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Clarify standby cluster documentation. (#2369)

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This adds a paragraph to the Standby Cluster section clarifying that the standby cluster is independent of the primary cluster and not visible from the primary cluster's Patroni interface.

Close #2090
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Michael Banck
2022-08-02 10:14:37 +02:00
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parent a8b73ef021
commit f65efecac9
1 changed files with 7 additions and 0 deletions
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docs/replica_bootstrap.rst
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@@ -187,6 +187,13 @@ Standby leader holds and updates a leader lock in DCS. If the leader lock
expires, cascade replicas will perform an election to choose another leader
from the standbys.
There is no further relationship between the standby cluster and the primary
cluster it replicates from, in particular, they must not share the same DCS
scope if they use the same DCS. They do not know anything else from each other
apart from replication information. Also, the standby cluster is not being
displayed in ``patronictl list`` or ``patronictl topology`` output on the
primary cluster.
For the sake of flexibility, you can specify methods of creating a replica and
recovery WAL records when a cluster is in the "standby mode" by providing
`create_replica_methods` key in `standby_cluster` section. It is distinct from