Elasticsearch 7 and Elastic Stack - In Depth and Hands On! - Adding Indices as a Scaling Strategy

The video tutorial explains how to create an index in a database, focusing on specifying the number of shards and replicas. It discusses the importance of planning for future scalability and introduces index templates for automating settings. The tutorial includes a hands-on demonstration using Kibana to create a new index with specific settings, emphasizing the flexibility of shard allocation and the need for foresight in capacity planning.

What does setting the number of replicas to one imply for each primary shard?

• The number of primary shards will double.

• Each primary shard will have one replica shard.

• There will be no replica shards.

• Each primary shard will have two replica shards.

Why is it important to create new indices with the correct number of shards before inserting data?

• To ensure data is stored in alphabetical order.

• To optimize for future scaling and performance needs.

• To prevent data from being deleted.

• To make the index read-only.

What is the purpose of using index templates?

• To create indices with zero shards.

• To delete old indices.

• To convert indices into tables.

• To automatically apply settings to new indices.

In Kibana, what is the benefit of using the dev tools icon for index creation?

• It allows for automatic data backup.

• It encrypts all index data.

• It doubles the number of shards automatically.

• It provides a user-friendly interface for creating indices.

What flexibility does having multiple shards on one machine provide?

• It enables future scalability without additional hosts.

• It allows for data encryption.

• It automatically increases the index size.

• It reduces the number of replicas needed.