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Committer: fruworg <im@fruw.org> On branch main Your branch is up to date with 'origin/main'. Changes to be committed: new file: .gitmodules new file: archetypes/default.md new file: config.toml new file: content/posts/ald-pro.md new file: content/posts/astra-fly.md new file: content/posts/astra-freeipa.md new file: content/posts/bareos-install.md new file: content/posts/cifs-automount.md new file: content/posts/create-user-keytab.md new file: content/posts/create-user-keytab.md.save new file: content/posts/dhcp-resolv.md new file: content/posts/github-ssh-auth.md new file: content/posts/ip-command.md new file: content/posts/linux-krb5.md new file: content/posts/linux-network.md new file: content/posts/linux-nfs.md.save new file: content/posts/linux-packages-rebuild.md new file: content/posts/lvm-base-commands.md new file: content/posts/pfx-to-pem.md new file: content/posts/pg-probackup-setup.md.save new file: content/posts/pg-probackup-setup.md.save.1 new file: content/posts/postgres-drop-db.md new file: content/posts/postgres-krb5.md new file: content/posts/postgres-ldaps.md new file: content/posts/postgres-pro-astra-se.md new file: content/posts/postgres-replication.md new file: content/posts/postgres-simple-backup.md new file: content/posts/postgres-tls.md new file: content/posts/reverse-shell-nc.md new file: content/posts/run-nologin.md new file: content/posts/security-solutions.md new file: content/posts/selfsigned-to-trusted.md new file: content/posts/ssh-2fa-totp.md new file: content/posts/ssh-auth-by-key.md new file: content/posts/ssh-fail2ban.md new file: content/posts/vmware-clipboard.md new file: content/posts/vmware-restart-date.md new file: content/posts/windows-disable-shutdown.md new file: static/0x952C15AB751A65F6 new file: static/favicon.ico new file: static/fruworg.png new file: themes/archie Changes not staged for commit: modified: themes/archie (modified content)
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---
title: Настройка физической репликации Postgres Pro
description: Потоковая репликация и репликация с архивом
date: 2022-11-25T16:51:00+05:00
tags: [linux, postgres, nfs]
---
## Установка Postgres Pro
Процесс установки описан в [этом посте](//fruw.org/posts/postgres-pro-astra-se).
## Потоковая репликация
Про различия в реализациях репликаций можно почитать вот [здесь](//edu.postgrespro.ru/dba3/dba3_04_replica_physical.pdf).
### Конфигурация master
Действия с Postgres Pro следует выполнять от имени пользователя postgres.
remove shell
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```
Committer: fruworg <im@fruw.org> On branch main Your branch is up to date with 'origin/main'. Changes to be committed: new file: .gitmodules new file: archetypes/default.md new file: config.toml new file: content/posts/ald-pro.md new file: content/posts/astra-fly.md new file: content/posts/astra-freeipa.md new file: content/posts/bareos-install.md new file: content/posts/cifs-automount.md new file: content/posts/create-user-keytab.md new file: content/posts/create-user-keytab.md.save new file: content/posts/dhcp-resolv.md new file: content/posts/github-ssh-auth.md new file: content/posts/ip-command.md new file: content/posts/linux-krb5.md new file: content/posts/linux-network.md new file: content/posts/linux-nfs.md.save new file: content/posts/linux-packages-rebuild.md new file: content/posts/lvm-base-commands.md new file: content/posts/pfx-to-pem.md new file: content/posts/pg-probackup-setup.md.save new file: content/posts/pg-probackup-setup.md.save.1 new file: content/posts/postgres-drop-db.md new file: content/posts/postgres-krb5.md new file: content/posts/postgres-ldaps.md new file: content/posts/postgres-pro-astra-se.md new file: content/posts/postgres-replication.md new file: content/posts/postgres-simple-backup.md new file: content/posts/postgres-tls.md new file: content/posts/reverse-shell-nc.md new file: content/posts/run-nologin.md new file: content/posts/security-solutions.md new file: content/posts/selfsigned-to-trusted.md new file: content/posts/ssh-2fa-totp.md new file: content/posts/ssh-auth-by-key.md new file: content/posts/ssh-fail2ban.md new file: content/posts/vmware-clipboard.md new file: content/posts/vmware-restart-date.md new file: content/posts/windows-disable-shutdown.md new file: static/0x952C15AB751A65F6 new file: static/favicon.ico new file: static/fruworg.png new file: themes/archie Changes not staged for commit: modified: themes/archie (modified content)
