PostgreSQL物理备份恢复之 pg_rman的用法说明

原作者: [db:作者] 来自: [db:来源] 收藏邀请

简介

类似oracle 的 rman, 用于 postgres的备份与恢复

下载

https://github.com/ossc-db/pg_rman/tree/V1.3.9

安装

tar zxvf pg_rman*.tar.gz
chown postgres.postgres -R pg_rman*
su - postgres
cd xxx/pg_rman*
make && make install

使用

开启归档

[postgres@node_206 /postgresql/pgsql/archive_log]$tail -3 /postgresql/pgsql/data/postgresql.conf 
#for pg_Rman
archive_mode = on # enables archiving; off, on, or always
archive_command = 'test ! -f /postgresql/pgsql/archive_log/%f && cp %p /postgresql/pgsql/archive_log/%f'

重启 PG

pg_ctl restart -m fast

初始化

pg_rman init -B /postgresql/pgsql/pg_rman_backups

全量备份

pg_rman backup --backup-mode=full -B /postgresql/pgsql/pg_rman_backups

实例

[postgres@node_206 /postgresql/pgsql]$pg_rman init -B /postgresql/pgsql/pg_rman_backups/
INFO: ARCLOG_PATH is set to '/postgresql/pgsql/archive_log'
INFO: SRVLOG_PATH is set to '/postgresql/pgsql/pg_log'
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$vim ~/.bash_profile 
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$source !$
source ~/.bash_profile
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql
psql (12.3)
Type "help" for help.
postgres=# \l
                 List of databases
  Name  | Owner  | Encoding |  Collate  |  Ctype  |  Access privileges  
-----------+----------+----------+-------------+-------------+-----------------------
 postgres | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 repmgr  | repmgr  | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 template0 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 template1 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 test   | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
(5 rows)
postgres=# \c test
You are now connected to database "test" as user "postgres".
test=# select * from test;
 id |     crt_time     
----+----------------------------
 1 | 2020-11-17 23:23:31.407616
 2 | 2020-11-17 23:23:31.407728
 3 | 2020-11-17 23:23:31.407731
 4 | 2020-11-17 23:23:31.407732
 5 | 2020-11-17 23:23:31.407732
 6 | 2020-11-17 23:23:31.407733
 7 | 2020-11-17 23:23:31.407733
 8 | 2020-11-17 23:23:31.407734
 9 | 2020-11-17 23:23:31.407734
 10 | 2020-11-17 23:23:31.407735
(10 rows)
test=# insert into test (id) select n from generate_series(11,20) n;
INSERT 0 10
test=# \q
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=full -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
INFO: copying archived WAL files
INFO: backup complete
INFO: Please execute 'pg_rman validate' to verify the files are correctly copied.
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
INFO: validate: "2020-11-17 23:30:25" backup and archive log files by CRC
INFO: backup "2020-11-17 23:30:25" is valid
[postgres@node_206 /postgresql/pgsql]$pg_rman show 
ERROR: required parameter not specified: BACKUP_PATH (-B, --backup-path)
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-17 23:30:25 2020-11-17 23:30:27 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql
psql (12.3)
Type "help" for help.
postgres=# \c test
You are now connected to database "test" as user "postgres".
test=# insert into test (id) select n from generate_series(21,30) n;
INSERT 0 10
test=# \q
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=incremental -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
INFO: copying archived WAL files
INFO: backup complete
INFO: Please execute 'pg_rman validate' to verify the files are correctly copied.
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
INFO: validate: "2020-11-17 23:31:08" backup and archive log files by CRC
INFO: backup "2020-11-17 23:31:08" is valid
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-17 23:31:08 2020-11-17 23:31:10 INCR  33MB   6 OK
2020-11-17 23:30:25 2020-11-17 23:30:27 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql
psql (12.3)
Type "help" for help.
postgres=# \c test
You are now connected to database "test" as user "postgres".
test=# drop table test;
DROP TABLE
test=# \q
[postgres@node_206 /postgresql/pgsql]$pg_ctl stop -m fast
waiting for server to shut down.... done
server stopped
[postgres@node_206 /postgresql/pgsql]$pg_ctl start
waiting for server to start....2020-11-17 10:32:09.637 EST [58824] LOG: 00000: starting PostgreSQL 12.3 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44), 64-bit
2020-11-17 10:32:09.637 EST [58824] LOCATION: PostmasterMain, postmaster.c:998
2020-11-17 10:32:09.637 EST [58824] LOG: 00000: listening on IPv4 address "0.0.0.0", port 5432
2020-11-17 10:32:09.637 EST [58824] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 10:32:09.637 EST [58824] LOG: 00000: listening on IPv6 address "::", port 5432
2020-11-17 10:32:09.637 EST [58824] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 10:32:09.643 EST [58824] LOG: 00000: listening on Unix socket "/tmp/.s.PGSQL.5432"
2020-11-17 10:32:09.643 EST [58824] LOCATION: StreamServerPort, pqcomm.c:587
2020-11-17 10:32:09.688 EST [58824] LOG: 00000: redirecting log output to logging collector process
2020-11-17 10:32:09.688 EST [58824] HINT: Future log output will appear in directory "/postgresql/pgsql/pg_log".
2020-11-17 10:32:09.688 EST [58824] LOCATION: SysLogger_Start, syslogger.c:675
 done
server started
[postgres@node_206 /postgresql/pgsql]$psql -d test
psql (12.3)
Type "help" for help.
test=# insert into test (id ) select n from generate_series(21,30) n;
ERROR: relation "test" does not exist
LINE 1: insert into test (id ) select n from generate_series(21,30) ...
          ^
test=# insert into test (id ) select n from generate_series(21,30) n;
ERROR: relation "test" does not exist
LINE 1: insert into test (id ) select n from generate_series(21,30) ...
          ^
test=# \d test
Did not find any relation named "test".
test=# \q
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$repmgr cluster show
 ID | Name   | Role  | Status    | Upstream  | Location | Priority | Timeline | Connection string                     
----+----------+---------+---------------+------------+----------+----------+----------+-------------------------------------------------------------
 1 | node_206 | primary | * running   |      | default | 100   | 6    | host=node_206 user=repmgr dbname=repmgr connect_timeout=2
 2 | node_205 | standby | ? unreachable | ? node_206 | default | 100   |     | host=node_205 user=repmgr dbname=repmgr connect_timeout=2 
WARNING: following issues were detected
 - unable to connect to node "node_205" (ID: 2)
 - node "node_205" (ID: 2) is registered as an active standby but is unreachable
HINT: execute with --verbose option to see connection error messages
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-17 23:31:08 2020-11-17 23:31:10 INCR  33MB   6 OK
2020-11-17 23:30:25 2020-11-17 23:30:27 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$pg_rman restore -B /postgresql/pgsql/pg_rman_backups/ --restore-target-time='2020-11-17 23:30:25'
