Question

我可以知道在HA服务器上配置Barman的时候，是否需要在barman服务器上安装Postgres？

当我做酒吧检查时，我的输出是这样的：

    PostgreSQL: OK
    is_superuser: OK
    PostgreSQL streaming: OK
    wal_level: OK
    replication slot: FAILED (slot 'barman' not initialised: is 'receive-wal' running?)
    directories: OK
    retention policy settings: OK
    backup maximum age: FAILED (interval provided: 1 day, latest backup age: No available backups)
    compression settings: OK
    failed backups: OK (there are 0 failed backups)
    minimum redundancy requirements: OK (have 0 backups, expected at least 0)
    pg_basebackup: OK
    pg_basebackup compatible: OK
    pg_basebackup supports tablespaces mapping: OK
    archive_mode: OK
    archive_command: OK
    continuous archiving: OK
    pg_receivexlog: FAILED
    pg_receivexlog compatible: FAILED (PostgreSQL version: 9.4.17, pg_receivexlog version: None)
    receive-wal running: FAILED (See the Barman log file for more details)
    archiver errors: OK

如何在barman服务器上安装pg_receivexlog？

由于

伊娃

Answer 1

编辑postgresql.conf并配置PostgreSQL数据库具有此选项的服务器

#postgresql.conf

max_wal_senders = 2
max_replication_slots = 2
wal_level = 'replica' or 'hot_standby'

然后在命令行中执行以下命令：

createuser -P --replication streaming_barman

那将创建酒保流媒体用户。然后去pg_hba.conf 并配置用户和酒保服务器IP连接，如下所示

#pg_hba.conf
host    replication    streaming_barman            X.X.X.X/32               trust

在酒保服务器上运行

barman cron

Answer 2

取决于您的分布。例如。基于Debian的发行版上的pg_receivexlog是特定版本postgresql-client-9.6 postgresql-client-10的客户端的一部分（“ postgresql-client-common contains pg_wrapper`试图找到合适的二进制文件）。根据您的情况，您应该安装：

apt-get install postgresql-client-9.4

客户端二进制文件应安装在专用目录中，例如：

/usr/lib/postgresql/9.4/bin

然后运行

barman cron

后跟barman check：

barman check psql-server

如果本地版本早于您要备份的服务器，则可能需要酒保$PATH更新：

pg_receivexlog compatible: FAILED (PostgreSQL version: 12.0, pg_receivexlog version: 11.5-3.pgdg90+1))

您可以轻松检查男服务员在哪里寻找二进制文件：

$ barman show-server psql-server | grep pg_receivewal
        pg_receivexlog_path: /usr/bin/pg_receivewal

Barman具有参数path_prefix，该参数可以覆盖每个服务器的全局配置：

path_prefix = /usr/lib/postgresql/10/bin

barman的配置，pg_receivexlog失败了

2 个答案: