Articles By Shane Connelly

13 June 2018 Releases

Elasticsearch 6.3.0 Released

By Shane Connelly

Today we are pleased to announce the release of Elasticsearch 6.3.0, based on Lucene 7.3.0.

19 April 2018 Engineering

Practical BM25 - Part 1: How Shards Affect Relevance Scoring in Elasticsearch

By Shane Connelly

Find out how similarity ranking (relevancy) is impacted in Elasticsearch by the amount of shards in your index.

19 April 2018 Engineering

Practical BM25 - Part 2: The BM25 Algorithm and its Variables

By Shane Connelly

Learn more about how BM25 works by exploring the equation, variables, and concepts behind the default similarity ranking algorithm in Elasticsearch.

19 April 2018 Engineering

Practical BM25 - Part 3: Considerations for Picking b and k1 in Elasticsearch

By Shane Connelly

While there are no "best values" for b and k1, there are best practices and research data that should be considered before tuning these BM25 components.

06 February 2018 Releases

Elasticsearch 6.2.0 released

By Shane ConnellyJason Zucchetto

Today we are pleased to announce the release of Elasticsearch 6.2.0, based on Lucene 7.2.1.

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10 August 2017 Engineering

Sequence IDs: Coming Soon to an Elasticsearch Cluster Near You

By Shane ConnellyBoaz Leskes

Read about what sequence numbers get you in Elasticsearch 6.0 and beyond

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22 May 2017 Engineering

Indices, types, and parent / child: current status and upcoming changes in Elasticsearch

By Shane ConnellyPhilipp Krenn

What are types and what are indices / indexes? In this post we cover the current status and the futures.