Error executing bulk – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch is unable to execute bulk operations due to reasons like insufficient memory, incorrect data format, or a network issue. To resolve this, you can increase the JVM heap size to provide more memory, ensure the data being indexed is in the correct format, or check your network connectivity. Also, consider breaking down your bulk request into smaller chunks to reduce the load on the server.

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

Log Context

Log “error executing bulk” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :


            public void afterBulk(long executionId; BulkRequest request; Exception failure) {
                logger.error("error executing bulk"; failure);
        }; client.threadPool())


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