size.*#query_cache_size = 64M#" /etc/my.cnf
  39. sed -i "s#^tmp_table_size.*#tmp_table_size = 64M#" /etc/my.cnf
  40. sed -i "s#^innodb_buffer_pool_size.*#innodb_buffer_pool_size = 512M#" /etc/my.cnf
  41. sed -i "s#^innodb_log_file_size.*#innodb_log_file_size = 128M#" /etc/my.cnf
  42. sed -i "s#^performance_schema_max_table_instances.*#performance_schema_max_table_instances = 4000#" /etc/my.cnf
  43. elif [[ ${MemTotal} -ge 8192 && ${MemTotal} -lt 16384 ]]; then
  44. sed -i "s#^key_buffer_size.*#key_buffer_size = 256M#" /etc/my.cnf
  45. sed -i "s#^table_open_cache.*#table_open_cache = 1024#" /etc/my.cnf
  46. sed -i "s#^sort_buffer_size.*#sort_buffer_size = 4M#" /etc/my.cnf
  47. sed -i "s#^read_buffer_size.*#read_buffer_size = 4M#" /etc/my.cnf
  48. sed -i "s#^myisam_sort_buffer_size.*#myisam_sort_buffer_size = 64M#" /etc/my.cnf
  49. sed -i "s#^thread_cache_size.*#thread_cache_size = 128#" /etc/my.cnf
  50. sed -i "s#^query_cache_size.*#query_cache_size = 128M#" /etc/my.cnf
  51. sed -i "s#^tmp_table_size.*#tmp_table_size = 128M#" /etc/my.cnf
  52. sed -i "s#^innodb_buffer_pool_size.*#innodb_buffer_pool_size = 1024M#" /etc/my.cnf
  53. sed -i "s#^innodb_log_file_size.*#innodb_log_file_size = 256M#" /etc/my.cnf
  54. sed -i "s#^performance_schema_max_table_instances.*#performance_schema_max_table_instances = 6000#" /etc/my.cnf
  55. elif [[ ${MemTotal} -ge 16384 && ${MemTotal} -lt 32768 ]]; then
  56. sed -i "s#^key_buffer_size.*#key_buffer_size = 512M#" /etc/my.cnf
  57. sed -i "s#^table_open_cache.*#table_open_cache = 2048#" /etc/my.cnf
  58. sed -i "s#^sort_buffer_size.*#sort_buffer_size = 8M#" /etc/my.cnf
  59. sed -i "s#^read_buffer_size.*#read_buffer_size = 8M#" /etc/my.cnf
  60. sed -i "s#^myisam_sort_buffer_size.*#myisam_sort_buffer_size = 128M#" /etc/my.cnf
  61. sed -i "s#^thread_cache_size.*#thread_cache_size = 256#" /etc/my.cnf
  62. sed -i "s#^query_cache_size.*#query_cache_size = 256M#" /etc/my.cnf
  63. sed -i "s#^tmp_table_size.*#tmp_table_size = 256M#" /etc/my.cnf
  64. sed -i "s#^innodb_buffer_pool_size.*#innodb_buffer_pool_size = 2048M#" /etc/my.cnf
  65. sed -i "s#^innodb_log_file_size.*#innodb_log_file_size = 512M#" /etc/my.cnf
  66. sed -i "s#^performance_schema_max_table_instances.*#performance_schema_max_table_instances = 8000#" /etc/my.cnf
  67. elif [[ ${MemTotal} -ge 32768 ]]; then
  68. sed -i "s#^key_buffer_size.*#key_buffer_size = 1024M#" /etc/my.cnf
  69. sed -i "s#^table_open_cache.*#table_open_cache = 4096#" /etc/my.cnf
  70. sed -i "s#^sort_buffer_size.*#sort_buffer_size = 16M#" /etc/my.cnf
  71. sed -i "s#^read_buffer_size.*#read_buffer_size = 16M#" /etc/my.cnf
  72. sed -i "s#^myisam_sort_buffer_size.*#myisam_sort_buffer_size = 256M#" /etc/my.cnf
  73. sed -i "s#^thread_cache_size.*#thread_cache_size = 512#" /etc/my.cnf
  74. sed -i "s#^query_cache_size.*#query_cache_size = 512M#" /etc/my.cnf
  75. sed -i "s#^tmp_table_size.*#tmp_table_size = 512M#" /etc/my.cnf
  76. sed -i "s#^innodb_buffer_pool_size.*#innodb_buffer_pool_size = 4096M#" /etc/my.cnf
  77. sed -i "s#^innodb_log_file_size.*#innodb_log_file_size = 1024M#" /etc/my.cnf
  78. sed -i "s#^performance_schema_max_table_instances.*#performance_schema_max_table_instances = 10000#" /etc/my.cnf
  79. fi
  80. }
  81. MySQL_Opt
复制代码
运行脚本： [root@centos8 ~]# bash change.sh 再次查看MySQL的主配置文件： [root@centos8 ~]# cat /etc/my.cnf [client] #password = your_password port = 3306 socket = /var/lib/mysql/mysql.sock [mysqld] port = 3306 socket = /var/lib/mysql/mysql.sock datadir = /var/lib/mysql skip-external-locking key_buffer_size = 32M max_allowed_packet = 1M table_open_cache = 128 sort_buffer_size = 768K net_buffer_length = 8K read_buffer_size = 768K read_rnd_buffer_size = 512K myisam_sort_buffer_size = 8M thread_cache_size = 16 query_cache_size = 16M tmp_table_size = 32M performance_schema_max_table_instances = 1000 