5 boring performance improvements in MongoDB 3.4 that matter / Henrik Ingo (MongoDB)

Опубликовано 16 августа 2018, 11:37

Приглашаем на конференцию HighLoad++ 2024, которая пройдет 2 и 3 декабря в Москве!
Программа, подробности и билеты по ссылке: clck.ru/3DD4yb
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HighLoad++ 2017

Тезисы:
highload.ru/2017/abstracts/292...

I will talk about performance improvements to MongoDB replication and sharding whose development I have been involved in. These under-the-hood improvements make a difference to users that have terabytes of data and possibly also lots of shards.
I'll cover the following improvements in MongoDB 3.4:
- Order of magnitude faster initial sync for replicas by building indexes in parallel
- Removing throttling from migrations (re-balancing) between shards
- Allowing parallel migrations between shards
- Moving the balancer process from the mongos servers to the primary config server (a singleton)
- Wire Protocol Compression to speed up replication in geographically distributed clusters
- Future improvements to expect


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