patroni

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Alexander Kukushkin 9ba40f0a25 Register Citus secondaries in pg_dist_node

1. All nodes with role == 'replica' and state == 'running' are
   are registered. In case is state isn't running the node is removed.
2. In case of failover/switchover we always first update the primary
3. When switching to a registered secondary we call citus_update_node()
   three times: rename primary to primary-demoted, put the primary name
   to a promoted secondary row and put the promoted secondary name to
   the primary row

State transitions are produced by the transition() method. First of all
the method makes sure that the actual primary is registered in the
metadata. In case if for a given group the primary didn't change, the
method registers new secondaries and removes secondaries that are gone.
It prefers to use citus_update_node() UDF to replace gone secondaries
with added.

Communication protocol between primary nodes remains the same and all
old features work without any changes.

2023-07-13 15:14:07 +02:00

steps

Prevent splitbrain from duplicate names in configuration (#2724 )

2023-07-11 07:43:57 +02:00

archive-restore.py

Rewriten shell scripts in python to make them compatible with windows (#1326 )

2019-12-11 12:07:05 +01:00

backup_create.py

Rewriten shell scripts in python to make them compatible with windows (#1326 )

2019-12-11 12:07:05 +01:00

backup_restore.py

Rewriten shell scripts in python to make them compatible with windows (#1326 )