⚠ Switch to EXCALIDRAW VIEW in the MORE OPTIONS menu of this document. ⚠ You can decompress Drawing data with the command palette: ‘Decompress current Excalidraw file’. For more info check in plugin settings under ‘Saving’

Excalidraw Data

Text Elements

user

load balancer

Application server

exchange

RDBMS

trade service

stock price

service

read heavy

DB

ever growing db depends on time fast query

cadandra

ES

, Influx DB

select * from trigger where stockId=stockId && stockPrice>thresold

fetch triggers

notification service

ex will send update regarding the order

  1. polling
  2. callback