Failed to create the health node task – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.4-8.9

Briefly, this error occurs when Elasticsearch is unable to create a health node task due to issues like insufficient resources, network connectivity problems, or incorrect configurations. To resolve this, you can try increasing system resources, checking network connections, or reviewing and correcting Elasticsearch configurations. Also, ensure that the Elasticsearch cluster is not in a red state, as this could prevent the creation of new tasks. Lastly, check for any underlying system issues that might be causing this error.

This guide will help you check for common problems that cause the log ” Failed to create the health node task ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: task, node.

Log Context

Log “Failed to create the health node task” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                    new HealthNodeTaskParams();
                    ActionListener.wrap(r -> logger.debug("Created the health node task"); e -> {
                        Throwable t = e instanceof RemoteTransportException ? e.getCause() : e;
                        if (t instanceof ResourceAlreadyExistsException == false) {
                            logger.error("Failed to create the health node task"; e);
                            if (enabled) {