explicit_defaults_for_timestamp = true #skip-networking max_connections = 500 max_connect_errors = 100 open_files_limit = 65535 log-bin=mysql-bin binlog_format=mixed server-id = 1 expire_logs_days = 10 early-plugin-load = "" default_storage_engine = InnoDB innodb_file_per_table = 1 innodb_data_home_dir = /var/lib/mysql innodb_data_file_path = ibdata1:10M:autoextend innodb_log_group_home_dir = /var/lib/mysql innodb_buffer_pool_size = 128M innodb_log_file_size = 32M innodb_log_buffer_size = 8M innodb_flush_log_at_trx_commit = 1 innodb_lock_wait_timeout = 50 [mysqldump] quick max_allowed_packet = 16M [mysql] no-auto-rehash [myisamchk] key_buffer_size = 32M sort_buffer_size = 768K read_buffer_size = 768K write_buffer_size = 2M [mysqlhotcopy] interactive-timeout 重启MySQL： [root@centos8 ~]# systemctl restart mysqld 查看MySQL的最大连接数： mysql> show variables like '%max_connection%'; +-----------------+-------+ | Variable_name | Value | +-----------------+-------+ | max_connections | 500 | +-----------------+-------+ 1 row in set (0.00 sec) 查看MySQL的“最大可打开表数”：（能同时打开的表的总数量） mysql> show variables like 'table_open%'; +----------------------------+-------+ | Variable_name | Value | +----------------------------+-------+ | table_open_cache | 128 | | table_open_cache_instances | 16 | +----------------------------+-------+ 2 rows in set (0.00 sec) 查看MySQL的默认存储引擎： show variables like '%storage_engine%'; 图片6.png 查看MySQL的默认字符集： show variables like '%character%'; 图片7.png show variables like '%collation%'; 图片8.png 下面，修改数据库的默认字符集为 utf8mb4_general_ci 再次查看MySQL的主配置文件： [root@centos8 ~]# cat /etc/my.cnf [client] #password = your_password port = 3306 socket = /var/lib/mysql/mysql.sock [mysqld] port = 3306 socket = /var/lib/mysql/mysql.sock datadir = /var/lib/mysql skip-external-locking key_buffer_size = 32M max_allowed_packet = 1M table_open_cache = 128 sort_buffer_size = 768K net_buffer_length = 8K read_buffer_size = 768K read_rnd_buffer_size = 512K myisam_sort_buffer_size = 8M thread_cache_size = 16 query_cache_size = 16M tmp_table_size = 32M performance_schema_max_table_instances = 1000 explicit_defaults_for_timestamp = true #skip-networking max_connections = 500 max_connect_errors = 100 open_files_limit = 65535 log-bin=mysql-bin binlog_format=mixed server-id = 1 expire_logs_days = 10 early-plugin-load = "" default_storage_engine = InnoDB innodb_file_per_table = 1 innodb_data_home_dir = /var/lib/mysql innodb_data_file_path = ibdata1:10M:autoextend innodb_log_group_home_dir = /var/lib/mysql innodb_buffer_pool_size = 128M innodb_log_file_size = 32M innodb_log_buffer_size = 8M innodb_flush_log_at_trx_commit = 1 innodb_lock_wait_timeout = 50 character-set-server = utf8mb4 collation-server = utf8mb4_general_ci [mysqldump] quick max_allowed_packet = 16M [mysql] no-auto-rehash [myisamchk] key_buffer_size = 32M sort_buffer_size = 768K read_buffer_size = 768K write_buffer_size = 2M [mysqlhotcopy] interactive-timeout 重启MySQL： [root@centos8 ~]# systemctl restart mysqld 再次查看MySQL的默认字符集： show variables like '%character%'; 图片9.png show variables like '%collation%'; 图片10.png 新建的库的默认字符集为 utf8mb4_general_ci ： create database db1; show create database db1; 图片11.png ###### 授权数据库用户zhuohua@'192.168.168.130' （密码P@ssw8rd），仅仅允许从IP地址192.168.168.130进行访问，可以对所有的库db1进行任意操作： mysql> grant all on db1.* to zhuohua@'192.168.168.130' identified by 'P@ssw8rd'; Query OK, 0 rows affected, 1 warning (0.00 sec) 查看数据库用户zhuohua@'192.168.168.130' 的权限： mysql> show grants for zhuohua@'192.168.168.130'; +----------------------------------------------------------------+ | Grants for zhuohua@192.168.168.130 | +----------------------------------------------------------------+ | GRANT USAGE ON *.* TO 'zhuohua'@'192.168.168.130' | | GRANT ALL PRIVILEGES ON `db1`.