Google Cloud Monitoring vs Sensu Go

Google Cloud Monitoring provides visibility into the performance, availability, and health of applications and infrastructure. It automatically collects metrics for Google Cloud services and also supports hybrid and multicloud environments. The service brings together metrics, uptime checks, dashboards, and alerts; users can build custom dashboards and multi-condition alert policies. Service-level objectives can be inferred automatically or defined by users, with alerts for violations. Script-based synthetic monitors test web applications and APIs. For Kubernetes, Managed Service for Prometheus handles managed or self-deployed metric collection. On supported Linux and Windows virtual machines, the Ops Agent collects logs and metrics and includes third-party application integrations. Alerts can be sent through email, Slack, PagerDuty, Pub/Sub, SMS, webhooks, or the Cloud Mobile App. Cloud Monitoring API v3 offers programmatic access to metrics scopes, dashboards, and alerting policies. It runs in the cloud and lists API, Linux, web, and Windows platforms. Pricing is usage-based, with free monthly allotments on several meters; charges can depend on ingested data, time series returned, and check executions.

Sensu Go is a commercial monitoring and observability solution for enterprise DevOps and SRE teams overseeing infrastructure from Kubernetes to bare metal. It collects, filters, and transforms monitoring events before sending them to a database chosen by the customer. Teams can manage declarative monitoring configuration, check system and service health, collect metrics and logs, and run custom scripts including Nagios-style plugins. Agents discover virtual machines, public cloud compute instances, containers, and services. Sensu can alert by email, Slack, or SMS, create or resolve incidents in PagerDuty, ServiceNow, and JIRA, and deduplicate alerts. It also supports remediation actions such as restarting services or running scripts. Sensu Go is self-hosted and free for up to 100 nodes at one site. Pro costs $36 per year, billed annually, with a 100-node minimum; this equals $3.00 per node/month when billed annually. The free 14-day trial is for evaluating beyond 100 nodes. The backend is unsupported on Windows and macOS.