The max_clause_count setting is not documented

[dawi]

The max_clause_count option is not documented in the reference documentation.

It seems that it was documented once (#482 (comment)):

in the elasticsearch configuration file (the yml file for example), set the mentioned setting. See more here: http://www.elasticsearch.com/docs/elasticsearch/setup/configuration/#Settings.

[biinari]

The only place I can find it mentioned is in the 5.0 breaking settings changes

Some mention would be useful along with a little background on reasons for keeping it low and how high it might be reasonable to set it in particular circumstances. It looks like the default value is 1024.

I have found some answers in discussion fora that recommend against increasing this limit, in favour of changing the query usage to avoid high numbers of clauses:

• https://discuss.elastic.co/t/how-to-set-index-query-bool-max-clause-count/32264/3 (and further responses from Elastic Cloud Engineers in same discussion)
• http://stackoverflow.com/a/9808839/839209

[kunisen]

any updates here?

[elasticmachine]

Pinging @elastic/es-search-aggs