RethinkDB 2.2: atomic changefeeds, parallel scans, improved runtime

Re:RethinkDB 2.2: atomic changefeeds, parallel scans, improv... by Scarbutt on Thursday November 12, 2015 @05:28PM (#10556615)

From the FAQ:

We recommend RethinkDB servers have at least 2GB of RAM

Why does it needs so much memory?

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Re:RethinkDB 2.2: atomic changefeeds, parallel scans, improv... by antirez on Thursday November 12, 2015 @05:44PM (#10556717)

Makes sense to reduce disk accesses but maybe there are fixed data structures allocated? Since otherwise they should advice a given percentage of memory compared to dataset size instead of a fixed amount.

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Re:RethinkDB 2.2: atomic changefeeds, parallel scans, improv... by mglukhovsky on Thursday November 12, 2015 @06:37PM (#10556985)

You may find this article helpful: http://rethinkdb.com/docs/memory-usage/

The article describes how RethinkDB uses memory to reduce disk access and process queries, as well as how to reduce its memory usage with `--cache-size`.

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Re:RethinkDB 2.2: atomic changefeeds, parallel scans, improv... by assface on Thursday November 12, 2015 @05:35PM (#10556654)

Because it's 2015.

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Re:RethinkDB 2.2: atomic changefeeds, parallel scans, improv... by jmakeig on Thursday November 12, 2015 @05:36PM (#10556662)

And it’s a database with indexes and caches.

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