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DOCS-6850: update prod notes to mention WT is default for 3.2 #2485

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DOCS-6850: update prod notes to mention WT is default for 3.2 #2485

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8 changes: 6 additions & 2 deletions source/administration/production-notes.txt
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Expand Up @@ -67,12 +67,16 @@ limitations page <faq-32-bit-limitations>`
MongoDB ``dbPath``
------------------

.. versionchanged:: 3.2

As of MongoDB 3.2, MongoDB uses the :ref:`WiredTiger
<storage-wiredtiger>` storage engine by default.

.. versionchanged:: 3.0

MongoDB includes support for two storage engines: :ref:`MMAPv1
<storage-mmapv1>`, the storage engine available in previous versions
of MongoDB, and :ref:`WiredTiger <storage-wiredtiger>`. MongoDB uses
the MMAPv1 engine by default.
of MongoDB, and :ref:`WiredTiger <storage-wiredtiger>`.

The files in the :setting:`~storage.dbPath` directory must correspond
to the configured storage engine. :program:`mongod` will not start if
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