New Solr Error Troubleshooting Guides: SAXParseException, NumberFormatException and More
Major documentation expansion across Solr error troubleshooting. New in-depth guides for Leader Not Available / Index Fetch Failed, SAXParseException, Missing SearchComponents, NumberFormatException, and ClassNotFoundException. Each guide covers root cause analysis, visual diagrams, and step-by-step fixes. All integrated with the Error Audit for automatic linking.