Elasticsearch - Index ManagementYou want to optimize an index for search speed and fault tolerance. Which setting combination is best if you have 3 data nodes?Anumber_of_shards: 3, number_of_replicas: 0Bnumber_of_shards: 1, number_of_replicas: 0Cnumber_of_shards: 3, number_of_replicas: 2Dnumber_of_shards: 5, number_of_replicas: 1Check Answer
Step-by-Step SolutionSolution:Step 1: Consider node count and replica distributionWith 3 nodes, setting replicas to 2 allows one primary and two replicas on separate nodes for fault tolerance.Step 2: Balance shards and replicas for speed and safety3 shards allow parallel search; 2 replicas ensure high availability.Final Answer:number_of_shards: 3, number_of_replicas: 2 -> Option CQuick Check:Replicas = nodes - 1 for max fault tolerance [OK]Quick Trick: Set replicas to nodes minus one for max safety [OK]Common Mistakes:MISTAKESSetting replicas to zero losing fault toleranceToo many shards causing overheadIgnoring node count for replicas
Master "Index Management" in Elasticsearch9 interactive learning modes - each teaches the same concept differentlyLearnWhyDeepVisualTryChallengeProjectRecallTime
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