[![ED Hackathon](images/ed.hackathon.png)](https://www.kosicehackathon2022.sk/)
![Waste Management](images/smart.waste.service.jpg)
notes:
* http://www.catec.ae/Smart-Cities.html
![IoT Architecture Overview](images/iot.architecture-overview.png)
![Scaling of Busses](images/horizontal.and.vertical.scaling.of.busses.png)
## Scale Out vs Scale Up
![Scale Out vs Scale Up](images/scale.out.vs.scale.up.png)
![Cost difference in vertical vs horizontal scalability](images/price.of.scalability.png)
[![DB-Engines Score by DB Category](images/db-engines.score.png)](https://db-engines.com/en/ranking_categories)
### TSDB Areas
1. IoT
2. DevOps
3. Realtime Data Analysis
![Regular vs Irregular Time Series](images/regular.vs.irregular.time.series.png)
**Metriky** poskytujú **pohľad** na **aktuálny stav** vašej aplikácie. Prípadne vieme pomocou metrík zistiť **stav v čase**.
[![Four Golden Signals](https://sysdig.com/wp-content/uploads/2019/06/golden_signals-e1559941419511.png)](https://sre.google/sre-book/monitoring-distributed-systems/)
## Pull vs Push Model
(aggregating metrics)
## Good Dashboards Tells Stories
[![UDIF](https://udif.cz/wp-content/uploads/2022/04/logo-UDiF-uzasne-divadlo-fyziky-barevne.png)](https://udif.cz/)
![Aka je to rozpravka?](https://udif.cz/advent/2021/pohadky/img/01.png)
![Aka je to rozpravka?](https://udif.cz/advent/2021/pohadky/img/02.png)
![Aka je to rozpravka?](https://udif.cz/advent/2021/pohadky/img/04.png)
![Aka je to rozpravka?](https://udif.cz/advent/2021/pohadky/img/06.png)
![Aka je to rozpravka?](https://udif.cz/advent/2021/pohadky/img/07.png)
![Aka je to rozpravka?](https://udif.cz/advent/2021/pohadky/img/09.png)
![Aka je to rozpravka?](https://udif.cz/advent/2021/pohadky/img/10.png)