pg_rman: unrecognized option '--restore-target-time=2020-11-17 23:30:25'
ERROR: option is not specified
HINT: Try "pg_rman --help" for more information.
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman restore -B /postgresql/pgsql/pg_rman_backups/ --recovery-target-time='2020-11-17 23:30:25'
ERROR: PostgreSQL server is running
HINT: Please stop PostgreSQL server before executing restore.
[postgres@node_206 /postgresql/pgsql]$pg_ctl stop -m fast
waiting for server to shut down.... done
server stopped
[postgres@node_206 /postgresql/pgsql]$pg_rman restore -B /postgresql/pgsql/pg_rman_backups/ --recovery-target-time='2020-11-17 23:30:25'
ERROR: cannot do restore
DETAIL: There is no valid full backup which can be used for given recovery condition.
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
[postgres@node_206 /postgresql/pgsql]$pg_rman restore -B /postgresql/pgsql/pg_rman_backups/ --recovery-target-time='2020-11-17 23:30:25'
ERROR: cannot do restore
DETAIL: There is no valid full backup which can be used for given recovery condition.
[postgres@node_206 /postgresql/pgsql]$pg_ctl start
waiting for server to start....2020-11-17 10:34:02.558 EST [58862] LOG: 00000: starting PostgreSQL 12.3 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44), 64-bit
2020-11-17 10:34:02.558 EST [58862] LOCATION: PostmasterMain, postmaster.c:998
2020-11-17 10:34:02.559 EST [58862] LOG: 00000: listening on IPv4 address "0.0.0.0", port 5432
2020-11-17 10:34:02.559 EST [58862] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 10:34:02.559 EST [58862] LOG: 00000: listening on IPv6 address "::", port 5432
2020-11-17 10:34:02.559 EST [58862] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 10:34:02.565 EST [58862] LOG: 00000: listening on Unix socket "/tmp/.s.PGSQL.5432"
2020-11-17 10:34:02.565 EST [58862] LOCATION: StreamServerPort, pqcomm.c:587
2020-11-17 10:34:02.608 EST [58862] LOG: 00000: redirecting log output to logging collector process
2020-11-17 10:34:02.608 EST [58862] HINT: Future log output will appear in directory "/postgresql/pgsql/pg_log".
2020-11-17 10:34:02.608 EST [58862] LOCATION: SysLogger_Start, syslogger.c:675
 done
server started
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-17 23:31:08 2020-11-17 23:31:10 INCR  33MB   6 OK
2020-11-17 23:30:25 2020-11-17 23:30:27 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
[postgres@node_206 /postgresql/pgsql]$pg_ctl stop
waiting for server to shut down.... done
server stopped
[postgres@node_206 /postgresql/pgsql]$pg_rman restore -B /postgresql/pgsql/pg_rman_backups/ --recovery-target-time='2020-11-17 23:30:25'
ERROR: cannot do restore
DETAIL: There is no valid full backup which can be used for given recovery condition.
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_ctl start
waiting for server to start....2020-11-17 10:34:22.842 EST [58881] LOG: 00000: starting PostgreSQL 12.3 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44), 64-bit
2020-11-17 10:34:22.842 EST [58881] LOCATION: PostmasterMain, postmaster.c:998
2020-11-17 10:34:22.842 EST [58881] LOG: 00000: listening on IPv4 address "0.0.0.0", port 5432
2020-11-17 10:34:22.842 EST [58881] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 10:34:22.842 EST [58881] LOG: 00000: listening on IPv6 address "::", port 5432
2020-11-17 10:34:22.842 EST [58881] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 10:34:22.846 EST [58881] LOG: 00000: listening on Unix socket "/tmp/.s.PGSQL.5432"
2020-11-17 10:34:22.846 EST [58881] LOCATION: StreamServerPort, pqcomm.c:587
2020-11-17 10:34:22.888 EST [58881] LOG: 00000: redirecting log output to logging collector process
2020-11-17 10:34:22.888 EST [58881] HINT: Future log output will appear in directory "/postgresql/pgsql/pg_log".
2020-11-17 10:34:22.888 EST [58881] LOCATION: SysLogger_Start, syslogger.c:675
 done
server started
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=full -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
INFO: copying archived WAL files
INFO: backup complete
INFO: Please execute 'pg_rman validate' to verify the files are correctly copied.
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
INFO: validate: "2020-11-17 23:34:26" backup and archive log files by CRC
INFO: backup "2020-11-17 23:34:26" is valid
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-17 23:34:26 2020-11-17 23:34:28 FULL  114MB   6 OK
2020-11-17 23:31:08 2020-11-17 23:31:10 INCR  33MB   6 OK
2020-11-17 23:30:25 2020-11-17 23:30:27 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql 
psql (12.3)
Type "help" for help.
postgres=# \l
                 List of databases
  Name  | Owner  | Encoding |  Collate  |  Ctype  |  Access privileges  
-----------+----------+----------+-------------+-------------+-----------------------
 postgres | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 repmgr  | repmgr  | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 template0 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 template1 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 test   | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
(5 rows)
postgres=# \c test
You are now connected to database "test" as user "postgres".
test=# \dt
Did not find any relations.
test=# create table test(id int); 
CREATE TABLE
test=# drop table test(id int);
ERROR: syntax error at or near "("
LINE 1: drop table test(id int);
            ^
test=# 
test=# \q
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$vim $PGDATA/postgresql.conf
postgres=# \l
                 List of databases
  Name  | Owner  | Encoding |  Collate  |  Ctype  |  Access privileges  
-----------+----------+----------+-------------+-------------+-----------------------
 postgres | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 repmgr  | repmgr  | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 template0 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 template1 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 test   | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
(5 rows)
postgres=# \c test
You are now connected to database "test" as user "postgres".
test=# \dt
Did not find any relations.
test=# create table test(id int); 
CREATE TABLE
test=# drop table test(id int);
ERROR: syntax error at or near "("
LINE 1: drop table test(id int);
            ^
test=# 
test=# \q
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$vim $PGDATA/postgresql.conf
[postgres@node_206 /postgresql/pgsql]$vim $PGDATA/postgresql.conf
                 List of databases
  Name  | Owner  | Encoding |  Collate  |  Ctype  |  Access privileges  
-----------+----------+----------+-------------+-------------+-----------------------
 postgres | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 repmgr  | repmgr  | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 template0 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 template1 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 test   | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
