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Mastering MongoDB 3.x

You're reading from   Mastering MongoDB 3.x An expert's guide to building fault-tolerant MongoDB applications

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Product type Paperback
Published in Nov 2017
Publisher Packt
ISBN-13 9781783982608
Length 342 pages
Edition 1st Edition
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Author (1):
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Alex Giamas Alex Giamas
Author Profile Icon Alex Giamas
Alex Giamas
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Toc

Sharding recovery

In this section, we will explore different failure types and how we can recover in a sharded environment.

Mongos

mongos is a relatively lightweight process that holds no state. In the case that the process fails we can just restart it or spin up a new process in a different server. It's recommended that mongos processes co-locate in the same server as our application and so it makes sense to connect from our application using the set of mongos servers that we have co-located in our application servers to ensure high availability of mongos processes.

Mongod process

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