Elasticsearch - Performance and ScalingWhich cache in Elasticsearch stores the results of frequently run queries to speed up repeated searches?AFielddata cacheBShard cacheCRequest cacheDQuery cacheCheck Answer
Step-by-Step SolutionSolution:Step 1: Identify cache types and their purposesThe query cache stores the results of frequently run queries to avoid re-executing them and speed up repeated searches.Step 2: Differentiate from other cachesFielddata cache is for sorting/aggregations, request cache caches entire request results, shard cache is not a standard Elasticsearch cache term.Final Answer:Query cache -> Option DQuick Check:Query cache = stores frequent query results [OK]Quick Trick: Query cache speeds up repeated queries by storing results [OK]Common Mistakes:MISTAKESMixing query cache with fielddata cacheConfusing request cache with query cacheAssuming shard cache is a valid cache type
Master "Performance and Scaling" in Elasticsearch9 interactive learning modes - each teaches the same concept differentlyLearnWhyDeepVisualTryChallengeProjectRecallTime
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