Failed to bind to port getPortRangeString – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.6

Briefly, this error occurs when Elasticsearch fails to bind to the specified port range during startup. This could be due to the port being already in use, insufficient permissions, or network restrictions. 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. 2) Run Elasticsearch with a user that has sufficient permissions. 3) Check your network settings and firewall rules to ensure they are not blocking the port.

This guide will help you check for common problems that cause the log ” Failed to bind to [” + port.getPortRangeString() + “] ” 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 [” + port.getPortRangeString() + “]” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

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


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