Questions
14 of 15
1What is sharding in MongoDB?
2Discuss Vertical and Horizontal scaling?
3What are the components of a sharded cluster?
4What is a shard key?
5What are advantages of Sharding?
6What is Shard?
7What are different sharding strategies?
8How to shard a collection?
9What are zones in sharding?
10What is primary shard?
11How do we chose a shard key?
12What is refining a shard key and how to do it?
13How to reshard a collection?
14How to find a shard key?
15Is it possible to change a document's shard key value and how?
MongoDBMongoDB
Basics
CRUD
Bulk Operations
Indexing
Data Modelling
Replication
Sharding
Transactions
Aggregation
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How to find a shard key?

Every shared collection has a shard key.

  1. 1

    connect to a mongos instance and run the db.printShardingStatus() method

  2. 2

    connect to a mongos instance and run the sh.status()