Elasticsearch 7 and Elastic Stack - In Depth and Hands On! - Index Lifecycle Management

The video tutorial introduces Index Lifecycle Management, a feature that allows control over how indices are managed as they age by assigning lifecycle policies. It explains the four stages of an index's lifecycle: hot, warm, cold, and delete, and how policies can be defined for each stage. The tutorial also covers how to apply these policies to actual indices using index templates and aliases, ensuring efficient data management and scalability in production settings.

What is the primary purpose of Index Lifecycle Management?

• To manage user access to indices

• To control how indices are handled as they age

• To encrypt indices for security

• To improve the visual appearance of indices

Which stage of the index lifecycle is characterized by infrequent queries and no updates?

• Hot

• Warm

• Cold

• Delete

In the given lifecycle policy example, what triggers the transition from the hot stage to the delete stage?

• Index reaching 100 gigabytes in size

• Index being 60 days old

• Index being accessed frequently

• Index reaching 50 gigabytes in size or 30 days in age

How long does an index remain in the delete stage before being deleted in the example policy?

• 60 days

• 120 days

• 30 days

• 90 days

What is the role of an alias in the context of index lifecycle management?

• To encrypt the index data

• To define the rollover action in a policy

• To manage user permissions

• To improve index search speed