* TO 'zhuohua'@'192.168.168.130' | +----------------------------------------------------------------+ 2 rows in set (0.00 sec) 在防火墙firewalld插入规则：（ 打开TCP 3306端口 ） [root@centos8 ~]# firewall-cmd --zone=public --add-port=3306/tcp --permanent success [root@centos8 ~]# firewall-cmd --reload success 客户端使用数据库用户zhuohua@'192.168.168.130'，从IP地址192.168.168.130远程访问MySQL5.7： mysql -u"zhuohua" -p"P@ssw8rd" -h"192.168.168.154" 图片12.png 图片13.png 图片14.png 备注：按前面的配置，数据库用户zhuohua@'192.168.168.130' 只能管理库db1 ############ Jemalloc是内存分配器，可以提升MySQL/MariaDB的性能。 查看MySQL的版本： [root@centos8 ~]# mysql -V mysql Ver 14.14 Distrib 5.7.34, for Linux (x86_64) using EditLine wrapper 安装Jemalloc： [root@centos8 ~]# tar -jxf jemalloc-5.2.1.tar.bz2 tar (child): bzip2：无法 exec: 没有那个文件或目录 tar (child): Error is not recoverable: exiting now tar: Child returned status 2 tar: Error is not recoverable: exiting now [root@centos8 ~]# yum -y install bzip2 [root@centos8 ~]# tar -jxf jemalloc-5.2.1.tar.bz2 [root@centos8 ~]# cd jemalloc-5.2.1 [root@centos8 jemalloc-5.2.1]# ./configure checking for xsltproc... /usr/bin/xsltproc checking for gcc... no checking for cc... no checking for cl.exe... no configure: error: in `/root/jemalloc-5.2.1': configure: error: no acceptable C compiler found in $PATH See `config.log' for more details [root@centos8 jemalloc-5.2.1]# yum -y install gcc-c++ [root@centos8 jemalloc-5.2.1]# ./configure [root@centos8 jemalloc-5.2.1]# make -bash: make: 未找到命令 [root@centos8 jemalloc-5.2.1]# yum -y install make [root@centos8 jemalloc-5.2.1]# make [root@centos8 jemalloc-5.2.1]# make install [root@centos8 jemalloc-5.2.1]# ldconfig [root@centos8 jemalloc-5.2.1]# ln -sf /usr/local/lib/libjemalloc* /usr/lib/ 查找MySQL的环境文件： [root@centos8 ~]# cat /usr/lib/systemd/system/mysqld.service |grep -A1 "malloc" # Use this to switch malloc implementation EnvironmentFile=-/etc/sysconfig/mysql [root@centos8 ~]# vi /etc/sysconfig/mysql 写入： LD_PRELOAD=/usr/lib/libjemalloc.so 保存文件退出后，重启MySQL： [root@centos8 ~]# systemctl restart mysqld 验证MySQL是否使用了Jemalloc： [root@centos8 ~]# lsof -n |grep jemalloc -bash: lsof: 未找到命令 [root@centos8 ~]# yum -y install lsof [root@centos8 ~]# lsof -n |grep jemalloc mysqld 1079 mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1088 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1097 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1098 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1099 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1100 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1101 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1102 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1103 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1104 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1105 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1106 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1107 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1131 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1134 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1135 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1136 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1137 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1138 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1139 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1140 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1146 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1147 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1148 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1149 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1157 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 mysqld 1079 1158 mysqld mysql mem REG 253,0 6123808 201717875 /usr/local/lib/libjemalloc.so.2 相关文章： CentOS8_Yum安装MySQL8.0 CentOS8安装LNMP+phpMyAdmin CentOS8使用mailx（使用126邮箱的25端口） MySQL8.0使用Jemalloc Apache2.2+MySQL5.6+PHP5.6+phpMyAdmin+GLPI

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