Failed to run – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.17

Briefly, this error occurs when Elasticsearch is unable to execute a specific operation due to various reasons such as insufficient resources, incorrect configurations, or network issues. To resolve this, you can check the Elasticsearch logs for more detailed error messages. Ensure that the Elasticsearch cluster has enough resources (CPU, memory, disk space). Verify the configurations are correct and the network connectivity is stable. If the error is related to a specific query, you may need to optimize it. Also, ensure that the version of Elasticsearch you are using is compatible with your operations.

This guide will help you check for common problems that cause the log ” failed to run {} ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: threadpool.

Log Context

Log “failed to run {}” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        public void run() {
            try {
            } catch (Exception e) {
                logger.warn(() -> new ParameterizedMessage("failed to run {}"; runnable.toString()); e);
                throw e;



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