(5 rows)
postgres=# \c test
You are now connected to database "test" as user "postgres".
test=# \dt
Did not find any relations.
test=# create table test(id int); 
CREATE TABLE
test=# drop table test(id int);
ERROR: syntax error at or near "("
LINE 1: drop table test(id int);
            ^
test=# 
test=# \q
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$vim $PGDATA/postgresql.conf
[postgres@node_206 /postgresql/pgsql]$vim $PGDATA/postgresql.conf
[postgres@node_206 /postgresql/pgsql]$pg_ctl restart -m fast
waiting for server to shut down.... done
server stopped
waiting for server to start....2020-11-17 10:36:41.191 EST [58933] LOG: 00000: starting PostgreSQL 12.3 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44), 64-bit
2020-11-17 10:36:41.191 EST [58933] LOCATION: PostmasterMain, postmaster.c:998
2020-11-17 10:36:41.192 EST [58933] LOG: 00000: listening on IPv4 address "0.0.0.0", port 5432
2020-11-17 10:36:41.192 EST [58933] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 10:36:41.192 EST [58933] LOG: 00000: listening on IPv6 address "::", port 5432
2020-11-17 10:36:41.192 EST [58933] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 10:36:41.197 EST [58933] LOG: 00000: listening on Unix socket "/tmp/.s.PGSQL.5432"
2020-11-17 10:36:41.197 EST [58933] LOCATION: StreamServerPort, pqcomm.c:587
2020-11-17 10:36:41.229 EST [58933] LOG: 00000: redirecting log output to logging collector process
2020-11-17 10:36:41.229 EST [58933] HINT: Future log output will appear in directory "/postgresql/pgsql/pg_log".
2020-11-17 10:36:41.229 EST [58933] LOCATION: SysLogger_Start, syslogger.c:675
 done
server started
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$ll
total 28
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 23:36 archive_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 15:51 backups
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 16:43 bin
drwx------. 19 postgres postgres 4096 Nov 17 23:36 data
drwxr-xr-x. 6 postgres postgres 4096 Nov 15 16:14 include
drwxr-xr-x. 4 postgres postgres 4096 Nov 17 06:37 lib
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 23:36 pg_log
drwxrwxr-x. 5 postgres postgres 104 Nov 17 23:30 pg_rman_backups
drwxr-xr-x. 8 postgres postgres 4096 Nov 15 16:14 share
[postgres@node_206 /postgresql/pgsql]$rm -rf archive_log/*
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$rm -rf pg_rman_backups/*
[postgres@node_206 /postgresql/pgsql]$ll
total 24
drwxr-xr-x. 2 postgres postgres  6 Nov 17 23:36 archive_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 15:51 backups
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 16:43 bin
drwx------. 19 postgres postgres 4096 Nov 17 23:36 data
drwxr-xr-x. 6 postgres postgres 4096 Nov 15 16:14 include
drwxr-xr-x. 4 postgres postgres 4096 Nov 17 06:37 lib
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 23:36 pg_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 23:36 pg_rman_backups
drwxr-xr-x. 8 postgres postgres 4096 Nov 15 16:14 share
[postgres@node_206 /postgresql/pgsql]$pwd
/postgresql/pgsql
[postgres@node_206 /postgresql/pgsql]$ls
archive_log backups bin data include lib pg_log pg_rman_backups share
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$ll
total 24
drwxr-xr-x. 2 postgres postgres  6 Nov 17 23:36 archive_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 15:51 backups
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 16:43 bin
drwx------. 19 postgres postgres 4096 Nov 17 23:36 data
drwxr-xr-x. 6 postgres postgres 4096 Nov 15 16:14 include
drwxr-xr-x. 4 postgres postgres 4096 Nov 17 06:37 lib
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 23:36 pg_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 23:36 pg_rman_backups
drwxr-xr-x. 8 postgres postgres 4096 Nov 15 16:14 share
[postgres@node_206 /postgresql/pgsql]$pwd
/postgresql/pgsql
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$vim $PGDATA/postgresql.conf
total 24
drwxr-xr-x. 2 postgres postgres  6 Nov 17 23:36 archive_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 15:51 backups
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 16:43 bin
drwx------. 19 postgres postgres 4096 Nov 17 23:36 data
drwxr-xr-x. 6 postgres postgres 4096 Nov 15 16:14 include
drwxr-xr-x. 4 postgres postgres 4096 Nov 17 06:37 lib
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 23:36 pg_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 23:36 pg_rman_backups
drwxr-xr-x. 8 postgres postgres 4096 Nov 15 16:14 share
[postgres@node_206 /postgresql/pgsql]$pwd
/postgresql/pgsql
[postgres@node_206 /postgresql/pgsql]$ls
archive_log backups bin data include lib pg_log pg_rman_backups share
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$ll
total 24
drwxr-xr-x. 2 postgres postgres  6 Nov 17 23:36 archive_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 15:51 backups
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 16:43 bin
drwx------. 19 postgres postgres 4096 Nov 17 23:36 data
drwxr-xr-x. 6 postgres postgres 4096 Nov 15 16:14 include
drwxr-xr-x. 4 postgres postgres 4096 Nov 17 06:37 lib
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 23:36 pg_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 23:36 pg_rman_backups
drwxr-xr-x. 8 postgres postgres 4096 Nov 15 16:14 share
[postgres@node_206 /postgresql/pgsql]$pwd
/postgresql/pgsql
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$vim $PGDATA/postgresql.conf
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$tail -3  $PGDATA/postgresql.conf
#for pg_Rman
archive_mode = on # enables archiving; off, on, or always
archive_command = 'test ! -f /postgresql/pgsql/archive_log/%f && cp %p /postgresql/pgsql/archive_log/%f'
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_ctl restart -m fast
waiting for server to shut down.... done
server stopped
waiting for server to start....2020-11-17 10:45:13.636 EST [59035] LOG: 00000: starting PostgreSQL 12.3 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44), 64-bit
2020-11-17 10:45:13.636 EST [59035] LOCATION: PostmasterMain, postmaster.c:998
2020-11-17 10:45:13.638 EST [59035] LOG: 00000: listening on IPv4 address "0.0.0.0", port 5432
2020-11-17 10:45:13.638 EST [59035] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 10:45:13.638 EST [59035] LOG: 00000: listening on IPv6 address "::", port 5432
2020-11-17 10:45:13.638 EST [59035] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 10:45:13.644 EST [59035] LOG: 00000: listening on Unix socket "/tmp/.s.PGSQL.5432"
2020-11-17 10:45:13.644 EST [59035] LOCATION: StreamServerPort, pqcomm.c:587
2020-11-17 10:45:13.696 EST [59035] LOG: 00000: redirecting log output to logging collector process
2020-11-17 10:45:13.696 EST [59035] HINT: Future log output will appear in directory "/postgresql/pgsql/pg_log".
2020-11-17 10:45:13.696 EST [59035] LOCATION: SysLogger_Start, syslogger.c:675
