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DOCS-13741 add warning to ttlMonitorEnabled param #4867

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Feb 3, 2021
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DOCS-13741 add warning to ttlMonitorEnabled param #4867

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10 changes: 10 additions & 0 deletions source/reference/parameters.txt
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Expand Up @@ -1059,6 +1059,8 @@ General Parameters

|mongod-only|

*Default*: ``true``

To support :doc:`TTL Indexes </core/index-ttl>`, :binary:`~bin.mongod`
instances have a background thread that is responsible for deleting
documents from collections with TTL indexes.
Expand All @@ -1078,6 +1080,14 @@ General Parameters

mongod --setParameter ttlMonitorEnabled=false

.. important::

Do not run production :binary:`~bin.mongod` instances with
``ttlMonitorEnabled`` disabled, except under guidance from MongoDB
support. Preventing TTL document removal can negatively impact
MongoDB internal system operations that depend on
:doc:`TTL Indexes </core/index-ttl>`.

.. parameter:: tcpFastOpenServer

.. versionadded:: 4.4
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