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Runbooks

Workhorse Apdex Degradation

A decrease in the workhorse SLI apdex can indicate increased Rails page load times.

Troubleshooting

Section titled “Troubleshooting”
  • Check if the decrease is caused by a specific route by querying request duration per route.
  • Can the decrease in apdex be be linked with a deployment?
  • Can the decrease in apdex be correlated with a feature flag change?
  • Checking stage group dashboards for a correlation can narrow down a responsible stage.

Suspicious Traffic

Section titled “Suspicious Traffic”
  • Checking the distribution of json.remote_ip in long running requests (Kibana) can reveal malicious traffic as the cause of a degraded apdex. Offending IP addresses can then be blocked.