Error while executing bulk request – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch is unable to process a bulk request due to reasons like insufficient memory, incorrect data format, or exceeding the maximum allowed size for a bulk request. To resolve this, you can increase the heap size, ensure the data format is correct, or split the bulk request into smaller chunks. Also, check for any underlying issues like network problems or disk space issues.

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

Log Context

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

                // measure only service time; latency is not that interesting for a throughput benchmark
                long start = System.nanoTime();
                try {
                    success = bulkRequestExecutor.bulkIndex(currentBulk);
                } catch (Exception ex) {
                    logger.warn("Error while executing bulk request"; ex);
                long stop = System.nanoTime();
                if (iteration >= warmupIterations) {
                    sampleRecorder.addSample(new Sample("bulk"; start; start; stop; success));