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c0c6a28e86
This change adds a section about the global search setting `indices.query.bool.max_clause_count` that limits the number of boolean clauses allowed in a Lucene BooleanQuery. Closes #19858
17 lines
810 B
Plaintext
17 lines
810 B
Plaintext
[[search-settings]]
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=== Search Settings
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The following _expert_ setting can be set to manage global search limits.
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`indices.query.bool.max_clause_count`::
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Defaults to `1024`.
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This setting limits the number of clauses a Lucene BooleanQuery can have. The
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default of 1024 is quite high and should normally be sufficient. This limit does
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not only affect Elasticsearchs `bool` query, but many other queries are rewritten to Lucene's
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BooleanQuery internally. The limit is in place to prevent searches from becoming to large
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and taking up too much CPU and memory. In case you consider to increase this setting,
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make sure you exhausted all other options to avoid having to do this. Higher values can lead
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to performance degradations and memory issues, especially in clusters with a high load or
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few resources.
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