Safe to truncate /home/yellowtent/platformdata/logs/* when large disk consumer?

[robi]

@d19dotca you're not wrong. I asked about this in the past and we do need much better log hygiene and settings that add up.

@staff can also reflect on how many logs they need while troubleshooting and think about a separate compressed retention setting for those who need to keep 3|6|9 months of logs.

[girish]

I have to admin I haven't thought about how much logs to retain. It really depends on the app and the incident to determine how much longs one needs. The current settings are simply values that seemed reasonable.

@d19dotca It is not correct that only some of the apps have logrotate configs. Can you pick some missing app and then go to Location view and click save? This will re-create the logrotate config for them. BTW, is this after a full server restore? Maybe there is some bug here.

[d19dotca]

@girish Yeah I definitely think there's room for improvement there. Personally I think I'd set the default to be whatever you most often see being reported (or more specifically how quickly you see it being reported). I.e. do you see issues being reported from a month or two ago? Or do you see them usually being reported within hours to a week of the incident noted in the logs? I'd assume the latter, meaning we likely don't need to be keeping so many logs. And then when there's a rare issue that comes up where we need more logs, the person reporting it can simply make that quick change in the logrotate.conf file to help you guys out to debug more. That's my two cents anyways. Personally I don't think there's any use in keeping logs for more than a few days to a week in most cases.

Glad to know that there should be a folder for each app. I definitely only have 5 in there right now which isn't even close to the ~20 I have running, so I will try that out on a few and get back to you then if that helps at all.

The last time I would have restored this particular server would have been last summer sometime, so I would hope that'd have been fixed by now over time if there was a bug in there since almost every app has been updated since then too. Maybe app package updates need to also trigger that process to ensure it has a custom logrotate directory for itself?

I'll update once I've tested that more. Thanks for the help, Girish.

[girish]

@d19dotca said in Safe to truncate /home/yellowtent/platformdata/logs/* when large disk consumer?:

Glad to know that there should be a folder for each app

There's a config file for each app btw and not a folder. It will like <appid>.conf

[d19dotca]

@girish Ah sorry, wrong terminology on my part. Thanks for clarifying.

[d19dotca]

@girish Okay... I think I found a possible root cause of the issue (though it shouldn't be a big deal long-term, would only impact why I saw only 5 apps yesterday)... I believe the root cause is when an app has a pending update (the green up arrow next to it) then the logrotate mysteriously disappears. Here's why I feel this way and my detailed testing and investigation here...

1. I forced the logrotate again today and it somehow cleared up another large batch of space, taking it from the leftover nearly 2 GB yesterday to just under 600 MB today.

ubuntu@my:~$ sudo du -ch -d 1 /home/yellowtent/platformdata/ | sort -hr
3.3G	total
3.3G	/home/yellowtent/platformdata/
1.8G	/home/yellowtent/platformdata/mysql
592M	/home/yellowtent/platformdata/logs
522M	/home/yellowtent/platformdata/mongodb
358M	/home/yellowtent/platformdata/graphite
89M	/home/yellowtent/platformdata/postgresql
7.6M	/home/yellowtent/platformdata/redis
724K	/home/yellowtent/platformdata/nginx
164K	/home/yellowtent/platformdata/update
128K	/home/yellowtent/platformdata/collectd
116K	/home/yellowtent/platformdata/backup
104K	/home/yellowtent/platformdata/logrotate.d
32K	/home/yellowtent/platformdata/addons
8.0K	/home/yellowtent/platformdata/acme

2. Realized that when I listed out the /home/yellowtent/platformdata/logrotate.d/ directory, I suddenly had many more app configs listed in there than there was yesterday. Yesterday there was 5 apps only, today there were many (if not all of them at quick glance):

