Unknown strategy ” + strategyName + ” – How to solve this Elasticsearch error

Unknown strategy ” + strategyName + ” – 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 ” Unknown strategy ” + strategyName + ” ” 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: query and index.

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”Unknown strategy [” + strategyName + ” ]”classname  is GeoShapeQueryBuilder.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

return true;
  } else if (STRATEGY_FIELD.match(parser.currentName(); parser.getDeprecationHandler())) {
  String strategyName = parser.text();
  strategy = SpatialStrategy.fromString(strategyName);
  if (strategy == null) {
  throw new ParsingException(parser.getTokenLocation(); "Unknown strategy [" + strategyName + " ]");
  } else {
  this.strategy = strategy;
  return true;


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

Analyze your cluster