_mtermvectors: Parameter not supported – How to solve this Elasticsearch error

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_mtermvectors: Parameter not supported – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” _mtermvectors: Parameter not supported ” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: Node.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them (free tool that requires no installation).

Log Context

Log”_mtermvectors: Parameter [{}] not supported”classname  is MultiTermVectorsRequest.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

TermVectorsRequest.parseRequest(template; parser);
  } else {
  throw new ElasticsearchParseException("no parameter named [{}] and type OBJECT"; currentFieldName);
  } else if (currentFieldName != null) {
  throw new ElasticsearchParseException("_mtermvectors: Parameter [{}] not supported"; currentFieldName);
  for (String id : ids) {
  TermVectorsRequest curRequest = new TermVectorsRequest(template);


Run the Check-Up to get a customized report like this:

Analyze your cluster