ubuntu@my:~$ ls -alh /home/yellowtent/platformdata/logrotate.d/
total 108K
drwxr-xr-x  2 root       root       4.0K Feb  9 04:22 .
drwxr-xr-x 15 yellowtent yellowtent 4.0K Dec  9 04:03 ..
-rw-r--r--  1 root       root        946 Feb  9 04:13 0e55f920-98bd-4ff6-b591-7254c28451c0
-rw-r--r--  1 root       root        946 Feb  9 04:22 11c6fe46-82ff-4ea4-b816-3b78a962d048
-rw-r--r--  1 root       root        946 Feb  9 04:14 1c4fd6e4-09ed-4628-a2f4-0938312536f5
-rw-r--r--  1 root       root        946 Feb  9 04:13 24bff5cf-736c-49a2-a0aa-87e59131c4b6
-rw-r--r--  1 root       root        946 Feb  9 04:12 28f810a3-2d17-4e45-b0f8-e581528ac4ba
-rw-r--r--  1 root       root        946 Feb  9 04:10 3167ef7d-e4c2-4072-8e11-8de49c5db970
-rw-r--r--  1 root       root        946 Feb  9 04:08 38f883dc-4047-4237-a6a1-3ecd77efcde9
-rw-r--r--  1 root       root        946 Feb  9 04:09 47164e82-f1d2-4fae-9959-507062614906
-rw-r--r--  1 root       root        946 Feb  9 04:14 83d329e1-6571-46e5-b14f-07477b8f2aac
-rw-r--r--  1 root       root        946 Feb  3 04:00 8732aed0-273e-49f5-837f-cd9c600bf7b9
-rw-r--r--  1 root       root        946 Feb  3 04:00 9fdedb7f-1bd4-42f6-a7e8-9831df9da8dd
-rw-r--r--  1 root       root        946 Feb  9 04:12 b6fa7dcd-1d93-4786-82e0-90a634f8c3a7
-rw-r--r--  1 root       root        946 Feb  9 04:09 be3840f0-458e-4bd8-8d18-34120ebdfce4
-rw-r--r--  1 root       root        230 Feb  2 16:21 box
-rw-r--r--  1 root       root        946 Feb  9 04:15 c6a63a87-aa45-4281-b4ad-e65c85817f5d
-rw-r--r--  1 root       root        946 Feb  9 04:15 cf1d5c7c-d4f0-4c32-ada8-e25ab025bd3d
-rw-r--r--  1 root       root        946 Feb  9 04:09 d0d6e4ea-36e2-42df-ae47-c59a6d5bf60d
-rw-r--r--  1 root       root        946 Feb  9 04:14 d2df514f-18f6-4e4e-84a1-69bd6360765c
-rw-r--r--  1 root       root        946 Feb  9 04:14 d2e46149-3287-4944-8e86-1c9a03e12641
-rw-r--r--  1 root       root        946 Feb  9 04:14 dc527d19-aced-44fa-bae1-a0b22c358a44
-rw-r--r--  1 root       root        946 Feb  9 04:12 de175741-ee83-4085-b04f-a0048cbdf493
-rw-r--r--  1 root       root        946 Feb  3 04:00 ea2ee30a-8d3b-4a3b-8817-19b0f1e17bd7
-rw-r--r--  1 root       root        946 Feb  9 04:13 f1fe6d67-0897-4063-bc76-0ef7256bac7a
-rw-r--r--  1 root       root        946 Feb  9 04:14 f2dbde27-0159-4e28-803e-7a3fc21450fb
-rw-r--r--  1 root       root       1.1K Feb  2 16:21 platform

3. Digged further into the logs usage and found that one app in particular was using significantly more than the rest:

ubuntu@my:~$ sudo du -ch -d 1 /home/yellowtent/platformdata/logs | sort -hr
592M	total
592M	/home/yellowtent/platformdata/logs
204M	/home/yellowtent/platformdata/logs/d3121e48-4196-48fe-907d-ee831e11ce5c
76M	/home/yellowtent/platformdata/logs/e50f78c7-da6e-4036-a1a3-0cc934448cf1
72M	/home/yellowtent/platformdata/logs/e18fa18b-b176-4b25-bf78-4d82c022b0f5
37M	/home/yellowtent/platformdata/logs/c40f9f5f-037c-4a1d-8538-f1f4d4b82f5d
22M	/home/yellowtent/platformdata/logs/turn
11M	/home/yellowtent/platformdata/logs/f1fe6d67-0897-4063-bc76-0ef7256bac7a
11M	/home/yellowtent/platformdata/logs/11c6fe46-82ff-4ea4-b816-3b78a962d048
11M	/home/yellowtent/platformdata/logs/0e55f920-98bd-4ff6-b591-7254c28451c0
9.8M	/home/yellowtent/platformdata/logs/1c4fd6e4-09ed-4628-a2f4-0938312536f5
9.6M	/home/yellowtent/platformdata/logs/47164e82-f1d2-4fae-9959-507062614906
9.4M	/home/yellowtent/platformdata/logs/f2dbde27-0159-4e28-803e-7a3fc21450fb
9.1M	/home/yellowtent/platformdata/logs/c6a63a87-aa45-4281-b4ad-e65c85817f5d
8.6M	/home/yellowtent/platformdata/logs/dc527d19-aced-44fa-bae1-a0b22c358a44
8.5M	/home/yellowtent/platformdata/logs/d2e46149-3287-4944-8e86-1c9a03e12641
8.4M	/home/yellowtent/platformdata/logs/d0d6e4ea-36e2-42df-ae47-c59a6d5bf60d
8.1M	/home/yellowtent/platformdata/logs/492b4264-fea8-4d52-bbe6-1f15ce72c53a
7.2M	/home/yellowtent/platformdata/logs/mail