 done
server started
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$ll
total 24
drwxr-xr-x. 2 postgres postgres  6 Nov 17 23:36 archive_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 15:51 backups
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 16:43 bin
drwx------. 19 postgres postgres 4096 Nov 17 23:45 data
drwxr-xr-x. 6 postgres postgres 4096 Nov 15 16:14 include
drwxr-xr-x. 4 postgres postgres 4096 Nov 17 06:37 lib
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 23:45 pg_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 23:36 pg_rman_backups
drwxr-xr-x. 8 postgres postgres 4096 Nov 15 16:14 share
[postgres@node_206 /postgresql/pgsql]$pg_rman init -B /postgresql/pgsql/pg_rman_backups/
INFO: ARCLOG_PATH is set to '/postgresql/pgsql/archive_log'
INFO: SRVLOG_PATH is set to '/postgresql/pgsql/pg_log'
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql 
psql (12.3)
Type "help" for help.
postgres=# \l
                 List of databases
  Name  | Owner  | Encoding |  Collate  |  Ctype  |  Access privileges  
-----------+----------+----------+-------------+-------------+-----------------------
 postgres | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 repmgr  | repmgr  | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 template0 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 template1 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 test   | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
(5 rows)
postgres=# \c test
You are now connected to database "test" as user "postgres".
test=# \dt
    List of relations
 Schema | Name | Type | Owner  
--------+------+-------+----------
 public | test | table | postgres
(1 row)
test=# drop table test
test-# ;
DROP TABLE
test=# create table test(id int, crt_time timestamp);
CREATE TABLE
test=# insert into test(id) select n from generate_series(1,100) n;
INSERT 0 100
test=# \q
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=full -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
INFO: copying archived WAL files
INFO: backup complete
INFO: Please execute 'pg_rman validate' to verify the files are correctly copied.
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
INFO: validate: "2020-11-17 23:46:22" backup and archive log files by CRC
INFO: backup "2020-11-17 23:46:22" is valid
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql 
psql (12.3)
Type "help" for help.
postgres=# \c test
You are now connected to database "test" as user "postgres".
test=# select * from test;
 id | crt_time 
-----+----------
  1 | 
  2 | 
  3 | 
  4 | 
  5 | 
  6 | 
  7 | 
  8 | 
  9 | 
 10 | 
 11 | 
 12 | 
 13 | 
 14 | 
 15 | 
 16 | 
 17 | 
 18 | 
 19 | 
 20 | 
 21 | 
 22 | 
 23 | 
 24 | 
 25 | 
 26 | 
 27 | 
 28 | 
 29 | 
 30 | 
 31 | 
 32 | 
 33 | 
 34 | 
 35 | 
 36 | 
 37 | 
 38 | 
 39 | 
 40 | 
 41 | 
 42 | 
 43 | 
 44 | 
 45 | 
 46 | 
 47 | 
 48 | 
 49 | 
 50 | 
 51 | 
 52 | 
 53 | 
 54 | 
 55 | 
 56 | 
 57 | 
 58 | 
 59 | 
 60 | 
 61 | 
 62 | 
 63 | 
 64 | 
 65 | 
 66 | 
 67 | 
 68 | 
 69 | 
 70 | 
 71 | 
 72 | 
 73 | 
 74 | 
 75 | 
 76 | 
 77 | 
 78 | 
 79 | 
 80 | 
 81 | 
 82 | 
 83 | 
 84 | 
 85 | 
 86 | 
 87 | 
 88 | 
 89 | 
 90 | 
 91 | 
 92 | 
 93 | 
 94 | 
 95 | 
 96 | 
 97 | 
 98 | 
 99 | 
 100 | 
(100 rows)
test=# 
test=# 
test=# 
test=# 
test=# 
test=# 
test=# 
test=# 
test=# 
test=# insert into test (id) select n from generate_series(101,110) n;
INSERT 0 10
test=# \q
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=incremental -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
INFO: copying archived WAL files
INFO: backup complete
INFO: Please execute 'pg_rman validate' to verify the files are correctly copied.
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
INFO: validate: "2020-11-17 23:47:09" backup and archive log files by CRC
INFO: backup "2020-11-17 23:47:09" is valid
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-17 23:47:09 2020-11-17 23:47:12 INCR  33MB   6 OK
2020-11-17 23:46:22 2020-11-17 23:46:24 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql -d test
psql (12.3)
Type "help" for help.
test=# create table test2( like test );
CREATE TABLE
test=# insert into test2(id) select n from generate_serires(1,100) n;
ERROR: function generate_serires(integer, integer) does not exist
LINE 1: insert into test2(id) select n from generate_serires(1,100) ...
                      ^
HINT: No function matches the given name and argument types. You might need to add explicit type casts.
test=# 
test=# insert into test2(id) select n from generate_series(1,100) n;
INSERT 0 100
test=# \q
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=full -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
INFO: copying archived WAL files
INFO: backup complete
INFO: Please execute 'pg_rman validate' to verify the files are correctly copied.
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
INFO: validate: "2020-11-17 23:49:32" backup and archive log files by CRC
INFO: backup "2020-11-17 23:49:32" is valid
[postgres@node_206 /postgresql/pgsql]$psql -d test
psql (12.3)
Type "help" for help.
test=# insert into test(id) select n from generate_series(101,100) n;
INSERT 0 0
test=# \q
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=incremental -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
INFO: copying archived WAL files
INFO: backup complete
INFO: Please execute 'pg_rman validate' to verify the files are correctly copied.
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
INFO: validate: "2020-11-17 23:49:59" backup and archive log files by CRC
INFO: backup "2020-11-17 23:49:59" is valid
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-17 23:49:59 2020-11-17 23:50:01 INCR  33MB   6 OK
2020-11-17 23:49:32 2020-11-17 23:49:35 FULL  64MB   6 OK
2020-11-17 23:47:09 2020-11-17 23:47:12 INCR  33MB   6 OK
2020-11-17 23:46:22 2020-11-17 23:46:24 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman delete 2020-11-17 23:47:09 -B /postgresql/pgsql/pg_rman_backups/
WARNING: cannot delete backup with start time "2020-11-17 23:47:09"
DETAIL: This is the incremental backup necessary for successful recovery.
WARNING: cannot delete backup with start time "2020-11-17 23:46:22"
DETAIL: This is the latest full backup necessary for successful recovery.
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-17 23:49:59 2020-11-17 23:50:01 INCR  33MB   6 OK
2020-11-17 23:49:32 2020-11-17 23:49:35 FULL  64MB   6 OK
2020-11-17 23:47:09 2020-11-17 23:47:12 INCR  33MB   6 OK
2020-11-17 23:46:22 2020-11-17 23:46:24 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$pg_rman delete -f 2020-11-17 23:47:09 -B /postgresql/pgsql/pg_rman_backups/
WARNING: using force option will make some of the remaining backups unusable
DETAIL: Any remaining incremental backups that are older than the oldest available full backup cannot be restored.
