Source not found index id – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 8-8.9

Briefly, this error occurs when Elasticsearch tries to retrieve a document from an index using a specific ID, but the document or the index does not exist. To resolve this issue, you can verify the existence of the index and the document ID. Ensure that the index name and document ID are spelled correctly and they exist in your Elasticsearch cluster. If the index or document doesn’t exist, you need to create it before attempting to retrieve it.

This guide will help you check for common problems that cause the log ” Source not found [” + index + “]/[” + id + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: rest, index, source, document.

Log Context

Log “Source not found [” + index + “]/[” + id + “]” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 final String id = response.getId();  if (response.isExists() == false) {
 throw new ResourceNotFoundException("Document not found [" + index + "]/[" + id + "]");
 } else if (response.isSourceEmpty()) {
 throw new ResourceNotFoundException("Source not found [" + index + "]/[" + id + "]");


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