MongoDB Deep Dive In the Config Database (Shardings)

在MongoDB中,我们知道分片集群可以跨分片迁移块,还可以路由查询。但是,这些信息存储在哪里,MongoDB如何使用它来维护整个分片集群的一致性?
在本次网络研讨会中,我们将详细查看配置数据库以及相关的元数据。
注册并加入我们,深入研究MongoDB配置数据库。

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2.Who is Vinodh Krish! ◆ ◆ ◆ ◆ ◆ “Guruji” - who shares knowledge ◆ Now here I am - Perconian!!!

3.Who is Adamo! ◆ Senior Support Engineer ◆ São Paulo / Brazil ◆ @adamotonete

4.Agenda ▪ ▪

5.Agenda ▪ ▪ ▪ ▪

6.Sharded Cluster

7.Sharded Cluster

8.Sharded Cluster - Manage things ▪ ▪ ▪ ▪ ▪

9.Sharded Cluster - metadata ▪ ▪

10.Sharded Cluster - Config ▪

11.Sharded Cluster - mongos ▪ ▪ ▪ ▪

12.Sharded Cluster - mongos ▪ ▪ ▪

13.Sharded Cluster - mongos ▪ ▪ ▪ ▪ ▪

14.Config database - dive in

15.Config database - Test Cluster ▪

16.Config database - Test Cluster ▪ mongos> db.version() 3.6.11-3.1 mongos> show dbs admin 0.000GB config 0.002GB vinodh 0.004GB mongos> use vinodh switched to db vinodh mongos> show collections testData testData2

17.Config database - actionlog ▪

18.Config database - changelog ▪ ▪ ▪ ▪

19.Config database - changelog

20.Config database - chunks ▪ ▪ ▪

21.Config database - chunks

22.Config database - collections

23.Config database - databases ▪ ▪

24.Config database - databases ▪

25.Config database - lockpings ▪

26.Config database - locks ▪ ▪ ▪ ▪ ▪

27.Config database - locks

28.Config database - migrations

29.Config database - mongos ▪