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49 lines
1.5 KiB
Markdown
49 lines
1.5 KiB
Markdown
repmgr: Replication Manager for PostgreSQL
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==========================================
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`repmgr` is a suite of open-source tools to manage replication and failover
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within a cluster of PostgreSQL servers. It enhances PostgreSQL's built-in
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replication capabilities with utilities to set up standby servers, monitor
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replication, and perform administrative tasks such as failover or switchover
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operations.
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`repmgr 4` is a complete rewrite of the existing `repmgr` codebase.
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Commands
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--------
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Currently available:
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repmgr master register
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repmgr master unregister
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repmgr standby clone
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repmgr standby register
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repmgr standby unregister
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repmgr standby promote
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repmgr standby follow
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repmgr cluster event [--all] [--node-id] [--node-name] [--event] [--event-matching]
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Backwards compatibility
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-----------------------
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`repmgr` is now implemented as a PostgreSQL extension.
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Metadata tables have been revised and are not backwards-compatible
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with 3.x. (however future DDL updates will be easier as they can be
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carried out via the ALTER EXTENSION mechanism.
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TODO: extension upgrade script for pre-4.0
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Some configuration items have had their names changed for consistency
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and clarity e.g. `node` => `node_id`. `repmgr` will issue a warning
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about deprecated/altered options.
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Some configuration items have been changed to command line options,
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and vice-versa, e.g. to avoid hard-coding things like a node's
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upstream ID which might change.
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TODO: possibly add a config file conversion script/function.
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