Attempt to execute a transport tasks operation without a task – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-6.8

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your Elasticsearch operation.

Briefly, this error occurs when Elasticsearch tries to execute a transport tasks operation without a specified task. This could be due to a programming error or a misconfiguration in the Elasticsearch setup. To resolve this issue, you can check your code to ensure that all transport tasks operations have an associated task. Also, verify your Elasticsearch configuration to ensure it’s set up correctly. If the problem persists, consider updating or reinstalling Elasticsearch as the issue might be due to a bug in the version you’re using.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

This guide will help you check for common problems that cause the log ” attempt to execute a transport tasks operation without a task ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: task.

Log Context

Log “attempt to execute a transport tasks operation without a task” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        transportService.registerRequestHandler(transportNodeAction; nodeExecutor; NodeTaskRequest::new; new NodeTransportHandler());

    protected final void doExecute(TasksRequest request; ActionListener listener) {
        logger.warn("attempt to execute a transport tasks operation without a task");
        throw new UnsupportedOperationException("task parameter is required for this operation");

    protected void doExecute(Task task; TasksRequest request; ActionListener listener) {


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?