Taparia: Legendary Web Lab

Build & Run

Install requirements:

Java 17+
Maven
Docker
make
NodeJS npm

Build:

sudo make wars

Build & Run:

sudo make infra

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web-taparia-jakarta's Issues

[model] Wrong Picture::hashCode is not idempotent

Logs:

taparia-backend   | 17:09:04,068 INFO  [PictureService] (default task-3) getPictureById(1) = Optional[-2027012227]
taparia-backend   | 17:09:04,866 INFO  [PictureService] (default task-3) getPictureById(1) = Optional[-572659571]
taparia-backend   | 17:09:05,523 INFO  [PictureService] (default task-3) getPictureById(1) = Optional[-60049704]
taparia-backend   | 17:09:06,106 INFO  [PictureService] (default task-3) getPictureById(1) = Optional[-1826218202]
taparia-backend   | 17:09:07,358 INFO  [PictureService] (default task-3) getPictureById(1) = Optional[-1134746218]
taparia-backend   | 17:09:08,712 INFO  [PictureService] (default task-3) getPictureById(1) = Optional[177302477]
taparia-backend   | 17:09:09,267 INFO  [PictureService] (default task-3) getPictureById(1) = Optional[1426940735]
taparia-backend   | 17:09:09,879 INFO  [PictureService] (default task-3) getPictureById(1) = Optional[-655257453]
taparia-backend   | 17:09:10,377 INFO  [PictureService] (default task-3) getPictureById(1) = Optional[-537015491]
taparia-backend   | 17:09:10,929 INFO  [PictureService] (default task-3) getPictureById(1) = Optional[904033145]
taparia-backend   | 17:09:11,574 INFO  [PictureService] (default task-3) getPictureById(1) = Optional[-749845703]
taparia-backend   | 17:09:11,924 INFO  [PictureService] (default task-3) getPictureById(1) = Optional[1173233822]

Maybe it is due to @EqualsAndHashCode(callSuper = true) in Figure abstract class children, it can call basic Object::hashCode which returns some "memory address".

Possible solution: remove this code on direct Figure children

@ToString(callSuper = true)
@EqualsAndHashCode(callSuper = true)

such as MultiFigure, SoloFigure, Ellipse, Polygon.

[observability] Improve observability using MBeans

[incident] Failed to initialize pool: FATAL: sorry, too many clients already

Dead during execution of test_rand.py with 1000 iterations and 1 user.

HikariPool-19 - Exception during pool initialization.: org.postgresql.util.PSQLException: FATAL: sorry, too many clients already

Script was completed successfully, but when we try to use app from browser, we die.
App Service restarts and dies with the same exception, then restarts again, then dies, then restarts...