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* DOCSP-33284 Fix Compact Behavior Notes * * * * * * * * * * * * * *
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source/reference/command/compact.txt

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@@ -196,7 +196,6 @@ replica set, however there are some important considerations:
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- The primary node does not replicate the ``compact`` command to the
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secondaries.
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- The ``compact`` command blocks writes while it runs.
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- You should run ``compact`` on secondary nodes whenever possible. If
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you cannot run ``compact`` on secondaries, see the :ref:`force
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<compact-force-option>` option.
@@ -245,17 +244,21 @@ Blocking behavior on secondary nodes is version specific.
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- Secondary node is in :replstate:`RECOVERING` state.
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* - 4.4
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- - ``compact`` blocks all write activity.
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- No replication possible.
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- Reads not permitted.
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- - No replication is possible.
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- Reads are not permitted.
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* - Post 4.4.17
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- - ``compact`` blocks all write activity.
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- A secondary node can replicate while ``compact`` is running.
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- - A secondary node can replicate while ``compact`` is running.
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- Reads permitted.
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When ``compact`` completes, the secondary returns to the
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:replstate:`SECONDARY` state.
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Replication status while the ``compact`` command is running depends on
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your specific MongoDB version:
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- In MongoDB versions ``4.4.9`` and later, the replica set remains in a
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:replstate:`SECONDARY` status.
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- In MongoDB versions earlier than ``4.4.9``, ``compact`` forces
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the replica set into the :replstate:`RECOVERING` status.
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For more information about replica set member states, see
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See :ref:`replica-set-member-states`.

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