pg_probackup
[1] https://postgrespro.com/docs/enterprise/13/app-pgprobackup
- PITR依赖continuous WAL archiving:
Making backups in PAGE backup mode, performing PITR and making backups with ARCHIVE WAL delivery mode require continuous WAL archiving to be enabled.
You can use both STREAM and ARCHIVE backups for point in time recovery as long as the WAL archive is available at least starting from the time the backup was taken.
- PTRACK增量备份模式，及incremental restore，要求initdb时
--data-checksums. - todo stream,archive有什么区别
初始化
pg_probackup init -B $HOME/probackup
pg_probackup add-instance -B $HOME/probackup -D $HOME/pgdata2 --instance pg5433
archive_mode = on
archive_command = '"$HOME/.local/pgsql/bin/pg_probackup" archive-push -B "$HOME/probackup" --instance pg5433 --wal-file-name=%f'
# pg_ctl start
全量，及PAGE增量备份
pg_probackup backup -B $HOME/probackup --instance pg5433 -b FULL -p 5433 -d postgres
pg_probackup backup -B $HOME/probackup --instance pg5433 -b PAGE -p 5433 -d postgres
pg_probackup backup -B $HOME/probackup --instance pg5433 -b PAGE -p 5433 -d postgres --log-level-file=info
# --log-level-file默认off，打开后默认记录在-B/log
pg_probackup show -B $HOME/probackup
BACKUP INSTANCE 'pg5433'
=================================================================================================================================
Instance Version ID Recovery Time Mode WAL Mode TLI Time Data WAL Zratio Start LSN Stop LSN Status
=================================================================================================================================
pg5433 13 R2RP9H 2021-11-18 20:27:17+08 PAGE ARCHIVE 1/1 1s 106kB 16MB 1.00 0/8000028 0/90000B8 OK
pg5433 13 R2RP38 2021-11-18 20:23:32+08 PAGE ARCHIVE 1/1 1s 106kB 16MB 1.00 0/5000028 0/60000F0 OK
pg5433 13 R2RP1U 2021-11-18 20:22:44+08 FULL ARCHIVE 1/0 6s 23MB 16MB 1.00 0/2000028 0/30000F0 OK
pg_probackup show -B $HOME/probackup --instance pg5433
pg_probackup show -B $HOME/probackup --archive
删除不需要的备份数据
pg_probackup delete -B $HOME/probackup --instance pg5433 --delete-expired
pg_probackup delete -B $HOME/probackup --instance pg5433 --delete-wal
pg_probackup delete -B $HOME/probackup --instance pg5433 --status=ERROR
恢复
pg_probackup validate -B $HOME/probackup --instance pg5433
pg_probackup restore -B $HOME/probackup --instance pg5433 -D $HOME/pgdata2-restored
pg_probackup validate -B $HOME/probackup --instance pg5433 --recovery-target-time="2021-11-18 20:15:32+08"
# => ERROR: Backup satisfying target options is not found.
pg_probackup validate -B $HOME/probackup --instance pg5433 --recovery-target-time="2021-11-18 20:23:32+08"
pg_probackup validate -B $HOME/probackup --instance pg5433 --recovery-target-time="2021-11-18 20:25:32+08"
# => INFO: Backup validation completed successfully on time 2021-11-18 20:23:32+08, xid 485 and LSN 0/60000F0
pg_probackup validate -B $HOME/probackup --instance pg5433 --recovery-target-time="2021-11-18 20:35:32+08"
# => WARNING: Thread [1]: Could not read WAL record at 0/A000000
# ERROR: Thread [1]: WAL segment "/home/fang/probackup/wal/pg5433/00000001000000000000000A" is absent
# WARNING: Recovery can be done up to time 2021-11-18 20:27:17+08, xid 485 and LSN 0/90000B8
# ERROR: Not enough WAL records to time 2021-11-18 20:35:32+08
pg_probackup restore -B $HOME/probackup --instance pg5433 -D $HOME/pgdata2-restored2 --recovery-target-time="2021-11-18 20:23:32+08"
DELTA增量备份
pg_probackup backup -B $HOME/probackup --instance pg5433 -b DELTA -p 5433 -d postgres --log-level-file=info
PTRACK增量备份，要求--data-checksums
pg_probackup backup -B $HOME/probackup --instance pg5433 -b PTRACK -p 5433 -d postgres --log-level-file=info
# WARNING: This PostgreSQL instance was initialized without data block checksums. pg_probackup have no way to detect data block corruption without them. Reinitialize PGDATA with option '--data-checksums'.
