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Evolving Search
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Agenda
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Introduction
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Kau and e-commerce
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About me
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Questions?
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Questions?
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Architecture
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Architecture BigQuery Kafka Indexer Elasticsearch Searcher Monolith reads reads reads writes reads
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Architecture
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Architecture
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Searches
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Phase: Analysis { "title": "Modernes Wandbild ... Kunstdruck New York", "search_stats": [ { "id_item": 306593629, "rank": 0.00012203718164007487, "term": "modernes wandbild new york" } ] }
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Phase: Analysis - Category Guessing
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Phase: Analysis - Shorter queries
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Phase: Search
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Search: FTS vs. signals
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Quiz: ← ←
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Running in production
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Cost reduction
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Journey to Elasticsearch 8
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Node caches lling up
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Node caches lling up
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Upgrade: Unreleased shard locks
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Performance
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Performance
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Less scripting esb .scriptScoreFunction( esb.script('source', "Math.sqrt(1+doc['rank'].value/10)"), ) esb .function(esb.fieldValueFactorFunction('rank').missing(1).weight(
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Unexpected refreshes
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Set
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Set
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Range query vs. term query { "term" : { "term_exact.token_count" : 2 } } { "range" : { "term_exact.token_count" : { "gte" : 2, "lte" : 2 } } }
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Range query vs. term query
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has no e ect
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Tracking total hits: weird behaviour
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Switching o a microservice
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Improving relevance
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Keyword search
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ELSER
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Query Processing Pipeline
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Query expansion
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Summary
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Upgrade!
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Summary
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Thank you
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One last thing
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Thank you