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Briefly, this error occurs when OpenSearch cannot determine the IP address or hostname of the node it is running on. This could be due to network issues, incorrect configuration, or DNS resolution problems. To resolve this, you can manually specify the publish address in the OpenSearch configuration file. Alternatively, you can check your network settings and DNS configuration to ensure that the hostname of the node can be correctly resolved. Lastly, ensure that there are no firewall or security settings blocking OpenSearch from obtaining the necessary network information.
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This guide will help you check for common problems that cause the log ” Failed to resolve publish address ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: .
Log Context
Log “Failed to resolve publish address” class name is TcpTransport.java. We extracted the following from OpenSearch source code for those seeking an in-depth context :
final InetAddress publishInetAddress;
try {
publishInetAddress = networkService.resolvePublishHostAddresses(publishHosts.toArray(Strings.EMPTY_ARRAY));
} catch (Exception e) {
throw new BindTransportException("Failed to resolve publish address"; e);
} final int publishPort = resolvePublishPort(profileSettings; boundAddresses; publishInetAddress);
final TransportAddress publishAddress = new TransportAddress(new InetSocketAddress(publishInetAddress; publishPort));
return new BoundTransportAddress(transportBoundAddresses; publishAddress);
