Cannot use expression with text variable using – How to solve this Elasticsearch error

Cannot use expression with text variable using – 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 ” Cannot use expression with text variable using ” 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”Cannot use expression with text variable using”classname  is ExpressionAggregationScript.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

// _value isn't used in script if specialValue == null
  if (specialValue != null) {
  if (value instanceof Number) {
  specialValue.setValue(((Number)value).doubleValue());
  } else {
  throw new GeneralScriptException("Cannot use expression with text variable using " + exprScript);
  }
  }
  }
  };
  }

 

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

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