Elasticsearch 7 and Elastic Stack - In Depth and Hands On! - Choosing the Right Number of Shards

The video tutorial discusses the importance of choosing the right number of primary and replica shards in Elasticsearch. It covers the concepts of fault tolerance, read capacity, and the challenges of scaling write requests. The tutorial emphasizes the need for experimentation and testing to determine the optimal shard allocation for an index, considering factors like data nature, application requirements, and projected growth. It also highlights the ability to add replica shards without reindexing, providing flexibility in handling increased read requests.

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