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[Lock] #37139 Updated Lock MongoDbStore note on readPreference #13775

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javiereguiluz merged 1 commit into from
Jan 27, 2021
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[Lock] #37139 Updated Lock MongoDbStore note on readPreference #13775

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7 changes: 4 additions & 3 deletions components/lock.rst
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Expand Up @@ -647,9 +647,10 @@ about `Expire Data from Collections by Setting TTL`_ in MongoDB.
locks don't expire prematurely; the lock TTL should be set with enough extra
time in ``expireAfterSeconds`` to account for any clock drift between nodes.

``writeConcern``, ``readConcern`` and ``readPreference`` are not specified by
MongoDbStore meaning the collection's settings will take effect. Read more
about `Replica Set Read and Write Semantics`_ in MongoDB.
``writeConcern`` and ``readConcern`` are not specified by MongoDbStore meaning
the collection's settings will take effect.
``readPreference`` is ``primary`` for all queries.
Read more about `Replica Set Read and Write Semantics`_ in MongoDB.

PdoStore
~~~~~~~~~~
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