After Ubuntu 22/24 Upgrade syslog getting spammed and grows way to much clogging up the diskspace

[sozialinfo]

We're currently seeing this issue on v8.3.1 (Ubuntu 24.04.1 LTS)

@girish thank you for fixing this! When will this fix be rolled out?

@BrutalBirdie thanks for the quick fix! We applied it and it worked perfectly.

[joseph]

@sozialinfo patch will only be part of cloudron 9 (no ETA, but in coming month)

[tobiasb]

I would like to see this bugfix already in 8.3.x. Please <3.

[necrevistonnezr]

The patch described in https://forum.cloudron.io/topic/13361/after-ubuntu-22-24-upgrade-syslog-getting-spammed-and-grows-way-to-much-clogging-up-the-diskspace/11# Is not available anymore (Error 500)

[BrutalBirdie]

@necrevistonnezr That is because https://git.cloudron.io/ is currently throwing err 500.

---

Has been resolved, is now all good again.

[tobiasb]

Fyi: The fix was not part of 8.3.2. Now we need patch it again.

[bscabl]

@BrutalBirdie this is great, solved the issue for me!

[SansGuidon]

FYI I got the same problem a few times in past weeks, I understand this will be solved in Cloudron 9, right? But if yes I'm a bit confused that we need to apply such a patch manually when this could be part of an update. Anyway truncating the syslog + applying the patch got me rid of 60GB of spam in log files.
I'm interested in how others are dealing with this.

[girish]

@SansGuidon the issue arises only with the logs of some specific apps it seems. Did you notice which app specifically is growing in log size? Or is it all the app logs? But you are right, this problem is solved only in Cloudron 9.

[jdaviescoates]

@girish I don't think I've hit this issue myself, but why not just push out an 8.3.3 with this fix?

[SansGuidon]

@girish said in After Ubuntu 22/24 Upgrade syslog getting spammed and grows way to much clogging up the diskspace:

@SansGuidon the issue arises only with the logs of some specific apps it seems. Did you notice which app specifically is growing in log size? Or is it all the app logs? But you are right, this problem is solved only in Cloudron 9.

Based on early investigation, some apps like Syncthing and Lamp, or even wallos, generate more logs than the rest. But this is just when looking at the data of past hours, and after applying the diff + logrotate tuning. I'll keep you posted if I find more interesting evidence. If someone has a script to quickly generate relevant stats, I'm interested.

[SansGuidon]

@jdaviescoates Yes, could help, as in current state, the syslog implementation generate errors in my logs, which could explain the logs growing in size. So I had to apply the diff to avoid this repeated pattern

2025-08-31T20:42:40.149390+00:00 ubuntu-cloudron-16gb-nbg1-3 syslog.js[970341]: <30>1 2025-08-31T20:42:40Z ubuntu-cloudron-16gb-nbg1-3 b5b418fc-0f16-4cde-81a1-1213880c9a10 1123 b5b418fc-0f16-4cde-81a1-1213880c9a10 - IndexError: list index out of range
2025-08-31T20:42:40.240033+00:00 ubuntu-cloudron-16gb-nbg1-3 syslog.js[970341]: <30>1 2025-08-31T20:42:40Z ubuntu-cloudron-16gb-nbg1-3 cd4a6fed-6fd7-4616-ba0d-d0c38972774b 1123 cd4a6fed-6fd7-4616-ba0d-d0c38972774b - 172.18.0.1 - - [31/Aug/2025:20:42:40 +0000] "GET / HTTP/1.1" 200 45257 "-" "Mozilla (CloudronHealth)"
2025-08-31T20:42:41.676806+00:00 ubuntu-cloudron-16gb-nbg1-3 syslog.js[970341]: <30>1 2025-08-31T20:42:41Z ubuntu-cloudron-16gb-nbg1-3 mongodb 1123 mongodb - {"t":{"$date":"2025-08-31T20:42:41.675+00:00"},"s":"D1", "c":"REPL",     "id":21223,   "ctx":"NoopWriter","msg":"Set last known op time","attr":{"lastKnownOpTime":{"ts":{"$timestamp":{"t":1756672961,"i":1}},"t":42}}}
2025-08-31T20:42:43.067695+00:00 ubuntu-cloudron-16gb-nbg1-3 syslog.js[970341]: <30>1 2025-08-31T20:42:43Z ubuntu-cloudron-16gb-nbg1-3 mongodb 1123 mongodb - {"t":{"$date":"2025-08-31T20:42:43.066+00:00"},"s":"D1", "c":"NETWORK",  "id":4668132, "ctx":"ReplicaSetMonitor-TaskExecutor","msg":"ReplicaSetMonitor ping success","attr":{"host":"mongodb:27017","replicaSet":"rs0","durationMicros":606}}
2025-08-31T20:42:44.061046+00:00 ubuntu-cloudron-16gb-nbg1-3 syslog.js[970341]: <30>1 2025-08-31T20:42:44Z ubuntu-cloudron-16gb-nbg1-3 b5b418fc-0f16-4cde-81a1-1213880c9a10 1123 b5b418fc-0f16-4cde-81a1-1213880c9a10 -     url = link.split(" : ")[0].split(" ")[1].strip("[]")
2025-08-31T20:42:44.061077+00:00 ubuntu-cloudron-16gb-nbg1-3 syslog.js[970341]: <30>1 2025-08-31T20:42:44Z ubuntu-cloudron-16gb-nbg1-3 b5b418fc-0f16-4cde-81a1-1213880c9a10 1123 b5b418fc-0f16-4cde-81a1-1213880c9a10 -           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^
2025-08-31T20:42:44.061100+00:00 ubuntu-cloudron-16gb-nbg1-3 syslog.js[970341]: <30>1 2025-08-31T20:42:44Z ubuntu-cloudron-16gb-nbg1-3 b5b418fc-0f16-4cde-81a1-1213880c9a10 1123 b5b418fc-0f16-4cde-81a1-1213880c9a10 - IndexError: list index out of range