Active Metric Categories
Firewall Metrics - Remember that FW rules are applied at the instance level in GCP. So Ingress Bytes and Egress Bytes are part of these instance level - firewall metrics
Instance Metrics - CPU Usage, CPU Utilization, Disk Average Latency, Disk Read, Disk Write, Uptime, Uptime Total, VM Memory Total
Log Based Metrics - Log Bytes (byte count) and Log Entries (Count of Entries)
Alert ( Policy) Conditions
- Metric Threshold: It triggers if the metric's value is sustained above or below the threshold for a given time
- Metric Absence: It triggers if the metric is absent for the given period
- Metric Rate of Change: True when the metric increases or decreases greater than the given rate over a given period
- Uptime Check Health: It triggers when two or more user-defined uptime checks fail
- Process Health: It triggers if the number of matching processes on a VM running the Stackdriver Monitoring Agent falls above or below the threshold for a given time
Notification Channels
Email, SMS, webhooks and the Cloud Console mobile app.
