云计算1+X平台运维与开发认证（初级）操作题详解

操作题（详解）

在xserver1、xserver2上安装mariadb数据库，并配置为主从数据库（xserver1为主节点、xserver2为从节点），实现两个数据库的主从同步。配置完毕后，请在xserver2上的数据库中执⾏“show slave status \G”命令查询从节点复制状态，将查询到的结果以⽂本形式提交到答题框。

#server1主

[root@xserver1 ~]#yum install mariadb-server mariadb -y

[root@xserver1 ~]# vi /etc/myf

[mysqld]

server-id=1

log-bin=mysql-bin

datadir=/var/lib/mysql

天燃气燃烧机

socket=/var/lib/mysql/mysql.sock

# Disabling symbolic-links is recommended to prevent assorted security risks

symbolic-links=0

"/etc/myf" 21L, 600C written

[root@xserver1 ~]# systemctl restart mariadb

#server2从

[root@xserver2 ~]#yum install -y mariadb mariadb-server

[root@xserver2 ~]# vi /etc/myf

[mysqld]ups检测

server-id = 2

log-bin=mysql-bin

datadir=/var/lib/mysql

socket=/var/lib/mysql/mysql.sock

[root@xserver2 ~]# systemctl restart mariadb

#server1主

[root@xserver1 ~]# mysql

Welcome to the MariaDB monitor. Commands end with ; or \g.

Your MariaDB connection id is 2

Server version: 5.5.56-MariaDB MariaDB Server

Type 'help;' or '\h'for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> flush tables with read lock;

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]>exit

Bye

[root@xserver1 ~]# mysql

Welcome to the MariaDB monitor. Commands end with ; or \g.

Your MariaDB connection id is 3

Server version: 5.5.56-MariaDB MariaDB Server

Type 'help;' or '\h'for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> grant replication slave on *.* to 'yzq'@'192.168.182.129' identified by '000000';

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> show master status;

+------------------+----------+--------------+------------------+

+------------------+----------+--------------+------------------+

| mysql-bin.000003 | 400 |||

+------------------+----------+--------------+------------------+

1 row in set(0.00 sec)

#server2从

[root@xserver2 ~]# mysql

Welcome to the MariaDB monitor. Commands end with ; or \g.

Your MariaDB connection id is 2

Server version: 5.5.56-MariaDB MariaDB Server

Type 'help;' or '\h'for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> change master to master_host='192.168.182.128',master_user='yzq',master_password='000000',master_log_file='mysql-bin.000003',m aster_log_pos=400;

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> slave start;

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> show slave status\G

*************************** 1. row ***************************

Slave_IO_State: Waiting for master to send event

Master_Host: 192.168.182.128

Master_User: yzq

Master_Port: 3306

Connect_Retry: 60

Master_Log_File: mysql-bin.000003

Read_Master_Log_Pos: 400

Relay_Log_File: mariadb-relay-bin.000002

Relay_Log_Pos: 529

Relay_Master_Log_File: mysql-bin.000003

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

Replicate_Do_DB:

Replicate_Ignore_DB:二维液相谱

Replicate_Do_Table:

Replicate_Ignore_Table:

Replicate_Wild_Do_Table:

Replicate_Wild_Ignore_Table:

Last_Errno: 0

Last_Error:

Skip_Counter: 0

Exec_Master_Log_Pos: 400

Relay_Log_Space: 825

Until_Condition: None

Until_Log_File:

Until_Log_Pos: 0

Master_SSL_Allowed: No

Master_SSL_CA_File:

Master_SSL_CA_Path:

Master_SSL_Cert:

Master_SSL_Cipher:

Master_SSL_Key:

Seconds_Behind_Master: 0

Master_SSL_Verify_Server_Cert: No

Last_IO_Errno: 0

Last_IO_Error:

硅胶分条机Last_SQL_Errno: 0

Last_SQL_Error:

Replicate_Ignore_Server_Ids:

Master_Server_Id: 1

1 row in set(0.00 sec)

MariaDB [(none)]>

Mariadb

使⽤VMware软件和提供的CentOS-7-x86_64-DVD-1511.iso创建虚拟机，⾃⾏配置好⽹络和YUM源，安装mariadb数据库，安装完毕后登录数据库，查询当前系统的时间和⽤户。依次将操作命令和返回结果以⽂本形式提交到答题框。(数据库⽤户名root，密码000000；关于数据库的命令均使⽤⼩写)

[root@xserver ~]# cat /pos.po

[centos]

name=centos

baseurl=file:///opt/centos

gpgcheck=0

enabled=1

[root@xserver ~]# yum install -y mariadb mariadb-server

[root@xserver ~]# mysql -uroot -p000000

Welcome to the MariaDB monitor. Commands end with ; or \g.

Your MariaDB connection id is 46

Server version: 10.1.17-MariaDB MariaDB Server

m1卡Type 'help;' or '\h'for help. Type '\c' to clear the current input statement.

MariaDB [(none)]>select sysdate();

+---------------------+

| sysdate()|

+---------------------+

| 2020-12-07 10:17:33 |

+---------------------+

1 row in set(0.00 sec)

MariaDB [(none)]>select user();

+----------------+

| user()|

+----------------+

| root@localhost |

+----------------+

1 row in set(0.00 sec)

OpenStack题

OpenStack Neutron管理

使⽤VMWare软件启动提供的opensatckallinone镜像，⾃⾏检查openstack中各服务的状态，若有问题⾃⾏排查。在dashboard界⾯创建云主机外部⽹络ext-net。⼦⽹为ext-subnet，云主机浮动IP可⽤⽹段为192.168.200.100~192.168.200.200，⽹关为

192.168.200.1。创建云主机内部⽹络int-net1，⼦⽹为int-subnet1，云主机⼦⽹IP可⽤⽹段为10.0.0.100 ~ 10.0.0.200，⽹关为10.0.0.1。添加名为extrouter的路由器，添加⽹关在ext-net⽹络，添加内部端⼝到int-net1⽹络，完成内部⽹络int-net1和外部⽹络的连通。将执⾏neutron router-show ext-router命令所返回的结果以⽂本形式提交到答题框。

（1）在管理员⽹络⾥创建外部⽹ext-net

（2）创建外部⽹络⼦⽹ext-subnet

（3）创建内部⽹络int-net1

（4）创建内部⽹络⼦⽹int-subnet1

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