repmgr 4.4 was released. repmgr is a tool for PostgreSQL server cluster replication and failover management. It extends the PostgreSQL capability built-in hot-standby, warm standby server may be provided to monitor and perform management tasks replication (failover, manual switch, etc.).
This version is the use repmgrd automatic failover provides two key enhancements:
- On the primary node, repmgrd now possible to monitor standby connection, if the number of nodes connected below a certain value (configurable), custom script is executed, which mainly related to the operation node isolation and off one or more standby databases take other actions to provide additional connection possibilities.
- In the case of failover, repmgrd node on the standby database failure of the primary server can now failover before proceeding to ensure that no one can see the master node.
There are also some client functionality improvements and bug fixes, as well as complete documentation, details View update: