Unable to submit operation – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Check-Up which can resolve issues that cause many errors.

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

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “Unable to submit operation”classname  is AutodetectWorkerExecutorService.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 boolean added = queue.offer(contextHolder.preserveContext(command));
 if (added == false) {
 throw new ElasticsearchStatusException("Unable to submit operation"; RestStatus.TOO_MANY_REQUESTS);
 void start() {
 try {


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