Missing value for field ” + field + ” – How to solve this Elasticsearch error

Opster Team

March-22, Version: 1.7-8.0

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.

Briefly, this error occurs when a field that is expected to have a value is missing that value. This can occur when the field is not present in the document or is present but has no value assigned to it. To resolve the issue, ensure that the document has a value assigned to the missing field.

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.

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This guide will help you check for common problems that cause the log ” Missing value for field ” + field + ” ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: search, lucene.

Log Context

Log “Missing value for field [” + field + “]”classname  is FieldValueFactorFunction.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

value = values.nextValue();
 } else {
 if (missing != null) {
 value = missing;
 } else {
 throw new ElasticsearchException("Missing value for field [" + field + "]");
 double val = value * boostFactor;
 double result = modifier.apply(val);
 if (result < 0f) {


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