4. I noticed that app d3121e48-4196-48fe-907d-ee831e11ce5c was the Radicale card/calDAV app. I then checked the list of logrotate app configs and sure enough that one was missing from the list as you can see above in #2.
5. I followed the steps suggested by @girish and that was then successful in creating the new logrotate for Radicale app, and then I ran logrotate again and it of course cleared even more space now. This lead me to see the following usage afterwards (took the Radicale log usage from 204 MB to 53 MB now):

ubuntu@my:~$ sudo du -ch -d 1 /home/yellowtent/platformdata/logs | sort -hr
272M	total
272M	/home/yellowtent/platformdata/logs
76M	/home/yellowtent/platformdata/logs/e50f78c7-da6e-4036-a1a3-0cc934448cf1
72M	/home/yellowtent/platformdata/logs/e18fa18b-b176-4b25-bf78-4d82c022b0f5
53M	/home/yellowtent/platformdata/logs/d3121e48-4196-48fe-907d-ee831e11ce5c
37M	/home/yellowtent/platformdata/logs/c40f9f5f-037c-4a1d-8538-f1f4d4b82f5d
8.1M	/home/yellowtent/platformdata/logs/492b4264-fea8-4d52-bbe6-1f15ce72c53a
368K	/home/yellowtent/platformdata/logs/turn
136K	/home/yellowtent/platformdata/logs/f1fe6d67-0897-4063-bc76-0ef7256bac7a
88K	/home/yellowtent/platformdata/logs/24bff5cf-736c-49a2-a0aa-87e59131c4b6
76K	/home/yellowtent/platformdata/logs/1c4fd6e4-09ed-4628-a2f4-0938312536f5
64K	/home/yellowtent/platformdata/logs/mail

6. I then looked at the new #1 consumer app ID e50f78c7-da6e-4036-a1a3-0cc934448cf1 which was associated to Matomo, and it too was missing a logrotate config file.

I realized at this point that Matomo had an app update associated with it currently in my Dashboard. Yesterday when I only saw 5 apps, the vast majority of the apps at that time also had updates pending (WordPress makes up around 12-15 of my app instances, then Roundcube was one, plus Bitwarden was another, so had roughly 14-17 or so apps with pending updates at that time which I then updated last night). This makes me suspicious that possibly an app having a pending app update somehow removes it's logrotate configuration file. It kind of explains why I only saw a few apps listed yesterday, as well as why it recovered so much more disk space today when all those apps were updated last night and today their logrotates suddenly existed again. To be fair though, it doesn't explain why Radicale didn't have one today as Radicale hasn't been updated in a while and no pending app updates for it, so that's the one app that goes against my theory.

Either way... I see issues here with missing logrotate configs. And that's of course on top of the disk space concern, however I suppose if everything was running properly with logrotate my main concern may be a moot point by then. So the root cause of all of all of this may simply be missing logrotate configurations for apps.

I should add... I haven't updated Matomo yet, in case the Cloudron team wanted to connect to my server to do that update and see if logrotate suddenly exists afterwards, in case that helps at all with troubleshooting.

[girish]

@d19dotca Thanks for the details analysis! So, after you report I decided to look into some of the Cloudrons I have access to and indeed logrotate configs for some apps are missing. Let me debug further, but there is definitely some bug.

[d19dotca]

I just wanted to say I noticed an excessive use of logs again on my server. I guess this wasn't fixed yet, eh?

