CentOS7上安装PXC

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一.环境准备

环境：vm虚拟机器,
系统：centos7 

[[email protected] mysql3308]# cat /etc/redhat-release 
CentOS Linux release 7.2.1511 (Core)

关闭iptables，firewalld 和selinux,3台服务器保证时间同步

集群名 pxc-test
节点1  10.0.0.6
节点2  10.0.0.7
节点3  10.0.0.8
修改主机名：
[[email protected] ~]# cat /etc/hostname 
pxc01
[[email protected] ~]# cat /etc/hostname 
pxc02
[[email protected] ~]# cat /etc/hostname 
pxc03
本地host文件解析：
[[email protected] ~]# cat /etc/hosts
10.0.0.6 pxc01
10.0.0.7 pxc02
10.0.0.131 pxc03

二、mysql-pxc介绍

2.1安装包下载介绍:

下载包说明：

https://www.percona.com/downloads/Percona-XtraDB-Cluster-LATEST/
一般是根据服务器上openssl的版本来选择对应的二进制安装包版本的

[[email protected] ~]# rpm -qa|grep openssl
openssl-libs-1.0.2k-16.el7.x86_64
openssl-1.0.2k-16.el7.x86_64
openssl-devel-1.0.2k-16.el7.x86_64
openssl098e-0.9.8e-29.el7.centos.2.x86_64

根据服务器上的openssl版本来选择1.0.2的版本。

技术图片
安装mysql-pxc实例
节点1 10.0.0.6安装mysql-pxc实例

官方下载地址：
https://www.percona.com/downloads/Percona-XtraDB-Cluster-LATEST/

版本安装错了，要解决一堆的版本兼容问题

2.2安装过程：

下载链接:

https://www.percona.com/downloads/Percona-XtraDB-Cluster-LATEST/Percona-XtraDB-Cluster-5.7.22-29.26/binary/tarball/Percona-XtraDB-Cluster-5.7.22-rel22-29.26.1.Linux.x86_64.ssl102.tar.gz

解压：

[[email protected] ~]# tar xf Percona-XtraDB-Cluster-5.7.24-rel26-31.33.1.Linux.x86_64.ssl102.tar.gz -C /usr/local/
[[email protected] local]# mv Percona-XtraDB-Cluster-5.7.24-rel26-31.33.1.Linux.x86_64.ssl102 mysqlpxc

查看安装mysql时是否缺少相关的依赖：

[[email protected] local]# ldd /usr/local/mysqlpxc/bin/mysqld
/usr/local/mysqlp/bin/mysqld: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.21‘ not found (required by /usr/local/mysqlp/bin/mysqld)
/usr/local/mysqlp/bin/mysqld: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20‘ not found (required by /usr/local/mysqlp/bin/mysqld)
    linux-vdso.so.1 =>  (0x00007ffdcd57e000)
    libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f788de99000)
    libaio.so.1 => /lib64/libaio.so.1 (0x00007f788dc97000)
    libnuma.so.1 => /lib64/libnuma.so.1 (0x00007f788da8a000)
    libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007f788d853000)
    libssl.so.1.1 => not found
    libcrypto.so.1.1 => not found
    libdl.so.2 => /lib64/libdl.so.2 (0x00007f788d64e000)
    libz.so.1 => /lib64/libz.so.1 (0x00007f788d438000)
    librt.so.1 => /lib64/librt.so.1 (0x00007f788d22f000)
    libatomic.so.1 => not found
    libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007f788cf27000)
    libm.so.6 => /lib64/libm.so.6 (0x00007f788cc24000)
    libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f788ca0e000)
    libc.so.6 => /lib64/libc.so.6 (0x00007f788c64d000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f788fd9f000)
    libfreebl3.so => /lib64/libfreebl3.so (0x00007f788c449000)
You have new mail in /var/spool/mail/root
[[email protected] local]#

也就是下面的not found :

[[email protected] local]#  ldd /usr/local/mysqlpxc/bin/mysqld|grep ‘not found‘
/usr/local/mysqlpxc/bin/mysqld: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.21‘ not found (required by /usr/local/mysqlpxc/bin/mysqld)
/usr/local/mysqlpxc/bin/mysqld: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20‘ not found (required by /usr/local/mysqlpxc/bin/mysqld)
    libssl.so.1.1 => not found
    libcrypto.so.1.1 => not found
    libatomic.so.1 => not found
[[email protected] local]#

