Invalid package size – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 8.8-8.9

Briefly, this error occurs when Elasticsearch receives a data package that exceeds the maximum allowed size. This could be due to a large document or a bulk request. To resolve this issue, you can either increase the maximum allowed package size in the Elasticsearch configuration or reduce the size of the data being sent. If you’re sending bulk requests, consider breaking them down into smaller chunks. If it’s a large document causing the issue, you may need to restructure your data to reduce its size.

This guide will help you check for common problems that cause the log ” Invalid package size ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “Invalid package size” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 listener.onFailure(new ElasticsearchStatusException("Invalid package"; RestStatus.INTERNAL_SERVER_ERROR));
 }  if (packageConfig.getSize() <= 0) {
 listener.onFailure(new ElasticsearchStatusException("Invalid package size"; RestStatus.INTERNAL_SERVER_ERROR));
 }  if (Strings.isNullOrEmpty(packageConfig.getSha256()) || packageConfig.getSha256().length() != 64) {
 listener.onFailure(new ElasticsearchStatusException("Invalid package sha"; RestStatus.INTERNAL_SERVER_ERROR));


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