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su - postgres
```
#### Создание пользователя для репликации
remove shell
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```
Committer: fruworg <im@fruw.org> On branch main Your branch is up to date with 'origin/main'. Changes to be committed: new file: .gitmodules new file: archetypes/default.md new file: config.toml new file: content/posts/ald-pro.md new file: content/posts/astra-fly.md new file: content/posts/astra-freeipa.md new file: content/posts/bareos-install.md new file: content/posts/cifs-automount.md new file: content/posts/create-user-keytab.md new file: content/posts/create-user-keytab.md.save new file: content/posts/dhcp-resolv.md new file: content/posts/github-ssh-auth.md new file: content/posts/ip-command.md new file: content/posts/linux-krb5.md new file: content/posts/linux-network.md new file: content/posts/linux-nfs.md.save new file: content/posts/linux-packages-rebuild.md new file: content/posts/lvm-base-commands.md new file: content/posts/pfx-to-pem.md new file: content/posts/pg-probackup-setup.md.save new file: content/posts/pg-probackup-setup.md.save.1 new file: content/posts/postgres-drop-db.md new file: content/posts/postgres-krb5.md new file: content/posts/postgres-ldaps.md new file: content/posts/postgres-pro-astra-se.md new file: content/posts/postgres-replication.md new file: content/posts/postgres-simple-backup.md new file: content/posts/postgres-tls.md new file: content/posts/reverse-shell-nc.md new file: content/posts/run-nologin.md new file: content/posts/security-solutions.md new file: content/posts/selfsigned-to-trusted.md new file: content/posts/ssh-2fa-totp.md new file: content/posts/ssh-auth-by-key.md new file: content/posts/ssh-fail2ban.md new file: content/posts/vmware-clipboard.md new file: content/posts/vmware-restart-date.md new file: content/posts/windows-disable-shutdown.md new file: static/0x952C15AB751A65F6 new file: static/favicon.ico new file: static/fruworg.png new file: themes/archie Changes not staged for commit: modified: themes/archie (modified content)
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psql -c "CREATE ROLE repuser WITH REPLICATION LOGIN ENCRYPTED PASSWORD '<password>';"
```
#### Разрешение подключения для slave
Дописываем в конец файла:
remove shell
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```
Committer: fruworg <im@fruw.org> On branch main Your branch is up to date with 'origin/main'. Changes to be committed: new file: .gitmodules new file: archetypes/default.md new file: config.toml new file: content/posts/ald-pro.md new file: content/posts/astra-fly.md new file: content/posts/astra-freeipa.md new file: content/posts/bareos-install.md new file: content/posts/cifs-automount.md new file: content/posts/create-user-keytab.md new file: content/posts/create-user-keytab.md.save new file: content/posts/dhcp-resolv.md new file: content/posts/github-ssh-auth.md new file: content/posts/ip-command.md new file: content/posts/linux-krb5.md new file: content/posts/linux-network.md new file: content/posts/linux-nfs.md.save new file: content/posts/linux-packages-rebuild.md new file: content/posts/lvm-base-commands.md new file: content/posts/pfx-to-pem.md new file: content/posts/pg-probackup-setup.md.save new file: content/posts/pg-probackup-setup.md.save.1 new file: content/posts/postgres-drop-db.md new file: