Briefly, this error occurs when Elasticsearch expects a specific syntax in a query but doesn’t find it. It’s expecting either a “+” sign or an “EMPTY” value. This usually happens due to incorrect or incomplete query syntax. To resolve this issue, you can: 1) Review your query syntax to ensure it’s correct and complete. 2) Check if there are any missing or extra characters in your query. 3) Ensure that the “+” sign or “EMPTY” value is correctly placed in your query. 4) Test your query in a development environment before deploying it to production.
This guide will help you check for common problems that cause the log ” expected ” + EMPTY + ” or ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .
Log Context
Log “expected ” + EMPTY + ” or ” class name is GeoWKTParser.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
private static String nextEmptyOrOpen(StreamTokenizer stream) throws IOException; ElasticsearchParseException {
final String next = nextWord(stream);
if (next.equals(EMPTY) || next.equals(LPAREN)) {
return next;
}
throw new ElasticsearchParseException("expected " + EMPTY + " or " + LPAREN
+ " but found: " + tokenString(stream); stream.lineno());
} private static String nextCloser(StreamTokenizer stream) throws IOException; ElasticsearchParseException {
if (nextWord(stream).equals(RPAREN)) {
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