perfSONAR User Q&A and Other Discussion

[Mark Foster <>]

Winnie 
()
 pointed out that ndt services had mysteriously been restarted, and
tracked down the restart to the logrotate script.

In /etc/logrotate.d/ndt, there is a line

         /sbin/service ndt restart > /dev/null 2>/dev/null || true

I note that neither the logrotate nor the /etc/init.d/ndt script have any
detection for if the service has been disabled (e.g., by the perfsonar GUI).
I put in a check in the /etc/init.d/ndt script (see diff below) on one of my
perfsonar boxes. This avoids starting/restarting the service if it's been
disabled.

*** ndt.dist    2014-12-16 12:50:42.454381680 -0800
--- ndt 2015-02-20 12:15:44.756357381 -0800
***************
*** 125,130 ****
--- 125,137 ----
        start
  }

+ # if ndt isn't enabled (on) for any runlevel, just exit
+ ndtenab=`chkconfig --list ndt 2>/dev/null | grep on | wc -l`
+ if [ $ndtenab -eq 0 ]; then
+         echo "ndt not enabled (run 'chkconfig --add ndt')"
+       exit 1
+ fi
+
  case "$1" in
  start)
     start




On 2/9/2015 12:36 PM, Mark Foster wrote:
> Winnie -
>
> I noticed a similar issue on some of my 3.4 systems.
> I used the GUI, did an "enable" of NDT, followed by a save, then a "disable" 
> of NDT followed by a save. Following this action, the ndt/fakewww daemon wasn't in service, and 
> stayed shutdown following a reboot.
>
> For the problems you note in the cron-service_watcher scripts, try adding to 
> the top
> of /etc/cron.d/cron-service_watcher
>
> PATH=/sbin:/bin:/usr/sbin:/usr/bin
>
> That worked for me.
>
> -- Mark
>
> On 2/9/2015 7:35 AM, Winnie Lacesso wrote:
> > On Mon, 9 Feb 2015, Aaron Brown wrote:
> > > Hey Winnie,
> > > Could you send /var/log/perfsonar/service_watcher_error.log?
> >
> > Ah yes I had a question about that logfile...... on both Bw+Lat it's
> > overwritten once an hour by  /etc/cron.d/cron-service_watcher that runs
> >
> > root /opt/perfsonar_ps/toolkit/scripts/service_watcher &> 
> > /var/log/perfsonar/service_watcher_error.log
> >
> > output = 11 identical lines in /var/log/perfsonar/service_watcher_error.log
> >
> > Can't exec "runlevel": No such file or directory at 
> > /opt/perfsonar_ps/toolkit/scripts/../lib/perfSONAR_PS/NPToolkit/Services/Base.pm line 
> > 147.