ubuntu@cloudron:~$ sudo du -ch -d 1 /home/yellowtent/platformdata/logs | sort -hr
12G	total
12G	/home/yellowtent/platformdata/logs
1.6G	/home/yellowtent/platformdata/logs/tasks
919M	/home/yellowtent/platformdata/logs/6b3ebc4f-9708-4243-bc21-4c9a01bc3499
916M	/home/yellowtent/platformdata/logs/76aa4cfd-a1c7-451a-a11e-a4fabe5ff95b
804M	/home/yellowtent/platformdata/logs/9f9aba4a-f7b1-44d8-859c-c6953027c39e
803M	/home/yellowtent/platformdata/logs/00895422-a1ff-4196-8bb8-cb4ff8d6eeaa
801M	/home/yellowtent/platformdata/logs/6e21d87b-ea85-420b-8eed-8b14d601438d
755M	/home/yellowtent/platformdata/logs/f6b21e27-6d25-4c69-a547-0466e622d719
754M	/home/yellowtent/platformdata/logs/493c4f88-5d4d-40e5-8361-fd7d4541441d
735M	/home/yellowtent/platformdata/logs/633f2c77-9b33-457a-bc3c-919c87d25ca2
726M	/home/yellowtent/platformdata/logs/29354a9c-7e1d-4986-b78e-3510fe73b370
699M	/home/yellowtent/platformdata/logs/6120f84a-0953-4982-9167-ef872c0ee49a
685M	/home/yellowtent/platformdata/logs/05db518f-2c45-411b-865f-813dbf85c244
561M	/home/yellowtent/platformdata/logs/8dba8d47-7890-49d3-8dfa-970e1ec52991
294M	/home/yellowtent/platformdata/logs/e18fa18b-b176-4b25-bf78-4d82c022b0f5
271M	/home/yellowtent/platformdata/logs/d3121e48-4196-48fe-907d-ee831e11ce5c
85M	/home/yellowtent/platformdata/logs/200d36ca-8109-409a-9b56-07f46c2f09bd
83M	/home/yellowtent/platformdata/logs/4d2fc2b7-2475-4c6b-97b4-4f896fbe8e9e
76M	/home/yellowtent/platformdata/logs/21aecd6a-398a-433a-a954-5bcd5f861e20
67M	/home/yellowtent/platformdata/logs/4929b73d-cfa4-4246-82a7-4bc8127982f6
57M	/home/yellowtent/platformdata/logs/93c19968-5b36-4412-adfe-3a8f338143ec
46M	/home/yellowtent/platformdata/logs/95c45c33-bd8a-4fae-9718-509c69456abe
43M	/home/yellowtent/platformdata/logs/134ef7f1-46f8-403e-8ac5-a3297b37893f
43M	/home/yellowtent/platformdata/logs/1247a348-c8da-4f30-8a4c-3fa014f092a1
36M	/home/yellowtent/platformdata/logs/c40f9f5f-037c-4a1d-8538-f1f4d4b82f5d
33M	/home/yellowtent/platformdata/logs/8315f008-87e9-4f62-9ae8-1938d7b3f9b2
26M	/home/yellowtent/platformdata/logs/graphite
25M	/home/yellowtent/platformdata/logs/mail
23M	/home/yellowtent/platformdata/logs/turn
20M	/home/yellowtent/platformdata/logs/e50f78c7-da6e-4036-a1a3-0cc934448cf1
19M	/home/yellowtent/platformdata/logs/3167ef7d-e4c2-4072-8e11-8de49c5db970
16M	/home/yellowtent/platformdata/logs/sftp
14M	/home/yellowtent/platformdata/logs/ea2ee30a-8d3b-4a3b-8817-19b0f1e17bd7
13M	/home/yellowtent/platformdata/logs/38f883dc-4047-4237-a6a1-3ecd77efcde9
9.3M	/home/yellowtent/platformdata/logs/collectd
8.9M	/home/yellowtent/platformdata/logs/redis-e18fa18b-b176-4b25-bf78-4d82c022b0f5
4.5M	/home/yellowtent/platformdata/logs/9fdedb7f-1bd4-42f6-a7e8-9831df9da8dd
3.9M	/home/yellowtent/platformdata/logs/0db23e8d-9515-45ad-8739-6cf2a2b1078f
3.7M	/home/yellowtent/platformdata/logs/mysql
3.4M	/home/yellowtent/platformdata/logs/8732aed0-273e-49f5-837f-cd9c600bf7b9
2.9M	/home/yellowtent/platformdata/logs/redis-1247a348-c8da-4f30-8a4c-3fa014f092a1
2.8M	/home/yellowtent/platformdata/logs/mongodb
2.7M	/home/yellowtent/platformdata/logs/redis-f6b21e27-6d25-4c69-a547-0466e622d719
2.7M	/home/yellowtent/platformdata/logs/redis-9f9aba4a-f7b1-44d8-859c-c6953027c39e
2.7M	/home/yellowtent/platformdata/logs/redis-95c45c33-bd8a-4fae-9718-509c69456abe
2.7M	/home/yellowtent/platformdata/logs/redis-8dba8d47-7890-49d3-8dfa-970e1ec52991
2.7M	/home/yellowtent/platformdata/logs/redis-76aa4cfd-a1c7-451a-a11e-a4fabe5ff95b
2.7M	/home/yellowtent/platformdata/logs/redis-6e21d87b-ea85-420b-8eed-8b14d601438d
2.7M	/home/yellowtent/platformdata/logs/redis-6b3ebc4f-9708-4243-bc21-4c9a01bc3499
2.7M	/home/yellowtent/platformdata/logs/redis-6120f84a-0953-4982-9167-ef872c0ee49a
2.7M	/home/yellowtent/platformdata/logs/redis-493c4f88-5d4d-40e5-8361-fd7d4541441d
2.7M	/home/yellowtent/platformdata/logs/redis-29354a9c-7e1d-4986-b78e-3510fe73b370
2.7M	/home/yellowtent/platformdata/logs/redis-200d36ca-8109-409a-9b56-07f46c2f09bd
2.7M	/home/yellowtent/platformdata/logs/redis-05db518f-2c45-411b-865f-813dbf85c244
2.7M	/home/yellowtent/platformdata/logs/redis-00895422-a1ff-4196-8bb8-cb4ff8d6eeaa
2.6M	/home/yellowtent/platformdata/logs/redis-134ef7f1-46f8-403e-8ac5-a3297b37893f
2.6M	/home/yellowtent/platformdata/logs/40ae3d28-d67f-453e-895d-0f22b539372c
2.0M	/home/yellowtent/platformdata/logs/redis-4d2fc2b7-2475-4c6b-97b4-4f896fbe8e9e
1.5M	/home/yellowtent/platformdata/logs/redis-4929b73d-cfa4-4246-82a7-4bc8127982f6
1.1M	/home/yellowtent/platformdata/logs/redis-21aecd6a-398a-433a-a954-5bcd5f861e20
924K	/home/yellowtent/platformdata/logs/redis-93c19968-5b36-4412-adfe-3a8f338143ec
416K	/home/yellowtent/platformdata/logs/492b4264-fea8-4d52-bbe6-1f15ce72c53a
288K	/home/yellowtent/platformdata/logs/updater
168K	/home/yellowtent/platformdata/logs/redis-633f2c77-9b33-457a-bc3c-919c87d25ca2
152K	/home/yellowtent/platformdata/logs/postgresql
112K	/home/yellowtent/platformdata/logs/redis-0db23e8d-9515-45ad-8739-6cf2a2b1078f
4.0K	/home/yellowtent/platformdata/logs/crash
4.0K	/home/yellowtent/platformdata/logs/backup

