Meta can t have more than 5 entries but got meta size on field – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.6-7.15

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Briefly, this error occurs when the number of metadata entries for a field in Elasticsearch exceeds the limit of 5. This could be due to an incorrect configuration or excessive metadata. To resolve this issue, you can reduce the number of metadata entries for the field to 5 or less. Alternatively, you can reconfigure your Elasticsearch setup to better distribute the metadata across different fields or indices. Lastly, consider reviewing your data structure to ensure it aligns with Elasticsearch’s best practices.

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This guide will help you check for common problems that cause the log ” [meta] can’t have more than 5 entries; but got ” + meta.size() + ” on field [ ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index.

Log Context

Log “[meta] can’t have more than 5 entries; but got ” + meta.size() + ” on field [” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 "[" + metaObject + "] for field [" + name + "]");
 Map meta = (Map) metaObject;
 if (meta.size() > 5) {
 throw new MapperParsingException("[meta] can't have more than 5 entries; but got " + meta.size() + " on field [" +
 name + "]");
 for (String key : meta.keySet()) {
 if (key.codePointCount(0; key.length()) > 20) {
 throw new MapperParsingException("[meta] keys can't be longer than 20 chars; but got [" + key +


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