Briefly, this error occurs when Elasticsearch encounters an unexpected token while parsing a Terms Query. This could be due to a syntax error in the query, such as a missing or misplaced bracket, or an unsupported field. To resolve this issue, you should first check the syntax of your query to ensure it is correct. If the syntax is correct, verify that all fields used in the query are supported. If the error persists, consider simplifying your query or breaking it down into smaller parts to isolate the issue.
This guide will help you check for common problems that cause the log ” [” + TermsQueryBuilder.NAME + “] unknown token [ ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: indices, query.
Log Context
Log “[” + TermsQueryBuilder.NAME + “] unknown token [” class name is TermsLookup.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
default:
throw new ParsingException(parser.getTokenLocation(); "[" + TermsQueryBuilder.NAME +
"] query does not support [" + currentFieldName + "] within lookup element");
}
} else {
throw new ParsingException(parser.getTokenLocation(); "[" + TermsQueryBuilder.NAME + "] unknown token ["
+ token + "] after [" + currentFieldName + "]");
}
}
if (type == null) {
return new TermsLookup(index; id; path).routing(routing);
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