INFO: delete the backup with start time: "2020-11-17 23:47:09"
INFO: delete the backup with start time: "2020-11-17 23:46:22"
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$ll pg_rman_backups/
total 8
drwx------. 6 postgres postgres 62 Nov 17 23:49 20201117
drwx------. 4 postgres postgres 34 Nov 17 23:45 backup
-rw-rw-r--. 1 postgres postgres 84 Nov 17 23:45 pg_rman.ini
-rw-rw-r--. 1 postgres postgres 40 Nov 17 23:45 system_identifier
drwx------. 2 postgres postgres 6 Nov 17 23:45 timeline_history
[postgres@node_206 /postgresql/pgsql]$ll pg_rman_backups/20201117/
total 0
drwx------. 2 postgres postgres 89 Nov 17 23:50 234622
drwx------. 2 postgres postgres 89 Nov 17 23:50 234709
drwx------. 5 postgres postgres 133 Nov 17 23:49 234932
drwx------. 5 postgres postgres 133 Nov 17 23:50 234959
[postgres@node_206 /postgresql/pgsql]$ll pg_rman_backups/20201117/234622/
total 112
-rw-rw-r--. 1 postgres postgres  433 Nov 17 23:50 backup.ini
-rw-rw-r--. 1 postgres postgres  226 Nov 17 23:46 file_arclog.txt
-rw-rw-r--. 1 postgres postgres 99521 Nov 17 23:46 file_database.txt
-rwx------. 1 postgres postgres  764 Nov 17 23:46 mkdirs.sh
[postgres@node_206 /postgresql/pgsql]$ll pg_rman_backups/20201117/2347
ls: cannot access pg_rman_backups/20201117/2347: No such file or directory
[postgres@node_206 /postgresql/pgsql]$ll pg_rman_backups/20201117/234709/
total 124
-rw-rw-r--. 1 postgres postgres  438 Nov 17 23:50 backup.ini
-rw-rw-r--. 1 postgres postgres  468 Nov 17 23:47 file_arclog.txt
-rw-rw-r--. 1 postgres postgres 113305 Nov 17 23:47 file_database.txt
-rwx------. 1 postgres postgres  764 Nov 17 23:47 mkdirs.sh
[postgres@node_206 /postgresql/pgsql]$ll pg_rman_backups/20201117/234932/
total 116
drwx------. 2 postgres postgres  118 Nov 17 23:49 arclog
-rw-rw-r--. 1 postgres postgres  428 Nov 17 23:49 backup.ini
drwx------. 19 postgres postgres 4096 Nov 17 23:49 database
-rw-rw-r--. 1 postgres postgres  708 Nov 17 23:49 file_arclog.txt
-rw-rw-r--. 1 postgres postgres 99583 Nov 17 23:49 file_database.txt
-rwx------. 1 postgres postgres  764 Nov 17 23:49 mkdirs.sh
drwx------. 2 postgres postgres   6 Nov 17 23:49 srvlog
[postgres@node_206 /postgresql/pgsql]$pg_rman purge
ERROR: required parameter not specified: BACKUP_PATH (-B, --backup-path)
[postgres@node_206 /postgresql/pgsql]$pg_rman purge -B /postgresql/pgsql/pg_rman_backups/
INFO: DELETED backup "2020-11-17 23:47:09" is purged
INFO: DELETED backup "2020-11-17 23:46:22" is purged
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$ll pg_rman_backups/20201117/234622/
ls: cannot access pg_rman_backups/20201117/234622/: No such file or directory
[postgres@node_206 /postgresql/pgsql]$ll pg_rman_backups/20201117
total 0
drwx------. 5 postgres postgres 133 Nov 17 23:49 234932
drwx------. 5 postgres postgres 133 Nov 17 23:50 234959
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-17 23:49:59 2020-11-17 23:50:01 INCR  33MB   6 OK
2020-11-17 23:49:32 2020-11-17 23:49:35 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql 
psql (12.3)
Type "help" for help.
postgres=# drop database test;
DROP DATABASE
postgres=# \q
[postgres@node_206 /postgresql/pgsql]$pg_ctl stop -m fast
waiting for server to shut down.... done
server stopped
[postgres@node_206 /postgresql/pgsql]$pg_rman restore -B /postgresql/pgsql/pg_rman_backups/ --recovery-target-time='2020-11-17 23:49:32'
ERROR: cannot do restore
DETAIL: There is no valid full backup which can be used for given recovery condition.
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=full -B /postgresql/pgsql/pg_rman_backups
ERROR: could not connect to database postgres: could not connect to server: No such file or directory
	Is the server running locally and accepting
	connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_ctl start
waiting for server to start....2020-11-17 10:53:41.927 EST [59212] LOG: 00000: starting PostgreSQL 12.3 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44), 64-bit
2020-11-17 10:53:41.927 EST [59212] LOCATION: PostmasterMain, postmaster.c:998
2020-11-17 10:53:41.928 EST [59212] LOG: 00000: listening on IPv4 address "0.0.0.0", port 5432
2020-11-17 10:53:41.928 EST [59212] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 10:53:41.928 EST [59212] LOG: 00000: listening on IPv6 address "::", port 5432
2020-11-17 10:53:41.928 EST [59212] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 10:53:41.929 EST [59212] LOG: 00000: listening on Unix socket "/tmp/.s.PGSQL.5432"
2020-11-17 10:53:41.929 EST [59212] LOCATION: StreamServerPort, pqcomm.c:587
2020-11-17 10:53:41.977 EST [59212] LOG: 00000: redirecting log output to logging collector process
2020-11-17 10:53:41.977 EST [59212] HINT: Future log output will appear in directory "/postgresql/pgsql/pg_log".
2020-11-17 10:53:41.977 EST [59212] LOCATION: SysLogger_Start, syslogger.c:675
 done
server started
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=full -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
INFO: copying archived WAL files
INFO: backup complete
INFO: Please execute 'pg_rman validate' to verify the files are correctly copied.
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
INFO: validate: "2020-11-17 23:53:43" backup and archive log files by CRC
INFO: backup "2020-11-17 23:53:43" is valid
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-17 23:53:43 2020-11-17 23:53:45 FULL  75MB   6 OK
2020-11-17 23:53:39 2020-11-17 23:53:39 FULL   0B   0 ERROR
2020-11-17 23:49:59 2020-11-17 23:50:01 INCR  33MB   6 OK
2020-11-17 23:49:32 2020-11-17 23:49:35 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql -d test
psql: error: could not connect to server: FATAL: database "test" does not exist
[postgres@node_206 /postgresql/pgsql]$psql 
psql (12.3)
Type "help" for help.
postgres=# create database test;
CREATE DATABASE
postgres=# \c test
You are now connected to database "test" as user "postgres".
test=# create table test2(id int, crt_time timestamp );
CREATE TABLE
test=# insert into test2(id) select n from generate_series(1,100) n;
INSERT 0 100
test=# 
test=# \q
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=full -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
INFO: copying archived WAL files
INFO: backup complete
INFO: Please execute 'pg_rman validate' to verify the files are correctly copied.
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
INFO: validate: "2020-11-17 23:58:53" backup and archive log files by CRC
INFO: backup "2020-11-17 23:58:53" is valid
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-17 23:58:53 2020-11-17 23:58:55 FULL  64MB   6 OK
2020-11-17 23:53:43 2020-11-17 23:53:45 FULL  75MB   6 OK
2020-11-17 23:53:39 2020-11-17 23:53:39 FULL   0B   0 ERROR
2020-11-17 23:49:59 2020-11-17 23:50:01 INCR  33MB   6 OK
2020-11-17 23:49:32 2020-11-17 23:49:35 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman delete -f 2020-11-17 23:53:39 -B /postgresql/pgsql/pg_rman_backups/
