Failed send ping to – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.17

Briefly, this error occurs when Elasticsearch nodes in a cluster fail to communicate with each other. This could be due to network issues, firewall blocking the communication, or the node being down. To resolve this, ensure all nodes are up and running, check network connectivity between nodes, and verify that firewall rules are not blocking the required ports. Also, check the Elasticsearch configuration files for any misconfigurations.

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

Log Context

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

                        () -> new ParameterizedMessage("[{}] received a remote error as a response to ping {}";; node);
                } else {
                    logger.warn(() -> new ParameterizedMessage("[{}] failed send ping to {}";; node); e);

            public void onRejection(Exception e) {


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