Elasticsearch 5.2.2 cluster runs OutOfMemory when it gets query with many words

(Srinivasan Ramaswamy) #1

I have a 3 node elasticsearch cluster with version 5.2.2 and when i send a query that has >70 words, the cluster runs out of memory and crashes. Interestingly, when the number of words is 30+ I get an error message "too_many_clauses maxClauseCount is set to 1024". I am wondering why we dont get the same error message when the number of words is more than 70.

I am using a multi match query with 13 fields and a function score on top of that. Am I doing something wrong or is there a bug with ES 5.2.2?


(system) #2

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