WARNING: using force option will make some of the remaining backups unusable
DETAIL: Any remaining incremental backups that are older than the oldest available full backup cannot be restored.
INFO: delete the backup with start time: "2020-11-17 23:53:39"
INFO: delete the backup with start time: "2020-11-17 23:49:59"
INFO: delete the backup with start time: "2020-11-17 23:49:32"
[postgres@node_206 /postgresql/pgsql]$pg_rman purge -B /postgresql/pgsql/pg_rman_backups/
INFO: DELETED backup "2020-11-17 23:53:39" is purged
INFO: DELETED backup "2020-11-17 23:49:59" is purged
INFO: DELETED backup "2020-11-17 23:49:32" is purged
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-17 23:58:53 2020-11-17 23:58:55 FULL  64MB   6 OK
2020-11-17 23:53:43 2020-11-17 23:53:45 FULL  75MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql 
psql (12.3)
Type "help" for help.
postgres=# \c test
You are now connected to database "test" as user "postgres".
test=# \dt
     List of relations
 Schema | Name | Type | Owner  
--------+-------+-------+----------
 public | test2 | table | postgres
(1 row)
test=# \c postgres
You are now connected to database "postgres" as user "postgres".
postgres=# drop database test;
DROP DATABASE
postgres=# \q
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-17 23:58:53 2020-11-17 23:58:55 FULL  64MB   6 OK
2020-11-17 23:53:43 2020-11-17 23:53:45 FULL  75MB   6 OK
[postgres@node_206 /postgresql/pgsql]$pg_rman restore -B /postgresql/pgsql/pg_rman_backups/ --recovery-target-time='2020-11-17 23:58:53'
ERROR: PostgreSQL server is running
HINT: Please stop PostgreSQL server before executing restore.
[postgres@node_206 /postgresql/pgsql]$pg_ctl stop -m fast
waiting for server to shut down.... done
server stopped
[postgres@node_206 /postgresql/pgsql]$pg_rman restore -B /postgresql/pgsql/pg_rman_backups/ --recovery-target-time='2020-11-17 23:58:53'
INFO: the recovery target timeline ID is not given
INFO: use timeline ID of current database cluster as recovery target: 6
INFO: calculating timeline branches to be used to recovery target point
INFO: searching latest full backup which can be used as restore start point
INFO: found the full backup can be used as base in recovery: "2020-11-17 23:53:43"
INFO: copying online WAL files and server log files
INFO: clearing restore destination
INFO: validate: "2020-11-17 23:53:43" backup and archive log files by SIZE
INFO: backup "2020-11-17 23:53:43" is valid
INFO: restoring database files from the full mode backup "2020-11-17 23:53:43"
INFO: searching incremental backup to be restored
INFO: searching backup which contained archived WAL files to be restored
INFO: backup "2020-11-17 23:53:43" is valid
INFO: restoring WAL files from backup "2020-11-17 23:53:43"
INFO: backup "2020-11-17 23:58:53" is valid
INFO: restoring WAL files from backup "2020-11-17 23:58:53"
INFO: restoring online WAL files and server log files
INFO: add recovery related options to postgresql.conf
INFO: generating recovery.signal
INFO: restore complete
HINT: Recovery will start automatically when the PostgreSQL server is started.
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=full -B /postgresql/pgsql/pg_rman_backups
ERROR: could not connect to database postgres: could not connect to server: No such file or directory
	Is the server running locally and accepting
	connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
[postgres@node_206 /postgresql/pgsql]$pg_ctl start 
waiting for server to start....2020-11-17 11:00:30.910 EST [59357] LOG: 00000: starting PostgreSQL 12.3 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44), 64-bit
2020-11-17 11:00:30.910 EST [59357] LOCATION: PostmasterMain, postmaster.c:998
2020-11-17 11:00:30.910 EST [59357] LOG: 00000: listening on IPv4 address "0.0.0.0", port 5432
2020-11-17 11:00:30.910 EST [59357] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 11:00:30.910 EST [59357] LOG: 00000: listening on IPv6 address "::", port 5432
2020-11-17 11:00:30.910 EST [59357] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 11:00:30.914 EST [59357] LOG: 00000: listening on Unix socket "/tmp/.s.PGSQL.5432"
2020-11-17 11:00:30.914 EST [59357] LOCATION: StreamServerPort, pqcomm.c:587
2020-11-17 11:00:30.965 EST [59357] LOG: 00000: redirecting log output to logging collector process
2020-11-17 11:00:30.965 EST [59357] HINT: Future log output will appear in directory "/postgresql/pgsql/pg_log".
2020-11-17 11:00:30.965 EST [59357] LOCATION: SysLogger_Start, syslogger.c:675
 done
server started
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=full -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
ERROR: query failed: ERROR: recovery is in progress
HINT: pg_walfile_name_offset() cannot be executed during recovery.
query was: SELECT * from pg_walfile_name_offset(pg_start_backup($1, $2, $3))
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$rm -f data/recovery.signal 
[postgres@node_206 /postgresql/pgsql]$pg_ctl restart -m fast
waiting for server to shut down.... done
server stopped
waiting for server to start....2020-11-17 11:00:51.204 EST [59374] LOG: 00000: starting PostgreSQL 12.3 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44), 64-bit
2020-11-17 11:00:51.204 EST [59374] LOCATION: PostmasterMain, postmaster.c:998
2020-11-17 11:00:51.205 EST [59374] LOG: 00000: listening on IPv4 address "0.0.0.0", port 5432
2020-11-17 11:00:51.205 EST [59374] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 11:00:51.205 EST [59374] LOG: 00000: listening on IPv6 address "::", port 5432
2020-11-17 11:00:51.205 EST [59374] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 11:00:51.210 EST [59374] LOG: 00000: listening on Unix socket "/tmp/.s.PGSQL.5432"
2020-11-17 11:00:51.210 EST [59374] LOCATION: StreamServerPort, pqcomm.c:587
2020-11-17 11:00:51.270 EST [59374] LOG: 00000: redirecting log output to logging collector process
2020-11-17 11:00:51.270 EST [59374] HINT: Future log output will appear in directory "/postgresql/pgsql/pg_log".
2020-11-17 11:00:51.270 EST [59374] LOCATION: SysLogger_Start, syslogger.c:675
 done
server started
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=full -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
INFO: copying archived WAL files
INFO: backup complete
INFO: Please execute 'pg_rman validate' to verify the files are correctly copied.
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
INFO: validate: "2020-11-18 00:00:53" backup and archive log files by CRC
INFO: backup "2020-11-18 00:00:53" is valid
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-18 00:00:53 2020-11-18 00:00:55 FULL  159MB   6 OK
2020-11-18 00:00:34 2020-11-18 00:00:34 FULL   0B   0 ERROR
2020-11-18 00:00:26 2020-11-18 00:00:26 FULL   0B   0 ERROR
2020-11-17 23:58:53 2020-11-17 23:58:55 FULL  64MB   6 OK
2020-11-17 23:53:43 2020-11-17 23:53:45 FULL  75MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql 
psql (12.3)
Type "help" for help.
