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Briefly, this error occurs when the “expand_wildcards” parameter in an Elasticsearch request is parsed more than once. This could be due to a bug in the code or a misconfiguration in the request. To resolve this issue, you can check the request to ensure that the “expand_wildcards” parameter is only included once. Also, ensure that the parameter is correctly formatted. If the error persists, you may need to debug your code to identify where the parameter is being parsed multiple times and correct it.
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This guide will help you check for common problems that cause the log ” already parsed expand_wildcards ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .
Log Context
Log “already parsed expand_wildcards” class name is IndicesOptions.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
"expected values within array for " + EXPAND_WILDCARDS_FIELD.getPreferredName()
);
}
}
} else {
throw new ElasticsearchParseException("already parsed expand_wildcards");
}
} else {
throw new ElasticsearchParseException(
EXPAND_WILDCARDS_FIELD.getPreferredName() + " is the only field that is an array in IndicesOptions"
);
