How do I limit the size of diskspace for log files of RevPiModIO?

[Peter_Platzer]

Dear All!

I am running into the issue of big Logfiles of RevPiModIO which fills up var/log/ on my RevPi.
It looks like it had something to do with changing the logfile.

End of last log:

Code: Select all

--2024-11-17 00:00:08--  https://apis.smartenergy.at/market/v1/price
Resolving apis.smartenergy.at (apis.smartenergy.at)... 193.186.222.188
Connecting to apis.smartenergy.at (apis.smartenergy.at)|193.186.222.188|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [application/json]
Saving to: ‘/var/log/www/html/price_download.html’

     0K ....                                                    112M=0s

2024-11-17 00:00:08 (112 MB/s) - ‘/var/log/www/html/price_download.html’ saved [5054]

--2024-11-17 00:00:12--  https://api.awattar.at/v1/marketdata
Resolving api.awattar.at (api.awattar.at)... 35.244.230.217
Connecting to api.awattar.at (api.awattar.at)|35.244.230.217|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 3515 (3.4K) [application/json]
Saving to: ‘/var/log/www/html/backup_price_download.html’

     0K ...                                                   100% 2.21M=0.002s

2024-11-17 00:00:12 (2.21 MB/s) - ‘/var/log/www/html/backup_price_download.html’ saved [3515/3515]

Start of new Log:

Code: Select all

-------------------------------------------------------
start new logfile: Sun Nov 17 00:00:33 2024
/usr/lib/python3/dist-packages/revpimodio2/helper.py:627: RuntimeWarning: io refresh time of 20 ms exceeded!
  warnings.warn(
/usr/lib/python3/dist-packages/revpimodio2/helper.py:627: RuntimeWarning: io refresh time of 20 ms exceeded!
  warnings.warn(
/usr/lib/python3/dist-packages/revpimodio2/helper.py:627: RuntimeWarning: io refresh time of 20 ms exceeded!
  warnings.warn(
--2024-11-17 01:00:10--  https://apis.smartenergy.at/market/v1/price
Resolving apis.smartenergy.at (apis.smartenergy.at)... 193.186.222.188
Connecting to apis.smartenergy.at (apis.smartenergy.at)|193.186.222.188|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [application/json]
Saving to: ‘/var/log/www/html/price_download.html’

     0K ....                                                    121M=0s

2024-11-17 01:00:11 (121 MB/s) - ‘/var/log/www/html/price_download.html’ saved [5054]

--2024-11-17 01:00:14--  https://api.awattar.at/v1/marketdata
Resolving api.awattar.at (api.awattar.at)... 35.244.230.217
Connecting to api.awattar.at (api.awattar.at)|35.244.230.217|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 3371 (3.3K) [application/json]
Saving to: ‘/var/log/www/html/backup_price_download.html’

     0K ...                                                   100% 1.91M=0.002s

2024-11-17 01:00:14 (1.91 MB/s) - ‘/var/log/www/html/backup_price_download.html’ saved [3371/3371]

/usr/lib/python3/dist-packages/revpimodio2/helper.py:627: RuntimeWarning: io refresh time of 20 ms exceeded!
  warnings.warn(
/usr/lib/python3/dist-packages/revpimodio2/helper.py:627: RuntimeWarning: io refresh time of 20 ms exceeded!
  warnings.warn(
/usr/lib/python3/dist-packages/revpimodio2/helper.py:627: RuntimeWarning: io refresh time of 20 ms exceeded!
  warnings.warn(
/usr/lib/python3/dist-packages/revpimodio2/helper.py:627: RuntimeWarning: io refresh time of 20 ms exceeded!
  warnings.warn(

The log message:

Code: Select all

/usr/lib/python3/dist-packages/revpimodio2/helper.py:627: RuntimeWarning: io refresh time of 20 ms exceeded!"

filled up the log file revpipyloadapp within 15 minutes to a size of 20 MB and I ran out of space on /var/log

Normally I do not see exceeding the 20 ms after downloading the files.
If it appears it happens maybe 1 or 2 times.

Is there a way to limit the size of log files?
What is the strategy of changing the log files?

Code: Select all

start new logfile: Sun Nov  3 00:00:33 2024
start new logfile: Sun Nov 10 00:00:33 2024
start new logfile: Sun Nov 17 00:00:33 2024

It looks like it is timebased every week.

Is it possible to change that?

Please give me some hints how to solve this issue.

Thanks!

BR
Peter

[RevPiModIO]

I suspect that a Bookworm image is being used where `logrotate` has not yet been installed.

Normally, log files, including those from RevPiPyLoad, are processed by `logrotate`. There have been versions of Bookworm images where the package was missing.

`logrotate` can be easily installed on the system using the command `apt-get install logrotate`.