content/posts/postgres-krb5.md new file: content/posts/postgres-ldaps.md new file: content/posts/postgres-pro-astra-se.md new file: content/posts/postgres-replication.md new file: content/posts/postgres-simple-backup.md new file: content/posts/postgres-tls.md new file: content/posts/reverse-shell-nc.md new file: content/posts/run-nologin.md new file: content/posts/security-solutions.md new file: content/posts/selfsigned-to-trusted.md new file: content/posts/ssh-2fa-totp.md new file: content/posts/ssh-auth-by-key.md new file: content/posts/ssh-fail2ban.md new file: content/posts/vmware-clipboard.md new file: content/posts/vmware-restart-date.md new file: content/posts/windows-disable-shutdown.md new file: static/0x952C15AB751A65F6 new file: static/favicon.ico new file: static/fruworg.png new file: themes/archie Changes not staged for commit: modified: themes/archie (modified content)
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host replication repuser <slave-ip>/32 md5
# /var/lib/pgpro/std-13/data/pg_hba.conf
```
#### Реконфигурация
remove shell
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```
Committer: fruworg <im@fruw.org> On branch main Your branch is up to date with 'origin/main'. Changes to be committed: new file: .gitmodules new file: archetypes/default.md new file: config.toml new file: content/posts/ald-pro.md new file: content/posts/astra-fly.md new file: content/posts/astra-freeipa.md new file: content/posts/bareos-install.md new file: content/posts/cifs-automount.md new file: content/posts/create-user-keytab.md new file: content/posts/create-user-keytab.md.save new file: content/posts/dhcp-resolv.md new file: content/posts/github-ssh-auth.md new file: content/posts/ip-command.md new file: content/posts/linux-krb5.md new file: content/posts/linux-network.md new file: content/posts/linux-nfs.md.save new file: content/posts/linux-packages-rebuild.md new file: content/posts/lvm-base-commands.md new file: content/posts/pfx-to-pem.md new file: content/posts/pg-probackup-setup.md.save new file: content/posts/pg-probackup-setup.md.save.1 new file: content/posts/postgres-drop-db.md new file: content/posts/postgres-krb5.md new file: content/posts/postgres-ldaps.md new file: content/posts/postgres-pro-astra-se.md new file: content/posts/postgres-replication.md new file: content/posts/postgres-simple-backup.md new file: content/posts/postgres-tls.md new file: content/posts/reverse-shell-nc.md new file: content/posts/run-nologin.md new file: content/posts/security-solutions.md new file: content/posts/selfsigned-to-trusted.md new file: content/posts/ssh-2fa-totp.md new file: content/posts/ssh-auth-by-key.md new file: content/posts/ssh-fail2ban.md new file: content/posts/vmware-clipboard.md new file: content/posts/vmware-restart-date.md new file: content/posts/windows-disable-shutdown.md new file: static/0x952C15AB751A65F6 new file: static/favicon.ico new file: static/fruworg.png new file: themes/archie Changes not staged for commit: modified: themes/archie (modified content)
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listen_addresses = 'localhost, <master-ip>'
wal_level = hot_standby
archive_mode = on
archive_command = 'cd .'
max_wal_senders = 8
hot_standby = on
# /var/lib/pgpro/std-13/data/postgresql.conf
```
#### Перезапуск Postgres Pro
remove shell
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```
