Troubleshooting Kibana health

Kibana, a UI product for accessing the Elasticsearch database, relies on several key features and plugins such as Telemetry, Rules, Reporting, and Sessions, which can affect its overall performance. The article discusses troubleshooting Kibana's health, particularly focusing on its dependencies, including connectivity to Elasticsearch, access to system indices, and the initialization of the Task Manager and other plugins. The Task Manager, crucial for Kibana's performance, has its own Health API, and issues with it can cascade into other plugins like security and reporting. The text emphasizes the importance of understanding and maintaining Kibana's health by checking its status via Kibana APIs and using JQ commands to parse JSON data and identify problematic plugins or rules. It also highlights the significance of managing Alerting Rules and their potential impact on Task Manager performance, suggesting methods to diagnose and address issues related to rule quantity and quality. The article encourages users to monitor Kibana's health actively and disable unnecessary rules to optimize performance.