确定删除吗？
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 ▪
