PostgreSQL Base Backup & Restore

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How to Setup Base Backup

go to data directory

step1:

pg_hba.conf
ipv4 and repliaction entery

 vi pg_hba.conf

# TYPE  DATABASE        USER            ADDRESS                 METHOD

# "local" is for Unix domain socket connections only
local   all             all                                     peer
# IPv4 local connections:
host    all             all             192.168.1.221/32        trust
host    all             all             127.0.0.1/32            ident
# IPv6 local connections:
host    all             all             ::1/128                 ident
# Allow replication connections from localhost, by a user with the
# replication privilege.
local   replication     all                                     peer
host    replication     all             192.168.1.222/32        trust

step2:

vi postgresql.conf

listern_address=*
archive_mode=on
archive_command='cp %p /arch/%f'
wal_level=replica
full_page_writes=on
max_wal_sender=6
wal_keep_segement=500
max_replication_slot=2
log_statement='all'

STEP3: restart the server
su - postgres
cd /usr/pgsql-11/bin
./pg_ctl -D /var/lib/pgsql/11/data restart

step4: run pg_basebackup utility tool

pg_basebackup Options:
                -h hostname
                -p port number
                -P progres
-v verbose
-c checkpoint
-X wals
-R create recovery.conf file
-T tablespace
-T curent_tablespace_directory=backup_tablespace_directory

without tablespace:


./pg_basebackup -h 192.168.1.21 -p 5432 -P -v -X stream or fetch  -c fast -R -Fp -D /backup/bk_1

with tablespace


./pg_basebackup -h 192.168.1.221 -p 5432 -P -v -c fast -X stream -R -T /tbs_1=/tbs_new1 -T /tbs_2=/tbs_new2mn  -Fp -D /backup/bk_`date +%d%m%y%H%M%S`

Restore:

su - postgres
/usr/pgsql-11/bin/pg_ctl -D /bk_1 start

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