postgres=# \l
                 List of databases
  Name  | Owner  | Encoding |  Collate  |  Ctype  |  Access privileges  
-----------+----------+----------+-------------+-------------+-----------------------
 postgres | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 repmgr  | repmgr  | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 template0 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 template1 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
(4 rows)
postgres=# \c test
FATAL: database "test" does not exist
Previous connection kept
postgres=# \q
[postgres@node_206 /postgresql/pgsql]$vim $PGDATA/postgresql.conf
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-18 00:00:53 2020-11-18 00:00:55 FULL  159MB   6 OK
2020-11-18 00:00:34 2020-11-18 00:00:34 FULL   0B   0 ERROR
2020-11-18 00:00:26 2020-11-18 00:00:26 FULL   0B   0 ERROR
2020-11-17 23:58:53 2020-11-17 23:58:55 FULL  64MB   6 OK
2020-11-17 23:53:43 2020-11-17 23:53:45 FULL  75MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql 
psql (12.3)
Type "help" for help.
postgres=# \l
                 List of databases
  Name  | Owner  | Encoding |  Collate  |  Ctype  |  Access privileges  
-----------+----------+----------+-------------+-------------+-----------------------
 postgres | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 repmgr  | repmgr  | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 template0 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 template1 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
(4 rows)
postgres=# \c test
FATAL: database "test" does not exist
Previous connection kept
postgres=# \q
[postgres@node_206 /postgresql/pgsql]$vim $PGDATA/postgresql.conf
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_ctl restart -m fast
waiting for server to shut down.... done
server stopped
waiting for server to start....2020-11-17 11:01:30.816 EST [59423] LOG: 00000: starting PostgreSQL 12.3 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44), 64-bit
2020-11-17 11:01:30.816 EST [59423] LOCATION: PostmasterMain, postmaster.c:998
2020-11-17 11:01:30.822 EST [59423] LOG: 00000: listening on IPv4 address "0.0.0.0", port 5432
2020-11-17 11:01:30.822 EST [59423] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 11:01:30.822 EST [59423] LOG: 00000: listening on IPv6 address "::", port 5432
2020-11-17 11:01:30.822 EST [59423] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 11:01:30.837 EST [59423] LOG: 00000: listening on Unix socket "/tmp/.s.PGSQL.5432"
2020-11-17 11:01:30.837 EST [59423] LOCATION: StreamServerPort, pqcomm.c:587
2020-11-17 11:01:30.877 EST [59423] LOG: 00000: redirecting log output to logging collector process
2020-11-17 11:01:30.877 EST [59423] HINT: Future log output will appear in directory "/postgresql/pgsql/pg_log".
2020-11-17 11:01:30.877 EST [59423] LOCATION: SysLogger_Start, syslogger.c:675
 done
server started
[postgres@node_206 /postgresql/pgsql]$ll
total 28
drwxr-xr-x. 2 postgres postgres 4096 Nov 18 00:01 archive_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 15:51 backups
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 16:43 bin
drwx------. 19 postgres postgres 4096 Nov 18 00:01 data
drwxr-xr-x. 6 postgres postgres 4096 Nov 15 16:14 include
drwxr-xr-x. 4 postgres postgres 4096 Nov 17 06:37 lib
drwxr-xr-x. 2 postgres postgres 4096 Nov 18 00:01 pg_log
drwxrwxr-x. 6 postgres postgres 120 Nov 18 00:00 pg_rman_backups
drwxr-xr-x. 8 postgres postgres 4096 Nov 15 16:14 share
[postgres@node_206 /postgresql/pgsql]$rm -rf archive_log/* pg_rman_backups/*
[postgres@node_206 /postgresql/pgsql]$ll
total 24
drwxr-xr-x. 2 postgres postgres  6 Nov 18 00:01 archive_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 15:51 backups
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 16:43 bin
drwx------. 19 postgres postgres 4096 Nov 18 00:01 data
drwxr-xr-x. 6 postgres postgres 4096 Nov 15 16:14 include
drwxr-xr-x. 4 postgres postgres 4096 Nov 17 06:37 lib
drwxr-xr-x. 2 postgres postgres 4096 Nov 18 00:01 pg_log
drwxrwxr-x. 2 postgres postgres  6 Nov 18 00:01 pg_rman_backups
drwxr-xr-x. 8 postgres postgres 4096 Nov 15 16:14 share
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$ls
archive_log backups bin data include lib pg_log pg_rman_backups share
[postgres@node_206 /postgresql/pgsql]$ll
total 24
drwxr-xr-x. 2 postgres postgres  6 Nov 18 00:01 archive_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 15:51 backups
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 16:43 bin
drwx------. 19 postgres postgres 4096 Nov 18 00:01 data
drwxr-xr-x. 6 postgres postgres 4096 Nov 15 16:14 include
drwxr-xr-x. 4 postgres postgres 4096 Nov 17 06:37 lib
drwxr-xr-x. 2 postgres postgres 4096 Nov 18 00:01 pg_log
drwxrwxr-x. 2 postgres postgres  6 Nov 18 00:01 pg_rman_backups
drwxr-xr-x. 8 postgres postgres 4096 Nov 15 16:14 share
[postgres@node_206 /postgresql/pgsql]$ll pg_rman_backups/
total 0
[postgres@node_206 /postgresql/pgsql]$ll archive_log/
total 0
[postgres@node_206 /postgresql/pgsql]$ll
total 24
drwxr-xr-x. 2 postgres postgres  6 Nov 18 00:01 archive_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 15:51 backups
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 16:43 bin
drwx------. 19 postgres postgres 4096 Nov 18 00:01 data
drwxr-xr-x. 6 postgres postgres 4096 Nov 15 16:14 include
drwxr-xr-x. 4 postgres postgres 4096 Nov 17 06:37 lib
drwxr-xr-x. 2 postgres postgres 4096 Nov 18 00:01 pg_log
drwxrwxr-x. 2 postgres postgres  6 Nov 18 00:01 pg_rman_backups
drwxr-xr-x. 8 postgres postgres 4096 Nov 15 16:14 share
[postgres@node_206 /postgresql/pgsql]$vim $PGDATA/postgresql.conf
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$ls
archive_log backups bin data include lib pg_log pg_rman_backups share
[postgres@node_206 /postgresql/pgsql]$ll
total 24
drwxr-xr-x. 2 postgres postgres  6 Nov 18 00:01 archive_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 15:51 backups
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 16:43 bin
drwx------. 19 postgres postgres 4096 Nov 18 00:01 data
drwxr-xr-x. 6 postgres postgres 4096 Nov 15 16:14 include
drwxr-xr-x. 4 postgres postgres 4096 Nov 17 06:37 lib
drwxr-xr-x. 2 postgres postgres 4096 Nov 18 00:01 pg_log
drwxrwxr-x. 2 postgres postgres  6 Nov 18 00:01 pg_rman_backups
drwxr-xr-x. 8 postgres postgres 4096 Nov 15 16:14 share
[postgres@node_206 /postgresql/pgsql]$ll pg_rman_backups/
total 0
[postgres@node_206 /postgresql/pgsql]$ll archive_log/
total 0
[postgres@node_206 /postgresql/pgsql]$ll
total 24
drwxr-xr-x. 2 postgres postgres  6 Nov 18 00:01 archive_log
drwxrwxr-x. 2 postgres postgres  6 Nov 17 15:51 backups
drwxr-xr-x. 2 postgres postgres 4096 Nov 17 16:43 bin
drwx------. 19 postgres postgres 4096 Nov 18 00:01 data
drwxr-xr-x. 6 postgres postgres 4096 Nov 15 16:14 include
drwxr-xr-x. 4 postgres postgres 4096 Nov 17 06:37 lib
drwxr-xr-x. 2 postgres postgres 4096 Nov 18 00:01 pg_log