查看当前服务器上GLIBCXX存在的版本，发现确实不存在_3.4.21和_3.4.20版本

[[email protected] local]# strings /lib64/libstdc++.so.6  | grep GLIBCXX
GLIBCXX_3.4
GLIBCXX_3.4.1
GLIBCXX_3.4.2
GLIBCXX_3.4.3
GLIBCXX_3.4.4
GLIBCXX_3.4.5
GLIBCXX_3.4.6
GLIBCXX_3.4.7
GLIBCXX_3.4.8
GLIBCXX_3.4.9
GLIBCXX_3.4.10
GLIBCXX_3.4.11
GLIBCXX_3.4.12
GLIBCXX_3.4.13
GLIBCXX_3.4.14
GLIBCXX_3.4.15
GLIBCXX_3.4.16
GLIBCXX_3.4.17
GLIBCXX_3.4.18
GLIBCXX_3.4.19
GLIBCXX_DEBUG_MESSAGE_LENGTH

解决办法：
参考文档：
https://www.cnblogs.com/litifeng/p/8492251.html

1、下载gcc： wget http://ftp.gnu.org/gnu/gcc/gcc-7.3.0/gcc-7.3.0.tar.xz
2、解压gcc：
yum -y install xz
3、编译安装：
tar -xf gcc-7.3.0.tar.xz -C /root
cd /root/gcc-7.3.0
安装gcc的依赖软件，gcc的软件包内提供了自动下载需要软件的脚本：

[email protected] gcc-7.3.0]# ./contrib/download_prerequisites
2019-02-24 05:35:29 URL: ftp://gcc.gnu.org/pub/gcc/infrastructure/gmp-6.1.0.tar.bz2 [2383840] -> "./gmp-6.1.0.tar.bz2" [1]
2019-02-24 05:35:33 URL: ftp://gcc.gnu.org/pub/gcc/infrastructure/mpfr-3.1.4.tar.bz2 [1279284] -> "./mpfr-3.1.4.tar.bz2" [1]
2019-02-24 05:35:42 URL: ftp://gcc.gnu.org/pub/gcc/infrastructure/mpc-1.0.3.tar.gz [669925] -> "./mpc-1.0.3.tar.gz" [1]
2019-02-24 05:35:58 URL: ftp://gcc.gnu.org/pub/gcc/infrastructure/isl-0.16.1.tar.bz2 [1626446] -> "./isl-0.16.1.tar.bz2" [1]
gmp-6.1.0.tar.bz2: OK
mpfr-3.1.4.tar.bz2: OK
mpc-1.0.3.tar.gz: OK
isl-0.16.1.tar.bz2: OK
All prerequisites downloaded successfully.
[[email protected] gcc-7.3.0]#

4.编译gcc:

./configure -enable-checking=release -enable-languages=c,c++ -disable-multilib
 echo $?

make //多核电脑可以添加 “-j4” ：make对多核处理器的优化选项，此步骤非常耗时
make install

...................................................
....................................................
make[3]: Leaving directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libquadmath‘
make[2]: Leaving directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libquadmath‘
Checking multilib configuration for libitm...
make[2]: Entering directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libitm‘
make  all-recursive
make[3]: Entering directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libitm‘
Making all in testsuite
make[4]: Entering directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libitm/testsuite‘
make[4]: Nothing to be done for `all‘.
make[4]: Leaving directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libitm/testsuite‘
make[4]: Entering directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libitm‘
true  DO=all multi-do # make
make[4]: Leaving directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libitm‘
make[3]: Leaving directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libitm‘
make[2]: Leaving directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libitm‘
Checking multilib configuration for libatomic...
make[2]: Entering directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libatomic‘
make  all-recursive
make[3]: Entering directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libatomic‘
Making all in testsuite
make[4]: Entering directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libatomic/testsuite‘
make[4]: Nothing to be done for `all‘.
make[4]: Leaving directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libatomic/testsuite‘
make[4]: Entering directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libatomic‘
true  DO=all multi-do # make
make[4]: Leaving directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libatomic‘
make[3]: Leaving directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libatomic‘
make[2]: Leaving directory `/root/gcc-7.3.0/x86_64-pc-linux-gnu/libatomic‘
make[1]: Leaving directory `/root/gcc-7.3.0‘
[[email protected] gcc-7.3.0]# 
[[email protected] gcc-7.3.0]# echo $?
0

ls /usr/local/bin | grep gcc
5.配置gcc:

[[email protected] ~]# find /root/gcc-7.3.0/ -name "libstdc++.so*"
/root/gcc-7.3.0/x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.24
/root/gcc-7.3.0/x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6
/root/gcc-7.3.0/x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so
/root/gcc-7.3.0/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.24
/root/gcc-7.3.0/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6
/root/gcc-7.3.0/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so
/root/gcc-7.3.0/stage1-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.24
/root/gcc-7.3.0/stage1-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6
/root/gcc-7.3.0/stage1-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so
cd /usr/lib64
cp /root/gcc-7.3.0/stage1-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.24  ./

mv libstdc++.so.6 libstdc++.so.6.old
[[email protected] lib64]# cp /root/gcc-7.3.0/stage1-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.24  ./
[[email protected] lib64]# mv libstdc++.so.6 libstdc++.so.6.old
[[email protected] lib64]# ln -sv libstdc++.so.6.0.24 libstdc++.so.6
‘libstdc++.so.6’ -> ‘libstdc++.so.6.0.24’
[[email protected] lib64]# ll libstdc++.so.6
lrwxrwxrwx 1 root root 19 Feb 24 02:22 libstdc++.so.6 -> libstdc++.so.6.0.24
[[email protected] lib64]# 
[[email protected] ~]# strings /lib64/libstdc++.so.6  | grep GLIBCXX
GLIBCXX_3.4
GLIBCXX_3.4.1
GLIBCXX_3.4.2
GLIBCXX_3.4.3
GLIBCXX_3.4.4
GLIBCXX_3.4.5
GLIBCXX_3.4.6
GLIBCXX_3.4.7
GLIBCXX_3.4.8
GLIBCXX_3.4.9
GLIBCXX_3.4.10
GLIBCXX_3.4.11
GLIBCXX_3.4.12
GLIBCXX_3.4.13
GLIBCXX_3.4.14
GLIBCXX_3.4.15
GLIBCXX_3.4.16
GLIBCXX_3.4.17
GLIBCXX_3.4.18
GLIBCXX_3.4.19
GLIBCXX_3.4.20
GLIBCXX_3.4.21
GLIBCXX_3.4.22
GLIBCXX_3.4.23
GLIBCXX_3.4.24
GLIBCXX_DEBUG_MESSAGE_LENGTH

正常了

继续查看缺少的依赖库文件：

[[email protected] local]#  ldd /usr/local/mysqlpxc/bin/mysqld|grep ‘not found‘
    libssl.so.1.1 => not found
    libcrypto.so.1.1 => not found
    libatomic.so.1 => not found
[[email protected] local]#

解决上面的这2个问题：

libssl.so.1.1 => not found
    libcrypto.so.1.1 => not found
openssl version -a
OpenSSL 1.0.2k-fips  26 Jan 2017
mv /usr/bin/openssl /usr/bin/openssl.bak 
[[email protected] ~]# ll  /usr/local/bin/openssl
-rwxr-xr-x 1 root root 672829 Feb 24 05:19 /usr/local/bin/openssl
[[email protected] ~]#
[[email protected] ~]#cp /usr/local/bin/openssl /usr/bin/
[[email protected] ~]# ll /usr/local/lib64/libssl.so.1.1
-rwxr-xr-x 1 root root 520910 Feb 24 05:19 /usr/local/lib64/libssl.so.1.1
[[email protected] ~]# ll /usr/local/lib64/libcrypto.so.1.1
-rwxr-xr-x 1 root root 2929061 Feb 24 05:19 /usr/local/lib64/libcrypto.so.1.1
[[email protected] ~]#
[[email protected] ~]# ln -s /usr/local/lib64/libssl.so.1.1 /usr/lib64/libssl.so.1.1
[[email protected] ~]# ln -s /usr/local/lib64/libcrypto.so.1.1 /usr/lib64/libcrypto.so.1.1
[[email protected] ~]#  openssl version -a
OpenSSL 1.1.0c  10 Nov 2016
built on: reproducible build, date unspecified
platform: linux-x86_64
compiler: gcc -DZLIB -DDSO_DLFCN -DHAVE_DLFCN_H -DNDEBUG -DOPENSSL_THREADS -DOPENSSL_NO_STATIC_ENGINE -DOPENSSL_PIC -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DRC4_ASM -DMD5_ASM -DAES_ASM -DVPAES_ASM -DBSAES_ASM -DGHASH_ASM -DECP_NISTZ256_ASM -DPOLY1305_ASM -DOPENSSLDIR=""/usr/local/ssl"" -DENGINESDIR=""/usr/local/lib64/engines-1.1""  -Wa,--noexecstack
OPENSSLDIR: "/usr/local/ssl"
ENGINESDIR: "/usr/local/lib64/engines-1.1"
[[email protected] ~]#

