data_save crashes rtjscomp (unhandledRejection)

[LFF5644]

RTJSCOMP v0.9.1 in node on linux (within systemd)

IS

• rtjscomp crashes because service tries to save but ENOENT: no such file or directory the dir account_lff not exists
• then it shuts down ALL SERVICES
• dont know why but as u see it tries to stop the service once more maybe because it failed to stop before
• and then node crashes instant without any warnings and savings
• and no the service is not the last that shoud stop, there are services after those

[normal running]
Jun 21 23:14:49 LFF-ServerN95 node[381816]: web/alexa/alexa-remote-noai: onAlexaAccountConnected: account lff verbunden.
Jun 21 23:14:49 LFF-ServerN95 node[381816]: web/alexa/alexa-remote-noai: Save: Account Cookie von lff geändert, speichere...
Jun 21 23:14:49 LFF-ServerN95 node[381816]: web/alexa/alexa-remote-noai: Save: Account Cookie von lff geändert, speichere...
Jun 21 23:14:49 LFF-ServerN95 node[381816]: [error] unhandledRejection: ENOENT: no such file or directory, open 'data/alexa/account_lff/secret_cookie.json'
Jun 21 23:14:49 LFF-ServerN95 node[381816]: Error: ENOENT: no such file or directory, open 'data/alexa/account_lff/secret_cookie.json'
Jun 21 23:14:49 LFF-ServerN95 node[381816]:     at async open (node:internal/fs/promises:637:25)
Jun 21 23:14:49 LFF-ServerN95 node[381816]:     at async Object.writeFile (node:internal/fs/promises:1219:14)
Jun 21 23:14:49 LFF-ServerN95 node[381816]:     at async Timeout.save [as _onTimeout] (eval at service_start_inner (/media/storage/Dateien/Programmierung/rtjscomp/node_modules/rtjscomp/rtjscomp.js:279:25), <anonymous>:60:5) {
Jun 21 23:14:49 LFF-ServerN95 node[381816]:   errno: -2,
Jun 21 23:14:49 LFF-ServerN95 node[381816]:   code: 'ENOENT',
Jun 21 23:14:49 LFF-ServerN95 node[381816]:   syscall: 'open',
Jun 21 23:14:49 LFF-ServerN95 node[381816]:   path: 'data/alexa/account_lff/secret_cookie.json'
Jun 21 23:14:49 LFF-ServerN95 node[381816]: }
Jun 21 23:14:49 LFF-ServerN95 node[381816]: stop http
[...]
Jun 21 23:14:49 LFF-ServerN95 node[381816]: web/alexa/alexa-remote-noai: stopping...
Jun 21 23:14:49 LFF-ServerN95 node[381816]: web/alexa/alexa-remote-noai: save: service not started yet, save later ...
Jun 21 23:14:49 LFF-ServerN95 node[381816]: web/alexa/alexa-remote-noai: stoppe alexa für account lff
Jun 21 23:14:49 LFF-ServerN95 node[381816]: [error] web/tasker/tasker stop: save is not defined
Jun 21 23:14:49 LFF-ServerN95 node[381816]: [error] unhandledRejection: ENOENT: no such file or directory, open 'data/alexa/account_lff/secret_cookie.json'
Jun 21 23:14:49 LFF-ServerN95 node[381816]: Error: ENOENT: no such file or directory, open 'data/alexa/account_lff/secret_cookie.json'
Jun 21 23:14:49 LFF-ServerN95 node[381816]:     at async open (node:internal/fs/promises:637:25)
Jun 21 23:14:49 LFF-ServerN95 node[381816]:     at async Object.writeFile (node:internal/fs/promises:1219:14)
Jun 21 23:14:49 LFF-ServerN95 node[381816]:     at async Timeout.save (eval at service_start_inner (/media/storage/Dateien/Programmierung/rtjscomp/node_modules/rtjscomp/rtjscomp.js:279:25), <anonymous>:60:5) {
Jun 21 23:14:49 LFF-ServerN95 node[381816]:   errno: -2,
Jun 21 23:14:49 LFF-ServerN95 node[381816]:   code: 'ENOENT',
Jun 21 23:14:49 LFF-ServerN95 node[381816]:   syscall: 'open',
Jun 21 23:14:49 LFF-ServerN95 node[381816]:   path: 'data/alexa/account_lff/secret_cookie.json'
Jun 21 23:14:49 LFF-ServerN95 node[381816]: }
Jun 21 23:14:49 LFF-ServerN95 systemd[1168]: rtjscomp.service: Main process exited, code=exited, status=1/FAILURE
Jun 21 23:14:49 LFF-ServerN95 systemd[1168]: rtjscomp.service: Failed with result 'exit-code'.
Jun 21 23:14:49 LFF-ServerN95 systemd[1168]: rtjscomp.service: Consumed 6.930s CPU time, 121.2M memory peak.
Jun 21 23:14:59 LFF-ServerN95 systemd[1168]: rtjscomp.service: Scheduled restart job, restart counter is at 1.
Jun 21 23:14:59 LFF-ServerN95 systemd[1168]: Starting rtjscomp.service - RTJSCOMP...
Jun 21 23:14:59 LFF-ServerN95 systemd[1168]: Started rtjscomp.service - RTJSCOMP.
Jun 21 23:15:00 LFF-ServerN95 node[382026]: rtjscomp v0.9.1 in node on linux
[restarts]

Shoud

• Only service crashes
• node[381816]: [error] unhandledRejection: wont crash rtjscomp (sad my uptime :()

[L3P3]

The key is in unhandledRejection: You made async file operation without try{} around it or .catch() behind it.
This is almost impossible to catch by rtjscomp because its all one node instance and unhandled async errors are almost impossible to handle.

Its like your app causes memory error in computer, must cause bluescreen as its not clear what broke it.

[LFF5644]

yes BUT, :) It also dont crashes if file not exists it returns just dangerous null that can BLUSCREEN MY PC xD