Committer: fruworg <im@fruw.org> On branch main Your branch is up to date with 'origin/main'. Changes to be committed: new file: .gitmodules new file: archetypes/default.md new file: config.toml new file: content/posts/ald-pro.md new file: content/posts/astra-fly.md new file: content/posts/astra-freeipa.md new file: content/posts/bareos-install.md new file: content/posts/cifs-automount.md new file: content/posts/create-user-keytab.md new file: content/posts/create-user-keytab.md.save new file: content/posts/dhcp-resolv.md new file: content/posts/github-ssh-auth.md new file: content/posts/ip-command.md new file: content/posts/linux-krb5.md new file: content/posts/linux-network.md new file: content/posts/linux-nfs.md.save new file: content/posts/linux-packages-rebuild.md new file: content/posts/lvm-base-commands.md new file: content/posts/pfx-to-pem.md new file: content/posts/pg-probackup-setup.md.save new file: content/posts/pg-probackup-setup.md.save.1 new file: content/posts/postgres-drop-db.md new file: content/posts/postgres-krb5.md new file: content/posts/postgres-ldaps.md new file: content/posts/postgres-pro-astra-se.md new file: content/posts/postgres-replication.md new file: content/posts/postgres-simple-backup.md new file: content/posts/postgres-tls.md new file: content/posts/reverse-shell-nc.md new file: content/posts/run-nologin.md new file: content/posts/security-solutions.md new file: content/posts/selfsigned-to-trusted.md new file: content/posts/ssh-2fa-totp.md new file: content/posts/ssh-auth-by-key.md new file: content/posts/ssh-fail2ban.md new file: content/posts/vmware-clipboard.md new file: content/posts/vmware-restart-date.md new file: content/posts/windows-disable-shutdown.md new file: static/0x952C15AB751A65F6 new file: static/favicon.ico new file: static/fruworg.png new file: themes/archie Changes not staged for commit: modified: themes/archie (modified content)
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systemctl restart postgres
```
### Настройка slave
#### Выгрузка файлов с master
remove shell
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```
Committer: fruworg <im@fruw.org> On branch main Your branch is up to date with 'origin/main'. Changes to be committed: new file: .gitmodules new file: archetypes/default.md new file: config.toml new file: content/posts/ald-pro.md new file: content/posts/astra-fly.md new file: content/posts/astra-freeipa.md new file: content/posts/bareos-install.md new file: content/posts/cifs-automount.md new file: content/posts/create-user-keytab.md new file: content/posts/create-user-keytab.md.save new file: content/posts/dhcp-resolv.md new file: content/posts/github-ssh-auth.md new file: content/posts/ip-command.md new file: content/posts/linux-krb5.md new file: content/posts/linux-network.md new file: content/posts/linux-nfs.md.save new file: content/posts/linux-packages-rebuild.md new file: content/posts/lvm-base-commands.md new file: content/posts/pfx-to-pem.md new file: content/posts/pg-probackup-setup.md.save new file: content/posts/pg-probackup-setup.md.save.1 new file: content/posts/postgres-drop-db.md new file: content/posts/postgres-krb5.md new file: content/posts/postgres-ldaps.md new file: content/posts/postgres-pro-astra-se.md new file: content/posts/postgres-replication.md new file: content/posts/postgres-simple-backup.md new file: content/posts/postgres-tls.md new file: content/posts/reverse-shell-nc.md new file: content/posts/run-nologin.md new file: content/posts/security-solutions.md new file: content/posts/selfsigned-to-trusted.md new file: content/posts/ssh-2fa-totp.md new file: content/posts/ssh-auth-by-key.md new file: content/posts/ssh-fail2ban.md new file: content/posts/vmware-clipboard.md new file: content/posts/vmware-restart-date.md new file: content/posts/windows-disable-shutdown.md new file: static/0x952C15AB751A65F6 new file: static/favicon.ico new file: static/fruworg.png new file: themes/archie Changes not staged for commit: modified: themes/archie (modified content)
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rm -rf /var/lib/pgpro/std-13/data/*
pg_basebackup -P -R -X stream -c fast -h <master-ip> -U postgres -D \
/var/lib/pgpro/std-13/data
```
## Репликация с архивом
Настройка репликации с архивом выролняется с некоторыми отличиями от потоковой репликации:
### Развёртывание NFS
WAL-архивы будут складываться на NFS. Как сконфигурировать NFS написано [здесь](//fruw.org/posts/linux-nfs).
Необходимо смонтировать NFS на master и slave в одинаковые директории.