解决这个问题：
libatomic.so.1 => not found

yum install libatomic* -y

检查mysql 的依赖库：一切正常


[[email protected] local]# ldd /usr/local/mysqlpxc/bin/mysqld
    linux-vdso.so.1 =>  (0x00007ffc1f18a000)
    libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f11a3a3f000)
    libaio.so.1 => /lib64/libaio.so.1 (0x00007f11a383d000)
    libnuma.so.1 => /lib64/libnuma.so.1 (0x00007f11a3630000)
    libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007f11a33f9000)
    libssl.so.1.1 => /lib64/libssl.so.1.1 (0x00007f11a318b000)
    libcrypto.so.1.1 => /lib64/libcrypto.so.1.1 (0x00007f11a2d07000)
    libdl.so.2 => /lib64/libdl.so.2 (0x00007f11a2b03000)
    libz.so.1 => /lib64/libz.so.1 (0x00007f11a28ed000)
    librt.so.1 => /lib64/librt.so.1 (0x00007f11a26e4000)
    libatomic.so.1 => /lib64/libatomic.so.1 (0x00007f11a24dc000)
    libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007f11a215a000)
    libm.so.6 => /lib64/libm.so.6 (0x00007f11a1e57000)
    libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f11a1c41000)
    libc.so.6 => /lib64/libc.so.6 (0x00007f11a1880000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f11a5945000)
    libfreebl3.so => /lib64/libfreebl3.so (0x00007f11a167c000)
[[email protected] local]#

3.初始化mysql-pxc

[[email protected] mysql3306]# /usr/local/mysqlpxc/bin/mysqld --defaults-file=/data/mysql/mysql3306/my3306.cnf  --initialize 
[[email protected] mysql3306]#

生产临时密码：

[[email protected] logs]# grep temporary  /data/mysql/mysql3306/logs/error.log
2019-02-24T17:07:47.224848+08:00 1 [Note] A temporary password is generated for [email protected]: )rlngyf%#2cS
[[email protected] logs]#

启动pxc集群的第一个节点：启动第一个节点必须带参数--wsrep-new-cluster，其他节点启动不需要带

/usr/local/mysqlpxc/bin/mysqld_safe --defaults-file=/data/mysql/mysql3308/my3308.cnf --wsrep-new-cluster &
或者：
/usr/local/mysqlpxc/bin/mysqld --defaults-file=/data/mysql/mysql3308/my3308.cnf  &
[[email protected] logs]# /usr/local/mysqlpxc/bin/mysqld_safe --defaults-file=/data/mysql/mysql3308/my3308.cnf --wsrep-new-cluster &
[1] 7262
You have new mail in /var/spool/mail/root
[[email protected] logs]# 
[[email protected] logs]# 2019-02-24T09:14:15.111926Z mysqld_safe Logging to ‘/data/mysql/mysql3308/logs/error.log‘.
2019-02-24T09:14:15.134183Z mysqld_safe Logging to ‘/data/mysql/mysql3308/logs/error.log‘.
2019-02-24T09:14:15.215383Z mysqld_safe Starting mysqld daemon with databases from /data/mysql/mysql3308/data
2019-02-24T09:14:15.245022Z mysqld_safe Skipping wsrep-recover for empty datadir: /data/mysql/mysql3308/data
2019-02-24T09:14:15.272304Z mysqld_safe Assigning 00000000-0000-0000-0000-000000000000:-1 to wsrep_start_position

[[email protected] logs]# 

[[email protected] logs]# ss -lntup|grep mysql
tcp    LISTEN     0      128       *:4567                  *:*                   users:(("mysqld",pid=8516,fd=11))
tcp    LISTEN     0      128      :::3306                 :::*                   users:(("mysqld",pid=8516,fd=33))
[[email protected] logs]#

登录pxc mysql 报错：

[[email protected] local]# /usr/local/mysqlpxc/bin/mysql -uroot -p
 mysql: error while loading shared libraries: libreadline.so.6: cannot open shared object file: No such file or directory
[[email protected] local]# ldd /usr/local/mysqlpxc/bin/mysql
ldd: ./mysql: not regular file
[[email protected] local]# ldd /usr/bin/mysql
    linux-vdso.so.1 =>  (0x00007ffd38da9000)
    libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f91bc012000)
    libreadline.so.6 => not found

