Presentation

1. Henry Hoffman's Heartbeat framework:
   • http://people.cs.uchicago.edu/~hankhoffmann/
   • https://dl.acm.org/doi/10.1145/1809049.1809065
   • https://people.cs.uchicago.edu/~hankhoffmann/seec/

Kubernetes

Project-Specific notes on K8s

1. Feedback Systems MIT Course

2.

ClusterInfo

PID in Python: https://onion.io/2bt-pid-control-python/

PI -- loopshaping https://ocw.mit.edu/courses/mechanical-engineering/2-017j-design-of-electromechanical-robotic-systems-fall-2009/course-text/MIT2_017JF09_ch12.pdf

Links:

Smooth 3600-10 https://snapshot.raintank.io/dashboard/snapshot/eo1vh7cMf79NRf1Y5w95PVj7EQH3f3Lo?orgId=2

Spikes-7200-10-800 https://snapshot.raintank.io/dashboard/snapshot/q330II0p43yGx4qPnk4lkf8gG3ETft91?orgId=2

HAProxy-Brownout-3600-10-4to6-spikes: https://snapshot.raintank.io/dashboard/snapshot/czzXfp123YNVvXAflGDa00O8UDWkCi41?orgId=2

No brownout 3600-10 (10 sec + avg loss) https://snapshot.raintank.io/dashboard/snapshot/cY9vTqwl6gfVXUoONjMoZZKL1SyhyVaK?orgId=2

No brownout, panic test, 800 for 2 with 30, heavy on the Recommendations https://snapshot.raintank.io/dashboard/snapshot/k9NsE2hMsd9Uvx385trQZbjKPqBsY4rm?orgId=2

Long Poisson spikes no brownout https://snapshot.raintank.io/dashboard/snapshot/TTo2yxzJsE0SU9gSWJRnL22cRN2rHbTn?orgId=2

watch -n 1 'echo "show table" | socat /var/run/haproxy-stats.sock -'