### Дополнение к реконфигурации
remove shell
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```
Committer: fruworg <im@fruw.org> On branch main Your branch is up to date with 'origin/main'. Changes to be committed: new file: .gitmodules new file: archetypes/default.md new file: config.toml new file: content/posts/ald-pro.md new file: content/posts/astra-fly.md new file: content/posts/astra-freeipa.md new file: content/posts/bareos-install.md new file: content/posts/cifs-automount.md new file: content/posts/create-user-keytab.md new file: content/posts/create-user-keytab.md.save new file: content/posts/dhcp-resolv.md new file: content/posts/github-ssh-auth.md new file: content/posts/ip-command.md new file: content/posts/linux-krb5.md new file: content/posts/linux-network.md new file: content/posts/linux-nfs.md.save new file: content/posts/linux-packages-rebuild.md new file: content/posts/lvm-base-commands.md new file: content/posts/pfx-to-pem.md new file: content/posts/pg-probackup-setup.md.save new file: content/posts/pg-probackup-setup.md.save.1 new file: content/posts/postgres-drop-db.md new file: content/posts/postgres-krb5.md new file: content/posts/postgres-ldaps.md new file: content/posts/postgres-pro-astra-se.md new file: content/posts/postgres-replication.md new file: content/posts/postgres-simple-backup.md new file: content/posts/postgres-tls.md new file: content/posts/reverse-shell-nc.md new file: content/posts/run-nologin.md new file: content/posts/security-solutions.md new file: content/posts/selfsigned-to-trusted.md new file: content/posts/ssh-2fa-totp.md new file: content/posts/ssh-auth-by-key.md new file: content/posts/ssh-fail2ban.md new file: content/posts/vmware-clipboard.md new file: content/posts/vmware-restart-date.md new file: content/posts/windows-disable-shutdown.md new file: static/0x952C15AB751A65F6 new file: static/favicon.ico new file: static/fruworg.png new file: themes/archie Changes not staged for commit: modified: themes/archie (modified content)
2023-07-26 18:55:24 +03:00
archive_command = 'test ! -f /nfs/%f && cp %p /nfs/%f'
archive_cleanup_command = 'pg_archivecleanup -d /nfs %r 2>>cleanup.log'
# /var/lib/pgpro/std-13/data/postgresql.conf
```
## Синхронный и асинхронный режим репликации
При синхронной репликации, изменения применятся на основном сервере только после того, как они запишутся в WAL хотя бы одной реплики, а при асинхронной - сразу.
По умолчанию репликация работает в асинхронном режиме.
Для того, чтобы она работала в синхронном режиме, необходимо изменить две строки в конфигурационном файле Postgres Pro:
remove shell
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```
Committer: fruworg <im@fruw.org> On branch main Your branch is up to date with 'origin/main'. Changes to be committed: new file: .gitmodules new file: archetypes/default.md new file: config.toml new file: content/posts/ald-pro.md new file: content/posts/astra-fly.md new file: content/posts/astra-freeipa.md new file: content/posts/bareos-install.md new file: content/posts/cifs-automount.md new file: content/posts/create-user-keytab.md new file: content/posts/create-user-keytab.md.save new file: content/posts/dhcp-resolv.md new file: content/posts/github-ssh-auth.md new file: content/posts/ip-command.md new file: content/posts/linux-krb5.md new file: content/posts/linux-network.md new file: content/posts/linux-nfs.md.save new file: content/posts/linux-packages-rebuild.md new file: content/posts/lvm-base-commands.md new file: content/posts/pfx-to-pem.md new file: content/posts/pg-probackup-setup.md.save new file: content/posts/pg-probackup-setup.md.save.1 new file: content/posts/postgres-drop-db.md new file: content/posts/postgres-krb5.md new file: content/posts/postgres-ldaps.md new file: content/posts/postgres-pro-astra-se.md new file: content/posts/postgres-replication.md new file: content/posts/postgres-simple-backup.md new file: content/posts/postgres-tls.md new file: content/posts/reverse-shell-nc.md new file: content/posts/run-nologin.md new file: content/posts/security-solutions.md new file: content/posts/selfsigned-to-trusted.md new file: content/posts/ssh-2fa-totp.md new file: content/posts/ssh-auth-by-key.md new file: content/posts/ssh-fail2ban.md new file: content/posts/vmware-clipboard.md new file: content/posts/vmware-restart-date.md new file: content/posts/windows-disable-shutdown.md new file: static/0x952C15AB751A65F6 new file: static/favicon.ico new file: static/fruworg.png new file: themes/archie Changes not staged for commit: modified: themes/archie (modified content)
2023-07-26 18:55:24 +03:00
synchronous_commit = on
synchronous_standby_names = 'pgsql_0_node_0'
# /var/lib/pgpro/std-13/data/postgresql.conf
```
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