Servers

jokku top

A live view of your servers, apps, instances and every request, in your terminal.

Terminal

jokku top

A live view of the machines, apps, instances and recent events, with CPU and memory for each, refreshed every two seconds. Over SSH it needs a terminal, so use ssh -t jokku@your-server top, or put -t in your alias.

Views#

Switch with the number keys, or with tab:

Key	View	Shows
`1`	Overview	Servers, apps and recent events at a glance
`2`	Nodes	Each server: status, CPU, memory, and memory promised to microVMs
`3`	Apps	Each app: healthy instances, release, last deploy, domains
`4`	Instances	Each microVM: state, server, CPU, memory, uptime, restarts
`5`	Events	Deploys, crashes, servers coming and going
`6`	Traffic	Every request, live

On a server or app, press enter to see its instances, and l for an app's logs. esc goes back, ? shows help and q quits.

Traffic#

Press 6 for Traffic. Every request flies across its app's lane as a dot and lands on the instance and server that answered:

Terminal

  42.6 req/s  ·  p50 3.1ms  p95 18ms  ·  0.4% errors  ·  12804 total
  api             28.1/s ┄┄●┄┄┄┄●┄┄┄●┄┄┄┄┄●┄┄●┄┄┄┄┄●┄┄ ▶ web.1@server-1 ▮▮▮▮▮▮ 14.2/s  web.2@server-2 ▮▮▮▮▮ 13.9/s
  shop            14.2/s ┄┄┄┄●┄┄┄┄┄┄┄●┄┄┄┄┄┄✖┄┄┄┄┄┄┄┄┄ ▶ web.1@server-2 ▮▮▮▮▮▮ 14.2/s
  docs             0.3/s ┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄●┄┄┄┄┄┄ ▶ web.1@server-1 ▮▮▮▮▮▮ 0.3/s

Dots are green for success, yellow for 4xx and red for 5xx, and the headline shows requests per second, latency and error rate, updating live. Below the lanes, you'll see which servers' proxies received the traffic and a list of recent requests.

Press p to pause and c to clear.

Events without the dashboard#

Terminal

jokku events
jokku events myapp -n 50