# WARNING: Current PostgreSQL role is superuser. It is not recommended to run pg_probackup under superuser.
# ERROR: This PostgreSQL instance does not support ptrack
# WARNING: Backup R2TMDU is running, setting its status to ERROR
pg_probackup show -B $HOME/probackup
BACKUP INSTANCE 'pg5433'
=====================================================================================================================================
Instance Version ID Recovery Time Mode WAL Mode TLI Time Data WAL Zratio Start LSN Stop LSN Status
=====================================================================================================================================
pg5433 13 R2TMDU ---- PTRACK ARCHIVE 0/0 0 0 0 1.00 0/0 0/0 ERROR
pg5433 13 R2TMDK 2021-11-19 21:20:08+08 DELTA ARCHIVE 1/1 1s 106kB 16MB 1.00 0/11000028 0/120000B8 OK
pg5433 13 R2SQBU 2021-11-19 09:47:54+08 PAGE ARCHIVE 1/1 1s 106kB 16MB 1.00 0/E000028 0/F0000B8 OK
pg5433 13 R2SQAS 2021-11-19 09:47:16+08 PAGE ARCHIVE 1/1 1s 106kB 16MB 1.00 0/B000028 0/C0000B8 OK
pg5433 13 R2RP9H 2021-11-18 20:27:17+08 PAGE ARCHIVE 1/1 1s 106kB 16MB 1.00 0/8000028 0/90000B8 OK
pg5433 13 R2RP38 2021-11-18 20:23:32+08 PAGE ARCHIVE 1/1 1s 106kB 16MB 1.00 0/5000028 0/60000F0 OK
pg5433 13 R2RP1U 2021-11-18 20:22:44+08 FULL ARCHIVE 1/0 6s 23MB 16MB 1.00 0/2000028 0/30000F0 OK
在有交易时增量备份
pgbench -i -s 10 postgres
pgbench -c 2 -T 100 -R 100 postgres
pg_probackup backup -B $HOME/probackup --instance pg5433 -b PAGE -p 5433 -d postgres --log-level-file=info
pg_probackup backup -B $HOME/probackup --instance pg5433 -b DELTA -p 5433 -d postgres --log-level-file=info
pg_probackup show -B $HOME/probackup
BACKUP INSTANCE 'pg5433'
====================================================================================================================================
Instance Version ID Recovery Time Mode WAL Mode TLI Time Data WAL Zratio Start LSN Stop LSN Status
====================================================================================================================================
pg5433 13 R2TMOZ 2021-11-19 21:26:59+08 DELTA ARCHIVE 1/1 1s 106kB 16MB 1.00 0/29000028 0/2A0000B8 OK
pg5433 13 R2TMOI 2021-11-19 21:26:42+08 PAGE ARCHIVE 1/1 1s 106kB 16MB 1.00 0/27000028 0/280000B8 OK
pg5433 13 R2TMO9 2021-11-19 21:26:34+08 DELTA ARCHIVE 1/1 2s 106kB 16MB 1.00 0/24000028 0/250000B8 OK
pg5433 13 R2TMO0 2021-11-19 21:26:24+08 PAGE ARCHIVE 1/1 1s 106kB 16MB 1.00 0/22000028 0/230000B8 OK
pg5433 13 R2TMNR 2021-11-19 21:26:16+08 DELTA ARCHIVE 1/1 2s 106kB 16MB 1.00 0/1F000028 0/200000B8 OK
pg5433 13 R2TMNH 2021-11-19 21:26:05+08 PAGE ARCHIVE 1/1 1s 106kB 16MB 1.00 0/1D000028 0/1E0000B8 OK
pg5433 13 R2TMNA 2021-11-19 21:25:58+08 DELTA ARCHIVE 1/1 1s 106kB 16MB 1.00 0/1B000028 0/1C0000F0 OK
pg5433 13 R2TMN1 2021-11-19 21:25:50+08 PAGE ARCHIVE 1/1 2s 106kB 16MB 1.00 0/19000028 0/1A0000B8 OK
pg5433 13 R2TMMR 2021-11-19 21:25:39+08 DELTA ARCHIVE 1/1 1s 106kB 16MB 1.00 0/17000028 0/180000B8 OK
pg5433 13 R2TMM7 2021-11-19 21:25:20+08 PAGE ARCHIVE 1/1 2s 106kB 16MB 1.00 0/14000028 0/150000B8 OK
pg5433 13 R2TMDK 2021-11-19 21:20:08+08 DELTA ARCHIVE 1/1 1s 106kB 16MB 1.00 0/11000028 0/120000B8 OK
pg5433 13 R2SQBU 2021-11-19 09:47:54+08 PAGE ARCHIVE 1/1 1s 106kB 16MB 1.00 0/E000028 0/F0000B8 OK
pg5433 13 R2SQAS 2021-11-19 09:47:16+08 PAGE ARCHIVE 1/1 1s 106kB 16MB 1.00 0/B000028 0/C0000B8 OK
pg5433 13 R2RP9H 2021-11-18 20:27:17+08 PAGE ARCHIVE 1/1 1s 106kB 16MB 1.00 0/8000028 0/90000B8 OK
pg5433 13 R2RP38 2021-11-18 20:23:32+08 PAGE ARCHIVE 1/1 1s 106kB 16MB 1.00 0/5000028 0/60000F0 OK
pg5433 13 R2RP1U 2021-11-18 20:22:44+08 FULL ARCHIVE 1/0 6s 23MB 16MB 1.00 0/2000028 0/30000F0 OK
pg_probackup validate -B $HOME/probackup --instance pg5433 --recovery-target-time="2021-11-19 21:26:32+08"
pg_probackup validate -B $HOME/probackup --instance pg5433 --recovery-target-time="2021-11-19 21:26:52+08"
增量恢复，两种模式（checksum,lsn）都需要--data-checksums
pg_probackup restore -B $HOME/probackup --instance pg5433 -D $HOME/pgdata2 -I lsn
pg_probackup restore -B $HOME/probackup --instance pg5433 -D $HOME/pgdata2 -I lsn
# INFO: Running incremental restore into nonempty directory: "/home/fang/pgdata2"
# WARNING: Postmaster with pid 1405 is running in destination directory "/home/fang/pgdata2"
# INFO: Trying to read pg_control file in destination directory
# ERROR: Incremental restore is not allowed
pg_ctl -D ~/pgdata2 -l ~/repos/postgres/logfile2 stop
# waiting for server to shut down.... done
# server stopped
pg_probackup restore -B $HOME/probackup --instance pg5433 -D $HOME/pgdata2 -I lsn
# INFO: Running incremental restore into nonempty directory: "/home/fang/pgdata2"
# INFO: Trying to read pg_control file in destination directory
# ERROR: Incremental restore in 'lsn' mode require data_checksums to be enabled in destination data directory
pg_probackup的更多相关文章
随机推荐
- HTML[2种特殊选择器]_伪类选择器&属性选择器
本文介绍两种特殊的选择器 1.伪类选择器 2.属性选择器 1.伪类选择器 ...: nth-of -type (x) x为同类型兄弟元素中的排名 例如: <body> <ul> ...
- 华为Awareness kit，您旅途路上的超智能管家
前言 前段时间看了一部纪录片<中国游客在巴黎>,讲述了外国人眼中"中国式旅游":热衷景点打卡,沉迷拍照留念,无暇仔细欣赏:留足时间,买买买,不能枉此行.网友总结中国式旅 ...
- Python简单爬取图书信息及入库
课堂上老师布置了一个作业,如下图所示: 就是简单写一个借书系统. 大概想了一下流程,登录-->验证登录信息-->登录成功跳转借书界面-->可查看自己的借阅书籍以及数量... 登录可以 ...
- storm卡顿修改
最近的webstorm越来越卡了,有时候甚至会弹出 Out of memory的窗口,提示要设置 xmx的值, 8G内存跑你这小软件还会不够用???要内存?给你,看你还会不会卡成翔! 于是果断给x ...
- Java基础之（三）：IDEA的安装及破解
IDEA的安装 IDEA官网:IDEA 点击IJ 找好操作系统,点击下载 双击打开,自己找个安装路径 勾选这两个即可 旗舰版破解及汉化 上面是个人社区版,是免费的,但是如果想要使用汉化版的,需要寻找插 ...
- 【学习转载】MyBatis源码解析——日志记录
声明:转载自前辈:开心的鱼a1 一 .概述 MyBatis没有提供日志的实现类,需要接入第三方的日志组件,但第三方日志组件都有各自的Log级别,且各不相同,但MyBatis统一提供了trace.deb ...
- JVM详解（五）——运行时数据区-方法区
一.概述 1.介绍 <Java虚拟机规范>中明确说明:尽管所有的方法区在逻辑上属于堆的一部分,但一些简单的实现可能不会选择去进行垃圾收集或者进行压缩.但对于HotSpot JVM而言,方法 ...
- javascript-jquery对象的事件处理
一.页面加载 1.页面加载顺序:先加载<head></head>之间的内容,然后加载<body></body>之间的内容 直接在head之间书写jque ...
- 23.合并k个有序链表
合并 k 个排序链表,返回合并后的排序链表.请分析和描述算法的复杂度. 示例: 输入: [ 1->4->5, 1->3->4, 2->6 ] 输出: 1-&g ...
- 实用小技巧：Notepad++直接连接Linux
实用小技巧:Notepad++直接连接Linux 前言 号称编辑器之神的Vim对于只会用几个基础操作的本人而言,在编辑一些大型文本有那么些力不从心: 平时都是通过Xftp拖到本地,修改完后再覆盖回去: ...