We discuss application monitoring, instrumentation, and error reporting.** SHOW NOTES **• https://github.com/ferd/vmstats• https://timber.io• https://sentry.io/• https://www.datadoghq.com/• https://hackernoon.com/a-tour-of-elixir-performance-monitoring-tools-aac2df726e8c• https://github.com/lexmag/statix• https://github.com/ferd/recon• https://appsignal.com/elixir• https://scoutapp.com/elixir-monitoring• http://elastic.co/• https://aws.amazon.com/elasticsearch-service/• https://www.elastic.co/products/kibana• https://github.com/pinterest/elixometer• https://github.com/Feuerlabs/exometer• https://pulse.crevalle.io