Milliseid strateegiaid ja lähenemisviise kasutatakse Prometheusil põhineva jälgimissüsteemi usaldusväärsuse ja tõrkekindluse parandamiseks?

To improve the reliability and fault tolerance of the Prometheus-based monitoring system, the following strategies are applied:

• Redundancy and clustering: Using multiple Prometheus instances with data replication to prevent metric loss in case of a service failure.
• Long-term storage: Integration with storage systems like Thanos or Cortex, which provide scalability and fault tolerance.
• High availability metric sources: Configuring exporters and services to be fault-tolerant and not lose data.
• Alertmanager with replication: Using multiple Alertmanager instances to handle alerts without a single point of failure.
• Configuration backups: Storing and versioning Prometheus and Alertmanager configuration files.
• Monitoring of Prometheus itself: Setting up self-monitoring to detect issues early.
• Cautious use of pushgateway: For metrics that cannot be obtained directly, but with control to avoid data loss.

These approaches collectively ensure the robustness of the monitoring system against failures and enable quick recovery after them.