欢迎来到 GreatSQL社区分享的MySQL技术文章,如有疑问或想学习的内容,可以在下方评论区留言,看到后会进行解答

一、需求背景

查询Percona官方手册,Xtrabackup 8.0可以备份MySQL 8.0以上。

二、环境准备

由于在中标麒麟ky10系统上直接编译报gcc等错误,所以需要在ARM下准备CentOS系统。

中标麒麟ky10的内核为4.19,而CentOS 7的内核为3.xx,CentOS 8的内核为4.18,故需要在CentOS 8的操作系统进行编译,编译完成后拿到中标麒麟ky10中使用。

2.1 检查系统架构及版本

  Shell> cat /etc/redhat-release
CentOS Linux release 8.1.1911 (Core)
Shell> uname -srm
Linux 4.18.0-147.el8.aarch64 aarch64

2.2 下载源码包

web下载地址:

shell操作:

 Shell> cd /root
Shell>wget https://github.com/percona/percona-xtrabackup/archive/refs/tags/percona-xtrabackup-8.0.25-17.tar.gz

2.3 配置CentOS 8的yum源

Shell> mkdir /etc/yum.repos.d/repo.bak
Shell> mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/repo.bak/ //检查dns是否正常 Shell> ping baidu.com //修改dns地址 Shell> vim /etc/resolv.conf
Shell> curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-8.repo
Shell> sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
Shell> sed -i.bak -e 's|^mirrorlist=|#mirrorlist=|' -e 's|^#baseurl=|baseurl=|' -e 's|http://mirror.centos.org|https://mirrors.aliyun.com|' /etc/yum.repos.d/CentOS-*.repo
Shell> dnf makecache
Shell> dnf install lrzsz

三、安装编译依赖

    Shell> dnf install cmake openssl-devel libaio libaio-devel automake autoconf bison libtool ncurses-devel libgcrypt-devel libev-devel libcurl-devel zlib-devel vim-common libarchive git centos-release-stream gcc-toolset-10-gcc-c++

PS: 以上依赖都必须安装,否则CMake时会报依赖错误。

四、编译Percona Xtrabackup

 Shell> tar xf percona-xtrabackup-percona-xtrabackup-8.0.25-17.tar.gz
Shell> mv percona-xtrabackup-percona-xtrabackup-8.0.25-17 xtrbackup-8.0.25
Shell> cd xtrbackup-8.0.25
Shell>cmake -DWITH_BOOST=./include/boost_1_73_0 -DDOWNLOAD_BOOST=ON -DBUILD_CONFIG=xtrabackup_release -DWITH_MAN_PAGES=OFF -DFORCE_INSOURCE_BUILD=1
Shell> echo $?
Shell> make -j4
Shell> echo $?
Shell> mkdir /usr/local/xtrbackup-8.0.25
Shell> make DESTDIR=/usr/local/xtrbackup-8.0.25 install
Shell> /usr/local/xtrbackup-8.0.25/usr/local
Shell> tar zcf arm_ky10_xtrabackup-8.0.25.tar.gz

五、在ARM下初始化安装MySQL

使用ARM下中标麒麟系统下的MySQL 8.0.25,并初始化。

PS:在ARM下中标麒麟系统编译MySQL 8.0.25请看之前文章。

5.1 初始化

    Shell> chown -R mysql.mysql /usr/local/mysql/
Shell> mkdir /data/mysql/3306/{data,log,tmp,conf} -p
Shell> chown -R mysql.mysql /data1/mysql/
Shell> cd /data/mysql/3306/conf
Shell> vim my.cnf
Shell> /usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/3306/conf/my.cnf --initialize

5.2 配置文件

[client]
socket = /data/mysql/3306/mysql.sock
default-character-set=utf8
[mysqld]
basedir = /usr/local/mysql
datadir = /data/mysql/3306/data
port = 3306
#skip-grant-tables
socket = /data/mysql/3306/mysql.sock
user = mysql
character_set_server=utf8
lc-messages-dir=/usr/local/mysql/share/english
plugin_dir=/usr/local/mysql/lib/plugin
default_authentication_plugin = mysql_native_password
back_log = 5000
server-id = 1803306
log-bin = /data/mysql/3306/log/mysql-bin
binlog_format = row
log-error = /data/mysql/3306/log/error.log
enforce_gtid_consistency = 1
expire_logs_days=15
gtid_mode = on
innodb_buffer_pool_size = 200m
innodb_change_buffering = all
innodb_doublewrite = true
innodb_file_per_table = 1
innodb_flush_log_at_trx_commit = 1
innodb_flush_method = O_DIRECT
innodb_log_buffer_size = 16M
innodb_log_file_size = 100m
innodb_log_files_in_group = 4
innodb_print_all_deadlocks = on
innodb_temp_data_file_path = ibtmp1:12M:autoextend:max:81920M
innodb_thread_concurrency = 0
interactive_timeout = 31536000
lock_wait_timeout = 600
log_bin_trust_function_creators = 1
log_timestamps = SYSTEM
long_query_time = 10
lower_case_table_names = 1
master_info_repository = TABLE
max_allowed_packet = 16M
max_connections = 20480
max_prepared_stmt_count = 1048576
net_read_timeout = 10000
net_write_timeout = 10000
open_files_limit = 80000
skip_external_locking = 1
skip_name_resolve = 1
sort_buffer_size = 2M
sync_binlog = 1
table_definition_cache = 5000
table_open_cache = 5000
thread_cache_size = 3000
tmpdir = /data/mysql/3306/tmp
transaction_isolation = READ-COMMITTED
wait_timeout = 31536000