[necrevistonnezr]

@d19dotca said in Safe to truncate /home/yellowtent/platformdata/logs/* when large disk consumer?:

sudo du -ch -d 1 /home/yellowtent/platformdata/logs | sort -hr

for me, /home/yellowtent/platformdata/logs/graphite has more than 580 MB of logs, as well. Is that normal?

[robi]

it's from all the crashing

[nebulon]

@necrevistonnezr you can delete those files safely, of course you will lose all logs history, but if you don't have any immediate issue on your server besides log size, you can just remove them via ssh.

[d19dotca]

The logs are still being poorly maintained it seems, they account for several GBs of disk space which seems crazy high for just logs:

813M	/home/yellowtent/platformdata/logs/6b3ebc4f-9708-4243-bc21-4c9a01bc3499/app.log
788M	/home/yellowtent/platformdata/logs/4929b73d-cfa4-4246-82a7-4bc8127982f6/app.log
712M	/home/yellowtent/platformdata/logs/6e21d87b-ea85-420b-8eed-8b14d601438d/app.log
656M	/home/yellowtent/platformdata/logs/493c4f88-5d4d-40e5-8361-fd7d4541441d/app.log
631M	/home/yellowtent/platformdata/logs/6120f84a-0953-4982-9167-ef872c0ee49a/app.log
629M	/home/yellowtent/platformdata/logs/f6b21e27-6d25-4c69-a547-0466e622d719/app.log
613M	/home/yellowtent/platformdata/logs/4d2fc2b7-2475-4c6b-97b4-4f896fbe8e9e/app.log
596M	/home/yellowtent/platformdata/logs/21aecd6a-398a-433a-a954-5bcd5f861e20/app.log
578M	/home/yellowtent/platformdata/logs/05db518f-2c45-411b-865f-813dbf85c244/app.log
514M	/home/yellowtent/platformdata/logs/8dba8d47-7890-49d3-8dfa-970e1ec52991/app.log

In my case, it seems the same issue I reported back February remains... there are missing logrotate.conf files for the area where there's far too high of log file sizes.

Example: Note that logs for 6b3ebc4f-9708-4243-bc21-4c9a01bc3499 was the largest... when I run the following command, there's nothing returned, suggesting the logrotate.conf is missing for this one, and likely all the rest too: ls -alh /home/yellowtent/platformdata/logrotate.d/ | grep 6b3ebc4f-9708-4243-bc21-4c9a01bc3499 returns no files.

When I do an ls -alh listing for the directory, here is all that exists which seems far too few:

ls -alh /home/yellowtent/platformdata/logrotate.d
total 80K
drwxr-xr-x  2 root       root       4.0K May 29 05:00 .
drwxr-xr-x 15 yellowtent yellowtent 4.0K May 15 07:27 ..
-rw-r--r--  1 root       root        946 May 15 20:21 00895422-a1ff-4196-8bb8-cb4ff8d6eeaa
-rw-r--r--  1 root       root        946 May 17 22:43 02b2f762-afa4-4278-afaa-5c07ad29715e
-rw-r--r--  1 root       root        946 May 20 16:28 200d36ca-8109-409a-9b56-07f46c2f09bd
-rw-r--r--  1 root       root        946 May 21 17:35 29354a9c-7e1d-4986-b78e-3510fe73b370
-rw-r--r--  1 root       root        946 May 27 05:00 3167ef7d-e4c2-4072-8e11-8de49c5db970
-rw-r--r--  1 root       root        946 May 29 05:00 492b4264-fea8-4d52-bbe6-1f15ce72c53a
-rw-r--r--  1 root       root        946 May 20 16:23 633f2c77-9b33-457a-bc3c-919c87d25ca2
-rw-r--r--  1 root       root        946 May 17 22:41 64098702-00d1-4d2e-8d27-4597e100d1c9
-rw-r--r--  1 root       root        946 May 23 06:28 76aa4cfd-a1c7-451a-a11e-a4fabe5ff95b
-rw-r--r--  1 root       root        946 May 16 06:37 9f9aba4a-f7b1-44d8-859c-c6953027c39e
-rw-r--r--  1 root       root        230 May 15 09:00 box
-rw-r--r--  1 root       root        946 May 17 22:38 c3ddc268-deef-49e0-8e3a-97e174cf0594
-rw-r--r--  1 root       root        946 May 27 20:55 c40f9f5f-037c-4a1d-8538-f1f4d4b82f5d
-rw-r--r--  1 root       root        946 May 27 21:00 ca7827f8-4686-4818-a821-f92fe4f5726d
-rw-r--r--  1 root       root        946 May 18 05:00 e18fa18b-b176-4b25-bf78-4d82c022b0f5
-rw-r--r--  1 root       root        946 May 26 15:44 e50f78c7-da6e-4036-a1a3-0cc934448cf1
-rw-r--r--  1 root       root        946 May 24 00:24 ed41aa60-ff4d-4e8e-8796-8c7de4bdf1a9
-rw-r--r--  1 root       root       1.1K May 15 09:00 platform

[nebulon]

@d19dotca is it possible that the missing logrotate files would be for already uninstalled apps and those large log files are just not cleaned up after uninstallation?

[d19dotca]

@nebulon said in Safe to truncate /home/yellowtent/platformdata/logs/* when large disk consumer?:

@d19dotca is it possible that the missing logrotate files would be for already uninstalled apps and those large log files are just not cleaned up after uninstallation?

No, unfortunately not. That has never been the case either, wish it was that easy. haha. I reported earlier in this thread that re-saving an app with from Location tab will regenerate the logrotate configs for the app. They just go missing randomly, no idea why they disappear, but I at least know how to get them back. Unfortunately I am not aware of any of this until I randomly check sizing on my server and find incredibly large log files which then leads me to discover the apps are missing logrotate configs. Saving the app again so it sort of rebuilds itself will regenerate it. I just looked now and there are a bunch more, for example: I didn't do anything beyond restoring the Cloudron backup to a new Cloudron instance in the Vultr Marketplace last night:

ls -alh /home/yellowtent/platformdata/logrotate.d
total 156K
drwxr-xr-x  2 root       root       4.0K May 31 03:54 .
drwxr-xr-x 15 yellowtent yellowtent 4.0K May 30 06:27 ..
-rw-r--r--  1 root       root        946 May 30 06:28 00895422-a1ff-4196-8bb8-cb4ff8d6eeaa
-rw-r--r--  1 root       root        946 May 30 06:28 02b2f762-afa4-4278-afaa-5c07ad29715e
-rw-r--r--  1 root       root        946 May 30 06:28 05db518f-2c45-411b-865f-813dbf85c244
-rw-r--r--  1 root       root        946 May 30 06:28 1247a348-c8da-4f30-8a4c-3fa014f092a1
-rw-r--r--  1 root       root        946 May 30 06:28 134ef7f1-46f8-403e-8ac5-a3297b37893f
-rw-r--r--  1 root       root        946 May 30 06:28 200d36ca-8109-409a-9b56-07f46c2f09bd
-rw-r--r--  1 root       root        946 May 30 06:28 21aecd6a-398a-433a-a954-5bcd5f861e20
-rw-r--r--  1 root       root        946 May 30 06:28 29354a9c-7e1d-4986-b78e-3510fe73b370
-rw-r--r--  1 root       root        946 May 30 06:28 3167ef7d-e4c2-4072-8e11-8de49c5db970
-rw-r--r--  1 root       root        946 May 30 06:29 38f883dc-4047-4237-a6a1-3ecd77efcde9
-rw-r--r--  1 root       root        946 May 30 06:28 40ae3d28-d67f-453e-895d-0f22b539372c
-rw-r--r--  1 root       root        946 May 30 06:29 4929b73d-cfa4-4246-82a7-4bc8127982f6
-rw-r--r--  1 root       root        946 May 30 06:29 492b4264-fea8-4d52-bbe6-1f15ce72c53a
-rw-r--r--  1 root       root        946 May 30 06:29 493c4f88-5d4d-40e5-8361-fd7d4541441d
-rw-r--r--  1 root       root        946 May 30 06:29 4d2fc2b7-2475-4c6b-97b4-4f896fbe8e9e
-rw-r--r--  1 root       root        946 May 30 06:29 6120f84a-0953-4982-9167-ef872c0ee49a
-rw-r--r--  1 root       root        946 May 30 06:29 633f2c77-9b33-457a-bc3c-919c87d25ca2
-rw-r--r--  1 root       root        946 May 30 06:29 64098702-00d1-4d2e-8d27-4597e100d1c9
-rw-r--r--  1 root       root        946 May 31 03:54 6b3ebc4f-9708-4243-bc21-4c9a01bc3499
-rw-r--r--  1 root       root        946 May 30 06:29 6e21d87b-ea85-420b-8eed-8b14d601438d
-rw-r--r--  1 root       root        946 May 30 06:30 76aa4cfd-a1c7-451a-a11e-a4fabe5ff95b
-rw-r--r--  1 root       root        946 May 30 06:29 8315f008-87e9-4f62-9ae8-1938d7b3f9b2
-rw-r--r--  1 root       root        946 May 30 06:29 8732aed0-273e-49f5-837f-cd9c600bf7b9
-rw-r--r--  1 root       root        946 May 30 06:30 8dba8d47-7890-49d3-8dfa-970e1ec52991
-rw-r--r--  1 root       root        946 May 30 06:30 95c45c33-bd8a-4fae-9718-509c69456abe
-rw-r--r--  1 root       root        946 May 30 06:30 9f9aba4a-f7b1-44d8-859c-c6953027c39e
-rw-r--r--  1 root       root        946 May 30 06:30 9fdedb7f-1bd4-42f6-a7e8-9831df9da8dd
-rw-r--r--  1 root       root        230 May 28 17:54 box
-rw-r--r--  1 root       root        946 May 30 06:30 c3ddc268-deef-49e0-8e3a-97e174cf0594
-rw-r--r--  1 root       root        946 May 30 06:31 c40f9f5f-037c-4a1d-8538-f1f4d4b82f5d
-rw-r--r--  1 root       root        946 May 30 06:32 d3121e48-4196-48fe-907d-ee831e11ce5c
-rw-r--r--  1 root       root        946 May 30 06:32 e18fa18b-b176-4b25-bf78-4d82c022b0f5
-rw-r--r--  1 root       root        946 May 30 06:33 e50f78c7-da6e-4036-a1a3-0cc934448cf1
-rw-r--r--  1 root       root        946 May 30 06:31 ea2ee30a-8d3b-4a3b-8817-19b0f1e17bd7
-rw-r--r--  1 root       root        946 May 30 06:31 ed41aa60-ff4d-4e8e-8796-8c7de4bdf1a9
-rw-r--r--  1 root       root        946 May 30 06:31 f6b21e27-6d25-4c69-a547-0466e622d719
-rw-r--r--  1 root       root       1.1K May 28 17:54 platform

[d19dotca]

This is still an issue by the way. Noticed my disk space accumulating quickly. There's practically no logrotate's configured. Is this due to 6.3 though perhaps?

ubuntu@my:~$ ls -alh /home/yellowtent/platformdata/logrotate.d
total 20K
drwxr-xr-x  2 root       root       4.0K Jun 30 15:28 .
drwxr-xr-x 17 yellowtent yellowtent 4.0K Jun 26 05:05 ..
-rw-r--r--  1 root       root        946 Jun 30 15:28 38f883dc-4047-4237-a6a1-3ecd77efcde9
-rw-r--r--  1 root       root        230 Jun 30 05:05 box
-rw-r--r--  1 root       root       1.1K Jun 30 05:05 platform

ubuntu@my:~$ sudo du -ch -d 1 /home/yellowtent/platformdata/ | sort -hr
4.1G	total
4.1G	/home/yellowtent/platformdata/
2.2G	/home/yellowtent/platformdata/mysql
891M	/home/yellowtent/platformdata/logs
470M	/home/yellowtent/platformdata/graphite
421M	/home/yellowtent/platformdata/mongodb
97M	/home/yellowtent/platformdata/postgresql
54M	/home/yellowtent/platformdata/backup
15M	/home/yellowtent/platformdata/redis
4.0M	/home/yellowtent/platformdata/nginx
192K	/home/yellowtent/platformdata/update
176K	/home/yellowtent/platformdata/collectd
36K	/home/yellowtent/platformdata/addons
16K	/home/yellowtent/platformdata/sftp
16K	/home/yellowtent/platformdata/logrotate.d
8.0K	/home/yellowtent/platformdata/firewall
4.0K	/home/yellowtent/platformdata/acme

To re-iterate, the logrotate files get generated using the workaround of hitting "Save" on the "Locations" tab of each app, but this is a manual process and I now have to do this for about 30 apps, causing a bit of downtime with each one. Then I need to run the logrotate function manually to save the disk space again.

I'm actually a little surprised this would be an issue when all the containers already had to be regenerated as part of the 6.3 upgrade.

