Elasticsearch - set max_clause_count

Question

I have a pretty big terms query in elasticsearch, so I get too_many_clauses: maxClauseCount is set to 1024

I tried increasing it in the elasticsearch.y

Answer 1

Background

NOTE: The advice given in this answer only applies to versions of Elasticsearch below 5.5. The method described references a property that was eventually removed in 5.5.

Search Settings

The setting index.query.bool.max_clause_count has been removed. In order to set the maximum number of boolean clauses indices.query.bool.max_clause_count should be used instead.

• Ref - Breaking changes in 5.0 » Settings changes

---

Original Answer

Add the following:

index.query.bool.max_clause_count: 10240

To the file elasticsearch.yml on each node of the cluster, then of course, restart the nodes (any change in the config file needs a restart).