A.5. Release 4.0.0

Tue Nov 21, 2017

repmgr 4.0 is an entirely new version of repmgr, implementing repmgr as a native PostgreSQL extension, adding new and improving existing features, and making repmgr more user-friendly and intuitive to use. The new code base will make it easier to add additional functionality for future releases.

Note: With the new version, the opportunity has been taken to make some changes in the way repmgr is set up and configured. In particular changes have been made to some configuration file settings consistency for and clarity. Changes are covered in detail below

To standardise terminology, from this release primary is used to denote the read/write node in a streaming replication cluster. master is still accepted as an alias for repmgr commands (e.g. repmgr master register).

For detailed instructions on upgrading from repmgr 3.x, see Upgrading from repmgr 3.x.

A.5.1. Features and improvements

A.5.2. New command line options

A.5.3. Changed command line options

repmgr

repmgrd

A.5.4. Configuration file changes

Required settings

The following 4 parameters are mandatory in repmgr.conf:

Renamed settings

Some settings have been renamed for clarity and consistency:

The following configuration file parameters have been renamed for consistency with other parameters (and conform to the pattern used by PostgreSQL itself, which uses the prefix log_ for logging parameters):

Removed settings

Logging changes

A.5.5. repmgrd

The shared library has been renamed from repmgr_funcs to repmgr, meaning shared_preload_libraries in postgresql.conf needs to be updated to the new name:

        shared_preload_libraries = 'repmgr'