drwxrwxr-x. 2 postgres postgres  6 Nov 18 00:01 pg_rman_backups
drwxr-xr-x. 8 postgres postgres 4096 Nov 15 16:14 share
[postgres@node_206 /postgresql/pgsql]$vim $PGDATA/postgresql.conf
[postgres@node_206 /postgresql/pgsql]$pg_ctl restart
waiting for server to shut down.... done
server stopped
waiting for server to start....2020-11-17 11:08:26.228 EST [59464] LOG: 00000: starting PostgreSQL 12.3 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44), 64-bit
2020-11-17 11:08:26.228 EST [59464] LOCATION: PostmasterMain, postmaster.c:998
2020-11-17 11:08:26.233 EST [59464] LOG: 00000: listening on IPv4 address "0.0.0.0", port 5432
2020-11-17 11:08:26.233 EST [59464] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 11:08:26.233 EST [59464] LOG: 00000: listening on IPv6 address "::", port 5432
2020-11-17 11:08:26.233 EST [59464] LOCATION: StreamServerPort, pqcomm.c:593
2020-11-17 11:08:26.236 EST [59464] LOG: 00000: listening on Unix socket "/tmp/.s.PGSQL.5432"
2020-11-17 11:08:26.236 EST [59464] LOCATION: StreamServerPort, pqcomm.c:587
2020-11-17 11:08:26.293 EST [59464] LOG: 00000: redirecting log output to logging collector process
2020-11-17 11:08:26.293 EST [59464] HINT: Future log output will appear in directory "/postgresql/pgsql/pg_log".
2020-11-17 11:08:26.293 EST [59464] LOCATION: SysLogger_Start, syslogger.c:675
 done
server started
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pwd
/postgresql/pgsql
[postgres@node_206 /postgresql/pgsql]$psql
psql (12.3)
Type "help" for help.
postgres=# \l
                 List of databases
  Name  | Owner  | Encoding |  Collate  |  Ctype  |  Access privileges  
-----------+----------+----------+-------------+-------------+-----------------------
 postgres | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 repmgr  | repmgr  | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 template0 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 template1 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
(4 rows)
postgres=# \q
[postgres@node_206 /postgresql/pgsql]$pg_rman init -B /postgresql/pgsql/pg_rman_backups/
INFO: ARCLOG_PATH is set to '/postgresql/pgsql/archive_log'
INFO: SRVLOG_PATH is set to '/postgresql/pgsql/pg_log'
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql
psql (12.3)
Type "help" for help.
postgres=# create database test;
CREATE DATABASE
postgres=# \c test
You are now connected to database "test" as user "postgres".
test=# create table test(id int, crt_time timestamp default clock_timestamp());
CREATE TABLE
test=# insert into test (id) select n from generate_series(1,100) n;
INSERT 0 100
test=# \q
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=full -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
INFO: copying archived WAL files
INFO: backup complete
INFO: Please execute 'pg_rman validate' to verify the files are correctly copied.
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
INFO: validate: "2020-11-18 00:09:40" backup and archive log files by CRC
INFO: backup "2020-11-18 00:09:40" is valid
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql -d test
psql (12.3)
Type "help" for help.
test=# insert into test (id) select n from generate_series(101,110) n;
INSERT 0 10
test=# \q
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=incremental -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
INFO: copying archived WAL files
INFO: backup complete
INFO: Please execute 'pg_rman validate' to verify the files are correctly copied.
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-18 00:10:03 2020-11-18 00:10:05 INCR  33MB   6 DONE
2020-11-18 00:09:40 2020-11-18 00:09:42 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
INFO: validate: "2020-11-18 00:10:03" backup and archive log files by CRC
INFO: backup "2020-11-18 00:10:03" is valid
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-18 00:10:03 2020-11-18 00:10:05 INCR  33MB   6 OK
2020-11-18 00:09:40 2020-11-18 00:09:42 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql -d test
psql (12.3)
Type "help" for help.
test=# create table test2(like test);
CREATE TABLE
test=# insert into test2 (id) select n from generate_series(1,100) n;
INSERT 0 100
test=# \q
[postgres@node_206 /postgresql/pgsql]$pg_rman backup --backup-mode=full -B /postgresql/pgsql/pg_rman_backups
INFO: copying database files
INFO: copying archived WAL files
INFO: backup complete
INFO: Please execute 'pg_rman validate' to verify the files are correctly copied.
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-18 00:10:49 2020-11-18 00:10:51 FULL  64MB   6 DONE
2020-11-18 00:10:03 2020-11-18 00:10:05 INCR  33MB   6 OK
2020-11-18 00:09:40 2020-11-18 00:09:42 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$pg_rman validate -B /postgresql/pgsql/pg_rman_backups
INFO: validate: "2020-11-18 00:10:49" backup and archive log files by CRC
INFO: backup "2020-11-18 00:10:49" is valid
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-18 00:10:49 2020-11-18 00:10:51 FULL  64MB   6 OK
2020-11-18 00:10:03 2020-11-18 00:10:05 INCR  33MB   6 OK
2020-11-18 00:09:40 2020-11-18 00:09:42 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman delete -f 2020-11-18 00:10:03 
ERROR: required parameter not specified: BACKUP_PATH (-B, --backup-path)
[postgres@node_206 /postgresql/pgsql]$pg_rman delete -f 2020-11-18 00:10:03 -B /postgresql/pgsql/pg_rman_backups/
WARNING: using force option will make some of the remaining backups unusable
DETAIL: Any remaining incremental backups that are older than the oldest available full backup cannot be restored.
INFO: delete the backup with start time: "2020-11-18 00:10:03"
INFO: delete the backup with start time: "2020-11-18 00:09:40"
[postgres@node_206 /postgresql/pgsql]$pg_rman purge -B /postgresql/pgsql/pg_rman_backups/
INFO: DELETED backup "2020-11-18 00:10:03" is purged
INFO: DELETED backup "2020-11-18 00:09:40" is purged
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$pg_rman show -B /postgresql/pgsql/pg_rman_backups/
=====================================================================
 StartTime      EndTime       Mode  Size  TLI Status 
=====================================================================
2020-11-18 00:10:49 2020-11-18 00:10:51 FULL  64MB   6 OK
[postgres@node_206 /postgresql/pgsql]$
[postgres@node_206 /postgresql/pgsql]$psql 
psql (12.3)
Type "help" for help.
postgres=# \l
                 List of databases
  Name  | Owner  | Encoding |  Collate  |  Ctype  |  Access privileges  
-----------+----------+----------+-------------+-------------+-----------------------
 postgres | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 repmgr  | repmgr  | UTF8   | en_US.UTF-8 | en_US.UTF-8 | 
 template0 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 template1 | postgres | UTF8   | en_US.UTF-8 | en_US.UTF-8 | =c/postgres     +
      |     |     |       |       | postgres=CTc/postgres
 test   | postgres | UTF8