| repmgr 4.1.1 Documentation | |||
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repmgr is developed and tested on Linux and OS X, but should work on any UNIX-like system supported by PostgreSQL itself. There is no support for Microsoft Windows.
From version 4.0, repmgr is compatible with all PostgreSQL versions from 9.3, including PostgreSQL 10. Note that some repmgr functionality is not available in PostgreSQL 9.3 and PostgreSQL 9.4.
Note: If upgrading from repmgr 3.x, please see the section Upgrading from repmgr 3.x.
All servers in the replication cluster must be running the same major version of PostgreSQL, and we recommend that they also run the same minor version.
repmgr must be installed on each server in the replication cluster. If installing repmgr from packages, the package version must match the PostgreSQL version. If installing from source, repmgr must be compiled against the same major version.
A dedicated system user for repmgr is *not* required; as many repmgr and repmgrd actions require direct access to the PostgreSQL data directory, these commands should be executed by the postgres user.
Passwordless ssh connectivity between all servers in the replication cluster is not required, but is necessary in the following cases:
if you need repmgr to copy configuration files from outside the PostgreSQL data directory (in which case rsync is also required)
to perform switchover operations
when executing repmgr cluster matrix and repmgr cluster crosscheck
Tip: We recommend using a session multiplexer utility such as screen or tmux when performing long-running actions (such as cloning a database) on a remote server - this will ensure the repmgr action won't be prematurely terminated if your ssh session to the server is interrupted or closed.