Parent id mismatch document value is – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-6.8

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Briefly, this error occurs when the parent ID of a child document in Elasticsearch does not match the parent ID specified in the index request. This could be due to incorrect data entry or a bug in the code. To resolve this issue, you can verify the parent ID in the index request and ensure it matches the parent ID of the child document. Alternatively, you can re-index the child document with the correct parent ID. If the error persists, check your code for any bugs that might be causing the mismatch.

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This guide will help you check for common problems that cause the log ” Parent id mismatch; document value is [ ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index, document.

Log Context

Log “Parent id mismatch; document value is [” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 throw new MapperParsingException("No parent id provided; not within the document; and not externally");
 // we did not add it in the parsing phase; add it now
 fields.add(new SortedDocValuesField(; new BytesRef(parentId)));
 } else if (parentId != null && !parsedParentId.equals(Uid.createUid(parentType; parentId))) {
 throw new MapperParsingException("Parent id mismatch; document value is [" + Uid.createUid(parsedParentId).id()
 + "]; while external value is [" + parentId + "]");
 // we have parent mapping; yet no value was set; ignore it...


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