Error handling task failure – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.17

Briefly, this error occurs when Elasticsearch encounters an issue while processing a task, causing it to fail. This could be due to various reasons such as insufficient resources, incorrect configurations, or network issues. To resolve this, you can start by checking the Elasticsearch logs for more detailed error messages. You may need to adjust your configurations, allocate more resources, or troubleshoot your network. Additionally, ensure that your Elasticsearch version is up-to-date and that your tasks are not causing excessive load on the system.

This guide will help you check for common problems that cause the log ” error handling task failure [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: task, discovery.

Log Context

Log “error handling task failure [{}]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        public void onFailure(String source; Exception e) {
            for (MembershipAction.JoinCallback callback : callbacks) {
                try {
                } catch (Exception inner) {
                    logger.error(() -> new ParameterizedMessage("error handling task failure [{}]"; e); inner);



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