System Log - Deleted

[Nubble]

I must have inadvertently clicked "Clear" on the system log GUI page at some earlier point as when I went to view it much of it had disappeared. I lost valuable troubleshooting information as a result of that mistake. (I honestly don't recall doing this.) I was able to recover the syslog.log-1 portion from the /jffs partition as I run a cron script which saves newly created syslog.log-1 files to a USB stick but that obviously was of no help with the current syslog.log file itself. Is there any way to disable the Clear function (or at least get a warning prompt) possibly through a script or system setting? I'm assuming this a long shot but thought I would ask.

 

[thelonelycoder]

The Clear button only clears the UI display and does not delete entries in the logfile.
Your logfile was deleted/recreated for another reason.

 

[Nubble]

The Clear button only clears the UI display and does not delete entries in the logfile.
Your logfile was deleted/recreated for another reason.

This is certainly possible however as a test, I clicked "Clear" in the UI and indeed syslog.log (and apparently syslog.log-1) was deleted from the /tmp directory. If I issue a process (PS) command for syslogd I don't see anything that implies a reset, but output from this command is limited. Any other thoughts appreciated.

 

[thelonelycoder]

This is certainly possible however as a test, I clicked "Clear" in the UI and indeed syslog.log (and apparently syslog.log-1) was deleted from the /tmp directory. If I issue a process (PS) command for syslogd I don't see anything that implies a reset, but output from this command is limited. Any other thoughts appreciated.

If I inspect the html code, I see no such delete function.

 

[RMerlin]

If I inspect the html code, I see no such delete function.

The HTML cannot do anything since it's client-side, not server side. Clicking on "Clear" sets action_mode to " Clear ", and sends it back to the router in a POST, which instructs httpd to the logs:

https://github.com/RMerl/asuswrt-merlin/blob/master/release/src/router/httpd/web.c#L7400

 

[thelonelycoder]

The HTML cannot do anything since it's client-side, not server side. Clicking on "Clear" sets action_mode to " Clear ", and sends it back to the router in a POST, which instructs httpd to the logs:

https://github.com/RMerl/asuswrt-merlin/blob/master/release/src/router/httpd/web.c#L7400

As always, you are correct.
There is a copy of the syslog with delayed writing in jffs I was looking at when clearing the log in the WebUI.
The jffs syslog may retain the info OP is looking after.