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pruner + docs: less confusing type names, some comments, better docs for keep: not_replicated

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fixes https://github.com/zrepl/zrepl/issues/524
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Christian Schwarz
2021-10-10 21:11:38 +02:00
parent 5104ad3d0b
commit 1f0f2f8569
3 changed files with 24 additions and 15 deletions
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docs/configuration/prune.rst
+3 -2
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@@ -67,8 +67,9 @@ Policy ``not_replicated``
...
``not_replicated`` keeps all snapshots that have not been replicated to the receiving side.
It only makes sense to specify this rule on a sender (source or push job).
The state required to evaluate this rule is stored in the :ref:`replication cursor bookmark <replication-cursor-and-last-received-hold>` on the sending side.
It only makes sense to specify this rule for the ``keep_sender``.
The reason is that, by definition, all snapshots on the receiver have already been replicated to there from the sender.
To determine whether a sender-side snapshot has already been replicated, zrepl uses the :ref:`replication cursor bookmark <replication-cursor-and-last-received-hold>` which corresponds to the most recent successfully replicated snapshot.
.. _prune-keep-retention-grid: