Failed to bind to – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.16-8.9

Briefly, this error occurs when Elasticsearch is unable to bind to the specified network address, usually due to the port being already in use or insufficient permissions. To resolve this issue, you can try the following: 1) Check if the port is already in use by another service and if so, change the port number in the Elasticsearch configuration. 2) Ensure Elasticsearch has the necessary permissions to bind to the network address. 3) If the address is incorrect or not available, correct it in the Elasticsearch configuration.

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

Log Context

Log “Failed to bind to” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 return false;
 return true;
 if (success == false) {
 throw new BindHttpException("Failed to bind to " + NetworkAddress.format(hostAddress; port); lastException.get());
 }  if (logger.isDebugEnabled()) {
 logger.debug("Bound http to address {{}}"; NetworkAddress.format(boundSocket.get()));


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