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aks-2's avatar
aks-2
Apprentice
Aug 25, 2021
Solved

Correct way to delete all logs

I am downloading the full logs from the ReadyNAS 214 dashboard. After that, I 'clear logs', which does remove all entries displayed on the dashboard. However, I noticed that many logs remain intact on the system if I ssh in and poke around, particularly the backup log files in /var/log/frontview/backup/. Various system logs also are not cleared.

 

This leads me to wonder what is the correct way of clearing out all logs then?

 


  • aks-2 wrote:

    I am not so worried about free space, just want to avoid issues later - so this is just maintenance:

    > df
    Filesystem      1K-blocks       Used  Available Use% Mounted on
    udev                10240          4      10236   1% /dev
    /dev/md0          3862208     629072    3007244  18% /
    tmpfs             1032992         12    1032980   1% /dev/shm
    tmpfs             1032992        664    1032328   1% /run
    tmpfs              516500       1656     514844   1% /run/lock
    tmpfs             1032992          0    1032992   0% /sys/fs/cgroup
    /dev/md125     8775854208 5654598068 3119758764  65% /data

    Well, you could clear things out more completely with journalctl.  But maybe first use journalctl --disk-usage to see how much space you are actually talking about.  My logs haven't been cleared for quite a while, and I am still only using 36 MB.

     

    If you do want want to empty them more agressively, you'd use journalctl --rotate followed by journalctl --vacuum-time=1s.  But personally I'd just leave well enough alone.

     

     

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  • StephenB's avatar
    StephenB
    Guru - Experienced User

    aks-2 wrote:

    I am downloading the full logs from the ReadyNAS 214 dashboard. After that, I 'clear logs', which does remove all entries displayed on the dashboard. However, I noticed that many logs remain intact on the system if I ssh in and poke around, particularly the backup log files in /var/log/frontview/backup/. Various system logs also are not cleared.

     


    Clear logs clears more than what is on the dashboard.  Backup jobs are cleared using the control in the backup job setting (there is  clear log on the logs page).

     

    What system logs are you seeing?  The NAS logs in the zip are mostly generated on the fly from journalctl, and don't exist as separate files.

     

     

    • aks-2's avatar
      aks-2
      Apprentice

      Yes I can clear each backup log, one by one, from the backup jobs list. That's fine, thanks.

       

      I notice the other system logs, e.g. smbd.log, contains data from a year ago, i.e. not 'cleared':

       

      [2020/10/03 16:15:49.760477,  0] ../lib/util/become_daemon.c:136(daemon_ready)
        daemon_ready: daemon 'smbd' finished starting up and ready to serve connections

      There are several growing logs, which was an issue in the days past with older Duo/NV+ v2, etc (I recall), so just wondering how to manage these logs to avoid disks filling up with stuff no longer needed?

      • StephenB's avatar
        StephenB
        Guru - Experienced User

        aks-2 wrote:

         

        I notice the other system logs, e.g. smbd.log, contains data from a year ago, i.e. not 'cleared':

         


        There is no smbd.log file on my system.

         

        Are you finding this with ssh?  If so, was rsyslog installed on your system?

         


        aks-2 wrote:

        There are several growing logs, which was an issue in the days past with older Duo/NV+ v2, etc (I recall), so just wondering how to manage these logs to avoid disks filling up with stuff no longer needed?


        How full is your OS partition?

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