继续百度看到这个地址：
https://blog.51cto.com/10742668/1948451

 yum install -y readline-devel readline

[[email protected] local]# rpm -qa|grep readline*

readline-devel-6.2-10.el7.x86_64
readline-6.2-10.el7.x86_64

[[email protected] local]# ll /usr/lib64/libreadline.so*
lrwxrwxrwx 1 root root     28 Feb 24 20:58 /usr/lib64/libreadline.so -> ../../lib64/libreadline.so.6
lrwxrwxrwx 1 root root     18 Feb 24 20:58 /usr/lib64/libreadline.so.6 -> libreadline.so.6.2
-rwxr-xr-x 1 root root 285240 Aug  2  2017 /usr/lib64/libreadline.so.6.2
[[email protected] local]# find / -name ‘libreadline.so*‘
/usr/lib64/libreadline.so.6.2
/usr/lib64/libreadline.so
/usr/lib64/libreadline.so.6
[[email protected] local]# ldd /usr/local/mysqlpxc/bin/mysql 
    linux-vdso.so.1 =>  (0x00007ffd0a962000)
    libpthread.so.0 => /lib64/libpthread.so.0 (0x00007efdb1f80000)
    libreadline.so.6 => /lib64/libreadline.so.6 (0x00007efdb1d3a000)
    libncurses.so.5 => /lib64/libncurses.so.5 (0x00007efdb1b12000)
    libtinfo.so.5 => /lib64/libtinfo.so.5 (0x00007efdb18e8000)
    libz.so.1 => /lib64/libz.so.1 (0x00007efdb16d2000)
    librt.so.1 => /lib64/librt.so.1 (0x00007efdb14c9000)
    libssl.so.10 => /lib64/libssl.so.10 (0x00007efdb1257000)
    libcrypto.so.10 => /lib64/libcrypto.so.10 (0x00007efdb0df6000)
    libdl.so.2 => /lib64/libdl.so.2 (0x00007efdb0bf1000)
    libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007efdb086f000)
    libm.so.6 => /lib64/libm.so.6 (0x00007efdb056d000)
    libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007efdb0356000)
    libc.so.6 => /lib64/libc.so.6 (0x00007efdaff89000)
    /lib64/ld-linux-x86-64.so.2 (0x00007efdb21a5000)
    libgssapi_krb5.so.2 => /lib64/libgssapi_krb5.so.2 (0x00007efdafd3c000)
    libkrb5.so.3 => /lib64/libkrb5.so.3 (0x00007efdafa52000)
    libcom_err.so.2 => /lib64/libcom_err.so.2 (0x00007efdaf84e000)
    libk5crypto.so.3 => /lib64/libk5crypto.so.3 (0x00007efdaf633000)
    libkrb5support.so.0 => /lib64/libkrb5support.so.0 (0x00007efdaf423000)
    libkeyutils.so.1 => /lib64/libkeyutils.so.1 (0x00007efdaf21f000)
    libresolv.so.2 => /lib64/libresolv.so.2 (0x00007efdaf006000)
    libselinux.so.1 => /lib64/libselinux.so.1 (0x00007efdaedde000)
    libpcre.so.1 => /lib64/libpcre.so.1 (0x00007efdaeb7c000)
You have new mail in /var/spool/mail/root
[[email protected] local]#

到此处不在报错，问题得以解决。太郁闷了。

[[email protected] mysql3308]# /usr/local/mysqlpxc/bin/mysql -uroot -p -S /tmp/mysql3308.sock
Enter password: 

([email protected]‘mgr01‘:mysql3308.sock)[(none)]>alter user user() identified by ‘654321‘;
Query OK, 0 rows affected (0.06 sec)

([email protected]‘mgr01‘:mysql3308.sock)[(none)]>q
cp /usr/local/mysqlpxc/bin/mysql  /usr/bin/
[[email protected] ~]# which mysql
/usr/bin/mysql
[[email protected] ~]# cat .my.cnf 
[mysql]
user=root
password=654321
prompt="(\[email protected]\‘mgr01‘:\p)[\d]>"
[[email protected] ~]# 

[[email protected] ~]# mysql -S /tmp/mysql3308.sock

安装到此结束

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