Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.
To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.
This guide will help you check for common problems that cause the log ” failed to parse multi get request. unknown field ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: request.
Log Context
Log “failed to parse multi get request. unknown field [{}]”classname is MultiGetRequest.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :
new String[]{parser.text()}; fetchSourceContext.excludes());
} else {
throw new ElasticsearchParseException("illegal type for _source: [{}]"; token);
}
} else {
throw new ElasticsearchParseException("failed to parse multi get request. unknown field [{}]"; currentFieldName);
}
} else if (token == Token.START_ARRAY) {
if (FIELDS.match(currentFieldName; parser.getDeprecationHandler())) {
throw new ParsingException(parser.getTokenLocation();
"Unsupported field [fields] used; expected [stored_fields] instead");
See how you can use AutoOps to resolve issues
