Unexpected error creating default query - Common causes and quick fixes

Unexpected error creating default query – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-6.8

Briefly, this error occurs when Elasticsearch fails to create a default query due to incorrect or incompatible query syntax, or due to a problem with the underlying data structure. To resolve this issue, you can try the following: 1) Check and correct the query syntax; 2) Ensure that the fields you’re querying exist and are correctly mapped in the index; 3) Check the Elasticsearch version compatibility with your query; 4) If the problem persists, consider reindexing your data to fix potential underlying data structure issues.

This guide will help you check for common problems that cause the log ” Unexpected error creating default query ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, query.

Log Context

Log “Unexpected error creating default query” class name is QueryProvider.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 QueryBuilder parsedQuery = QueryBuilders.matchAllQuery();
 Map query = XContentObjectTransformer.queryBuilderTransformer(NamedXContentRegistry.EMPTY).toMap(parsedQuery);
 return new QueryProvider(query; parsedQuery; null);
 } catch (IOException ex) {
 logger.error("Unexpected error creating default query"; ex);
 throw new ElasticsearchException("Unexpected error creating default query"; ex);
 }
 }  static QueryProvider fromXContent(XContentParser parser; boolean lenient) throws IOException {
 Map query = parser.mapOrdered();

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