@staff - I'm concerned that this defect hasn't been fixed since it was reported quite a while back. Any possibility of getting to the bottom of this one sooner than later?

[d19dotca]

I took the time to manually re-save each app Location tab to recreate the logrotate file as per the workaround, which resulted in a bit of downtime for each app.

I then ran the sudo logrotate -f /home/yellowtent/platformdata/logrotate.d/* command and saved roughly half a GB in logs directory alone (I see the mongodb and graphite folders among others went much smaller too, presumably due to restarting of the apps?). So basically 500 MB in extra logs and that's only on a server that's been running for only about a week, presumably would have grown much further in just another week or two too if the logrotate files weren't regenerated.

I really hope this will be fixed in the next bug-fix release.

ubuntu@my:~$ sudo du -ch -d 1 /home/yellowtent/platformdata/ | sort -hr
3.2G	total
3.2G	/home/yellowtent/platformdata/
2.2G	/home/yellowtent/platformdata/mysql
422M	/home/yellowtent/platformdata/mongodb
229M	/home/yellowtent/platformdata/graphite
171M	/home/yellowtent/platformdata/logs
97M	/home/yellowtent/platformdata/postgresql
54M	/home/yellowtent/platformdata/backup
17M	/home/yellowtent/platformdata/redis
4.0M	/home/yellowtent/platformdata/nginx
192K	/home/yellowtent/platformdata/update
176K	/home/yellowtent/platformdata/collectd
172K	/home/yellowtent/platformdata/logrotate.d
36K	/home/yellowtent/platformdata/addons
16K	/home/yellowtent/platformdata/sftp
8.0K	/home/yellowtent/platformdata/firewall
4.0K	/home/yellowtent/platformdata/acme

[d19dotca]

@girish - I was wanting to follow-up on this. The defect still seems to exist. Right now, despite me running about 41 apps, I only have several in the logrotate.d folder:

ubuntu@my:/home/yellowtent/platformdata$ ls -alh logrotate.d/
total 60K
drwxr-xr-x  2 root       root       4.0K Sep  7 05:00 .
drwxr-xr-x 17 yellowtent yellowtent 4.0K Jun 26 05:05 ..
-rw-r--r--  1 root       root        946 Aug 22 03:43 3167ef7d-e4c2-4072-8e11-8de49c5db970
-rw-r--r--  1 root       root        946 Aug 23 16:40 4929b73d-cfa4-4246-82a7-4bc8127982f6
-rw-r--r--  1 root       root        946 Sep  7 05:00 492b4264-fea8-4d52-bbe6-1f15ce72c53a
-rw-r--r--  1 root       root        946 Sep  4 03:34 684cf8eb-f80c-4304-b97d-ab915a18cfe7
-rw-r--r--  1 root       root        946 Sep  4 23:07 6b3ebc4f-9708-4243-bc21-4c9a01bc3499
-rw-r--r--  1 root       root        946 Aug 19 23:11 7384a604-7a42-4dc7-86eb-d3f6dd2d546b
-rw-r--r--  1 root       root        946 Aug 19 03:25 8dba8d47-7890-49d3-8dfa-970e1ec52991
-rw-r--r--  1 root       root        946 Aug 24 05:48 9c70787a-3529-4b66-be2e-7b1b5aa92b02
-rw-r--r--  1 root       root        946 Aug 19 23:29 b4888539-e835-4f21-97f5-2fc856be6ecf
-rw-r--r--  1 root       root        230 Aug 13 06:39 box
-rw-r--r--  1 root       root        946 Aug 22 03:05 c93cef28-3cc4-42d8-88d5-0f581dff74a2
-rw-r--r--  1 root       root        946 Sep  4 05:00 ea2ee30a-8d3b-4a3b-8817-19b0f1e17bd7
-rw-r--r--  1 root       root       1.1K Aug 13 06:39 platform

[nebulon]

@d19dotca if you reconfigure the location of one of the missing apps, does the logrotate config file show up afterwards? I am wondering if something is purging them after they are created. Looking at the code I cannot spot why it wouldn't create that file.

[d19dotca]

@nebulon Yes, I think I've mentioned that before too. Re-saving from the Location tab on each app regenerates the logrotate file and finally the logrotates will proceed successfully.

I know @girish confirmed that he saw the same behaviour on one of your (or his) servers too. So this definitely seems to be a Cloudron bug that needs fixing.

This issue has been sitting a long time (confirmed/reproduced in February 2021), so hoping this gets resolved soon because this keeps causing issues on my server when it comes to disk space consumption alerts.

[d19dotca]

@nebulon @girish - This is still an issue by the way. Hoping this fix comes soon! I just checked my server after migrating it over the weekend, and I only have 2 apps in the logrotate.d directory. Having to go through 35 apps now to reinitialize that for proper log maintenance.