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A comment on Ask HN: Do you find working on large distributed systems exhausting?. Parent comment

Re:Ask HN: Do you find working on large distributed systems ... by jd_mongodb on Monday February 21, 2022 @08:14AM (#30415531)
MongoDB uses the Wired Tiger storage engine internally. The MMAP storage engine was removed from MongoDB in V4.2 which was released in March 2020. The MMAP engine was deprecated two years previously.

In MongoDB conversion to and from raw JSON into BSON (Binary JSON) is done on the client (aka driver) so the server cycles are not consumed.

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