Forum Discussion

KirillKrotov's avatar
KirillKrotov
Level 4
7 years ago

Unable to change NumberOfLogFiles option using vxlogcfg

Greetings!  I want to set maximum count of unified log files for nbsl process. I used following command: vxlogcfg -a -p 51216 -o 132 -s NumberOfLogFiles=15 At that time count of these was 8. But n...
8
Linux
  • Amol_Nair's avatar
    Amol_Nair
    7 years ago

    KirillKrotov

    Just verified it. Setting up vx logs does not require any restart of NBU services. But unfortunately we changed other parameters as well i.e. LogRecycle=true. Changing this parameter would take into effect only after a restart of NetBackup services not prior to that

Amol_Nair's avatar
Amol_Nair
Level 6
Try this and see if it helps you out

vxlogcfg -a --prodid 51216 --orgid 132 -s
RolloverMode=FileSize MaxLogFileSizeKB=512000
NumberOfLogFiles=15 LogRecycle=TRUE
Marianne's avatar
Marianne
Level 6
7 years ago

Amol_Nair

Do you know if cleanup of Unified logs are also linked to the 12-hourly cleanup cycle on the master? 

  • Amol_Nair's avatar
    Amol_Nair
    Level 6
    7 years ago

    Marianne

    The cleanup of logs does not really follow the 12 hour interval as for the normal image cleanup sessions running in the background.

    It works more on a day to day basis. Every day at midnight or a few minutes over midnight, bprd makes a call to attempt to cleanup logs. If its just client then you would see something like - "bpclntcmd -clean_old_logs" running on the client machine. One of the hidden switches in bpclntcmd cli to cleanup logs 
    The parent bprd process forks a child which in turn loops through the server list (and the media_server list). It then makes a call to - " recycle debug logs on server <remote_server>"

    The bpcd logs should show messages similar to below
    bprd -dontfork -keeplogs <kp_value> -recycle_server <master_server>

    The <kp_value> is from the global configuration on the master.


    LogRecycle for unified logs is added to enable/disable log recycling for given originator. If enabled, log recycling will occur at the time of rollover.
    If number of log files reach NumberOfLogfiles+1, oldest log file will be removed and new log file will be created.

    If rollover policy is set to FileSize, logs should never use disk space more than (NumberOfLogFiles+1)*MaxLogFileSizeKB.

    At the backend unified logs would be cleared off via the vxlogmgr command.


    One of the old technotes in regards to these parameters for reference
    https://www.veritas.com/support/en_US/article.100017250

    Just noticed that in my previous post while adding it using my phone I did miss out of a couple of -s entries per option.

    KirillKrotov The exact command above would be as below

    vxlogcfg -a --prodid 51216 --orgid 132 -s RolloverMode=FileSize -s MaxLogFileSizeKB=512000 -s NumberOfLogFiles=15 -s LogRecycle=True

    • KirillKrotov's avatar
      KirillKrotov
      Level 4
      7 years ago

      Amol_Nair 

      I have used this command but i have the same result. 

      Work it only after restart the server or it change settings on the go?

      • Amol_Nair's avatar
        Amol_Nair
        Level 6
        7 years ago
        KirillKrotov,
        Sorry to get back so late..
        hope the command ran successfully and you saw the output as well stating that the command completed successfully..

        Ideally a service restart was only required in older Nbu versions.. not in the later versions..
        But ofcourse if either there are any hung processes then yes a service restart would be helpful

        Could you post a copy of the nblog.conf file from the system

        Meanwhile to have the files cleaned up manually you can use -vxlogmgr -d -o nbsl”

        This would delete only the nbsl logs, If you need to run it for all unified logs you can use “vxlogmgr -d”
        There are extra switches to give specific start and end dates as well if required