Briefly, this error occurs when the transport method specified in the Elasticsearch configuration is overridden by another setting. This could be due to a conflict in the configuration files or an incorrect setting. To resolve this issue, you can check the Elasticsearch configuration files for any conflicting settings and correct them. Alternatively, you can specify the correct transport method in the Elasticsearch settings. If the error persists, consider resetting the configuration to its default settings and reconfiguring it.
This guide will help you check for common problems that cause the log ” Using [{}] as transport; overridden by [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: transport.
Log Context
Log “Using [{}] as transport; overridden by [{}]” classname is TransportModule.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
}
}
bind(NamedWriteableRegistry.class).toInstance(namedWriteableRegistry);
if (configuredTransport != null) {
logger.info("Using [{}] as transport; overridden by [{}]"; configuredTransport.getName(); configuredTransportSource);
bind(Transport.class).to(configuredTransport).asEagerSingleton();
} else {
String defaultType = DiscoveryNode.localNode(settings) ? LOCAL_TRANSPORT : NETTY_TRANSPORT;
String typeName = settings.get(TRANSPORT_TYPE_KEY; defaultType);
Class extends Transport> clazz = transports.get(typeName);
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