Server auto-suspend?

[Muttley99]

Got the config file working okay again, NAS suspends as normal after inactivity
Also, my screen corruption on startup seems to be fixed by adding 'pm-suspend --quirk-s3-mode' to the action file
I ssh to the NAS and checked it didn't suspend; this worked!
I have my Kubuntu desktop mounted nfs shares from the NAS, after adding 'nfsd' to the config file, NAS still suspended even when I accessed the shares from the client!
I don't understand why nfs shares are not preventing suspend! any ideas?

[fkjensen]

Muttley, which processes do you monitor?

~Frank

[Muttley99]

I've just got smbd and ssh at the moment. I had nfsd in the list but this didn't work. I'm wondering if I place the path to nfsd in the config file it may work? I biggest problem I find here is there is little or no documentation for PowerNap available. Maybe I could try adding an alias to the config file and listing nfsd as normal? what do you think?

[Muttley99]

looks like I need to specify the path:-

Sample Configuration

In the Ubuntu Enterprise Cloud case, the configuration file, /etc/powernap/config, might look something like:

MONITORED_PROCESSES = [ "^/usr/bin/kvm " ]
ABSENT_SECONDS = 300
GRACE_SECONDS = 60

Thus, if no instance of kvm runs for 5 minutes, then the system will emit a warning, and powernap after a 1 minute grace period.

[drejom]

Hi,

I'm trying to set this up in a desktop system, but it seems not to be noticing my usb mouse/keystrokes and suspending mid-use. As far as i can tell, powernap is only monitoring /dev/ptmx, the pseudo-terminal. My mouse/keyboard are usb devices (/dev/usb/hiddev). Is there anyway to have it monitor other /dev files for activity or should this go as a feature request on launchpad?
Cheers
Drejom

[JvdBosch]

I've been following this topic as I too have build a NAS/FTP/Squeezebox server. I'm having trouble with setting up powernap, because of the monitored processes. I've set these processes:

MONITORED_PROCESSES = [ "smbd", "sshd: .*\[priv\]$" , "proftpd" , "webmin/miniserv.pl", "sabnzbdplus" ]

But a lot of them remain active even though there's no activity. Samba for example.

[2010-01-20 10:03:43] Examining process table
[2010-01-20 10:03:43]   Looking for [smbd]
[2010-01-20 10:03:43]     Process found, reset absent time [0/300]
[2010-01-20 10:03:43]   Looking for [sshd: .*\[priv\]$]
[2010-01-20 10:03:43]     Process found, reset absent time [0/300]
[2010-01-20 10:03:43]   Looking for [proftpd]
[2010-01-20 10:03:43]     Process not found, increment absent time [954/300]
[2010-01-20 10:03:43]     Process absent for >= threshold, so mark absent
[2010-01-20 10:03:43]   Looking for [webmin/miniserv.pl]
[2010-01-20 10:03:43]     Process found, reset absent time [0/300]
[2010-01-20 10:03:43]   Looking for [sabnzbdplus]
[2010-01-20 10:03:43]     Process not found, increment absent time [954/300]
[2010-01-20 10:03:43]     Process absent for >= threshold, so mark absent

How did you guys solve this? Can we have powernap check if a process is alive AND active?

[nazz7707]

have you looked at the SBC SrvrPowerCtrl plugin? All suspend / hibernate / wol options are available and it works like a charm....

[wanky]

I've been following this topic as I too have build a NAS/FTP/Squeezebox server. I'm having trouble with setting up powernap, because of the monitored processes. I've set these processes:

MONITORED_PROCESSES = [ "smbd", "sshd: .*\[priv\]$" , "proftpd" , "webmin/miniserv.pl", "sabnzbdplus" ]

But a lot of them remain active even though there's no activity. Samba for example.

[2010-01-20 10:03:43] Examining process table
[2010-01-20 10:03:43]   Looking for [smbd]
[2010-01-20 10:03:43]     Process found, reset absent time [0/300]
[2010-01-20 10:03:43]   Looking for [sshd: .*\[priv\]$]
[2010-01-20 10:03:43]     Process found, reset absent time [0/300]
[2010-01-20 10:03:43]   Looking for [proftpd]
[2010-01-20 10:03:43]     Process not found, increment absent time [954/300]
[2010-01-20 10:03:43]     Process absent for >= threshold, so mark absent
[2010-01-20 10:03:43]   Looking for [webmin/miniserv.pl]
[2010-01-20 10:03:43]     Process found, reset absent time [0/300]
[2010-01-20 10:03:43]   Looking for [sabnzbdplus]
[2010-01-20 10:03:43]     Process not found, increment absent time [954/300]
[2010-01-20 10:03:43]     Process absent for >= threshold, so mark absent

How did you guys solve this? Can we have powernap check if a process is alive AND active?

Having the same issue with powernap. Anybody have solved it yet?

Cheers
wanky

[rodgull]

All,

Not sure if anyone is still looking at this thread, but I have been looking through the powernap launchpad site and found a patch that Konrad Klimaszewski has added which adds MONITORED_IO_PROCESS, which checks that the process is actually active, as well as present.

I believe this is what is needed (for me too!). Reading through the actual patch, the examples are for samba, nfs and lighttpd.

see https://bugs.launchpad.net/powernap/+bug/531773

Now we just need Dustin to merge the changes....

Rod

[rodgull]

Also, powernap uses the command

ps -eo args

as the list to compare against the MONITORED_PROCESSES config list.

Hence running that command on your system will show how the processes appear to powernap.

Enjoy,
Rod