5.3 启动MySQL

    Shell> /usr/local/mysql/bin/mysqld --defaults-file=/data1/mysql/3306/conf/my.cnf &

六、登录并使用sysbench压测数据

登录修改密码:

 Shell> cat /data1/mysql/3306/log/error.log |grep pass
A temporary password is generated for root@localhost: JFbdzuFta1*o Shell> /usr/local/mysql/bin/mysql -uroot -p'JFbdzuFta1*o' -S /data1/mysql/3306/mysql.sock -P3306
mysql> alter user user() identified by ‘abc123’;
Mysql> flush privileges;

创建用户:

Shell> /usr/local/mysql/bin/mysql -uroot -p'abc123' -S /data1/mysql/3306/mysql.sock -P3306
mysql> create user pcms@'%' identified by 'pcms@123';
mysql> grant all privileges on *.* to pcms@'%';
mysql> flush privileges;

创建库并使用sysbench造数据:

mysql> create database pcms;
//使用sysbench造数
Shell> sysbench /usr/share/sysbench/oltp_read_write.lua --mysql-host=172.16.130.180 --mysql-port=3306 --mysql-user='root' --mysql-password='abc123' --mysql-db='sbtest' --tables=10 --table-size=5000 --threads=200 prepar
//检查
MySQL [sbtest]> select count(*) from sbtest1;

七、备份与恢复测试

全量备份测试:

    Shell> /usr/local/xtrabackup/bin/xtrabackup --defaults-file=/data/mysql/3306/conf/my.cnf --host=127.0.0.1 --user=root --password=abc123 --port=3306 --backup --target-dir=/root/backup/

输出信息:

Using server version 8.0.25
210624 22:08:39 Executing LOCK INSTANCE FOR BACKUP...
xtrabackup: uses posix_fadvise().
xtrabackup: cd to /data/mysql/3306/data
xtrabackup: open files limit requested 80000, set to 1024000
xtrabackup: using the following InnoDB configuration:
xtrabackup: innodb_data_home_dir = .
xtrabackup: innodb_data_file_path = ibdata1:12M:autoextend
xtrabackup: innodb_log_group_home_dir = ./
xtrabackup: innodb_log_files_in_group = 4
xtrabackup: innodb_log_file_size = 104857600
xtrabackup: using O_DIRECT
Number of pools: 1
xtrabackup: inititialize_service_handles suceeded
210624 22:08:39 Connecting to MySQL server host: 127.0.0.1, user: root, password: set, port: 3306, socket: /data/mysql/3306/mysql.sock
xtrabackup: Redo Log Archiving is not set up.
210624 22:08:39 >> log scanned up to (31673954)
xtrabackup: Generating a list of tablespaces
xtrabackup: Generating a list of tablespaces
Scanning './'
Completed space ID check of 2 files.
Allocated tablespace ID 2 for sbtest/sbtest8, old maximum was 0
210624 22:08:42 Backup created in directory '/root/backup/'
MySQL binlog position: filename 'mysql-bin.000005', position '196', GTID of the last change '4c2b3352-d4f3-11eb-8b55-52540061b4c4:1-47'
210624 22:08:42 [00] Writing /root/backup/backup-my.cnf
210624 22:08:42 [00]...done
210624 22:08:42 [00] Writing /root/backup/xtrabackup_info
210624 22:08:42 [00]...done
xtrabackup: Transaction log of lsn (31673954) to (31679741) was copied.
210624 22:08:43 completed OK!

全量恢复测试:

 // 删掉库并将数据库关闭
Shell> mysql -uroot -p'abc123' -h'127.0.0.1'
MySQL [(none)]> drop database sbtest;
MySQL [(none)]> shutdown;
// 准备工作
Shell> /usr/local/xtrabackup/bin/xtrabackup --host=127.0.0.1 --user=root --password=abc123 --port=3306 --prepare --target-dir=/root/backup/
Shell> mv /data/mysql/3306/data/ /data/mysql/3306/data1
Shell> mkdir /data/mysql/3306/data
// 拷贝数据
Shell> /usr/local/xtrabackup/bin/xtrabackup --host=127.0.0.1 --user=root --password=abc123 --port=3306 --datadir=/data/mysql/3306/data --copy-back --target-dir=/root/backup/

输出信息:

210625 02:34:36 [01] Copying ./performance_schema/keyring_componen_191.sdi to /data/mysql/3306/data/performance_schema/keyring_componen_191.sdi
210625 02:34:36 [01]...done
210625 02:34:36 [01] Copying ./ib_buffer_pool to /data/mysql/3306/data/ib_buffer_pool
210625 02:34:36 [01]...done
210625 02:34:36 [01] Copying ./xtrabackup_info to /data/mysql/3306/data/xtrabackup_info
210625 02:34:36 [01]...done
210625 02:34:36 [01] Copying ./xtrabackup_master_key_id to /data/mysql/3306/data/xtrabackup_master_key_id
210625 02:34:36 [01]...done
210625 02:34:36 [01] Copying ./ibtmp1 to /data/mysql/3306/data/ibtmp1
210625 02:34:36 [01]...done
210625 02:34:37 [01] Creating directory ./#innodb_temp
210625 02:34:37 [01] ...done.
210625 02:34:37 completed OK!
// 修改目录属性启动数据库 Shell> chown -R mysql:mysql /data/mysql/3306/data
Shell> chmod -R 755 /data/mysql/3306/data
// 启动数据库 Shell> /usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/3306/conf/my.cnf &
// 检测

全量恢复完成:

    MySQL> select count(*) from sbtest.sbtest1;

八、增量备份及恢复

如法炮制,略......

Enjoy GreatSQL

本文由博客一文多发平台 OpenWrite 发布!

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