Product Update: Monitoring EC2 and ALB with Anomaly Detection
Andreas Wittig – 03 Mar 2023
We are glad to announce a product update: marbot uses anomaly detection to when monitoring an EC2 instance or Application Load Balancer (ALB).
Please note, that this product update does only affect customers, who are using the Monitoring Assistant, that configures AWS monitoring automatically.
Who is already using the Monitoring Assitant?
- All teams that installed marbot for Slack after 2022-12-15.
- All teams that installed marbot for Microsoft Teams after 2023-01-17.
- All teams that opted-in by sending an email to support.
We are removing the CloudWatch alarm
marbot-target-5xx-count-too-high-*, that was monitoring server errors by target group to reduce costs caused by CloudWatch alarms. Nevertheless, marbot still monitors server errors on the ALB level with the CloudWatch alarm
marbot-alb-5xx-count-too-high-* alarm fired when detecting any alerts via the
HTTPCode_ELB_5XX_Count CloudWatch metric. From now on, marbot configures CloudWatch anomaly detection to monitor the
HTTPCode_ELB_5XX_Count metric. This will minimize the number of false alarms, but will ensure that an alert is sent in case of unusual error patterns.
By default, marbot uses anomaly detection to monitor the following metrics of an EC2 instance.
- CPU Utilization
- Network Utilization
Using anomaly detection instead of hard-coded thresholds reduces false alarms and makes sure you are getting notified if an EC2 instance runs under unusually high load.
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