[Nut-upsuser] What is the meaning of ups.delay.*

[Jim Klimov]

Sorry, I'm commuting now so will be concise :)

Q1: definitions we aim to uphold are at
https://networkupstools.org/docs/developer-guide.chunked/_variables.html

Q2: CUPS is Printing Service, see SAMBA. Not NUT :)

Hope this helps,
Jim Klimov


On Sat, Aug 22, 2026, 11:19 Eyal Lebedinsky via Nut-upsuser <
nut-upsuser at alioth-lists.debian.net> wrote:

> Q1) Where can I find a clear definition of the following attributes:
>         ups.delay.shutdown: 20
>         ups.delay.start: 30
> If it matters, the UPS is
>         device.mfr: EATON
>         device.model: Ellipse MAX 1500
>
> See a second question (Q2) at the end of this report.
>
> There was a power failure when I was not present.
>         Aug 22 14:10:45 e7 nut-monitor[3158]: UPS ups at ups on battery
>         Aug 22 14:33:07 e7 nut-server[3152]: Data for UPS [ups] is stale -
> check driver
>         Aug 22 14:33:12 e7 nut-monitor[3158]: Communications with UPS
> ups at ups lost
>         Aug 22 14:33:32 e7 nut-monitor[3158]: Exiting upsmon program after
> initiating shutdown
>         Aug 22 14:33:27 e7 nut-monitor[3158]: Executing automatic
> power-fail shutdown
>         ...
>         Aug 22 14:33:45 e7 systemd-journald[556]: Journal stopped
>
> I assume that the server was shut down at this point, until I booted it
>         Aug 22 15:25:36 e7 kernel: Command line:
> BOOT_IMAGE=(hd0,msdos1)/vmlinuz-7.1.8-200.fc44.x86_64 ...
>
> When shut down the ups reported 38% charge. When it booted the ups
> reported zero charge.
> ups capacity is logged every minute:
>         20260822141100 100
>         20260822141200 97       wall power lost
>         ...
>         20260822143200 40
>         20260822143300 38       machine shuts down
>         20260822152600 0        machine booted
>         20260822152700 1
>
> What is the relationship between the battery charge and the timing of the
> shutdown.
> Maybe it is related to the UPS not sending data, which triggers the
> shutdown?
>
> The status of the UPS now (over 3.5h since charging started) is:
>
> $ date ; upsc ups
> Sat Aug 22 19:00:00 AEST 2026
> battery.charge: 87
> battery.charge.low: 20
> battery.runtime: 1745
> battery.type: PbAc
> device.mfr: EATON
> device.model: Ellipse MAX 1500
> device.serial: ADYL1000H
> device.type: ups
> driver.debug: 0
> driver.flag.allow_killpower: 0
> driver.name: usbhid-ups
> driver.parameter.interrupt_pipe_no_events_tolerance: -1
> driver.parameter.pollfreq: 30
> driver.parameter.pollinterval: 2
> driver.parameter.port: auto
> driver.parameter.synchronous: auto
> driver.state: updateinfo
> driver.version: 2.8.5
> driver.version.data: MGE HID 1.58
> driver.version.internal: 0.71
> driver.version.usb: libusb-1.0.30 (API: 0x0100010C)
> input.sensitivity: low
> input.transfer.boost.low: 185
> input.transfer.high: 285
> input.transfer.low: 150
> input.transfer.trim.high: 265
> input.voltage.extended: yes
> outlet.1.desc: PowerShare Outlet 1
> outlet.1.id: 2
> outlet.1.status: on
> outlet.1.switchable: no
> outlet.desc: Main Outlet
> outlet.id: 1
> outlet.switchable: no
> output.frequency.nominal: 50
> output.voltage: 230.0
> output.voltage.nominal: 230
> ups.beeper.status: enabled
> ups.delay.shutdown: 20
> ups.delay.start: 30
> ups.firmware: 5102AH
> ups.load: 6
> ups.mfr: EATON
> ups.model: Ellipse MAX 1500
> ups.power.nominal: 1500
> ups.productid: ffff
> ups.realpower: 72
> ups.serial: ADYL1000H
> ups.status: OL CHRG
> ups.timer.shutdown: -1
> ups.timer.start: -1
> ups.vendorid: 0463
>
> Q2) Probably related but also maybe expected. During shutdown I see this
> in the system log:
>
> Aug 22 14:33:36 e7 systemd[1]: Stopping cups.service - CUPS Scheduler...
> Aug 22 14:33:36 e7 cupsd[1467]: malloc(): smallbin double linked list
> corrupted
> Aug 22 14:33:36 e7 audit[1467]: ANOM_ABEND auid=4294967295 uid=0 gid=0
> ses=4294967295 subj=kernel pid=1467 comm="cupsd" exe="/usr/bin/cupsd" sig=6
> res=1
> Aug 22 14:33:36 e7 systemd-coredump[3739844]: Process 1467 (cupsd) of user
> 0 terminated abnormally with signal 6/ABRT, processing...
> Aug 22 14:33:36 e7 kernel: audit: type=1701 audit(1787373216.957:17617):
> auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=1467
> comm="cupsd" exe="/usr/bin/cupsd" sig=6 res=1
>
> I am running
>         nut.x86_64 2.8.5-3.fc44 updates
> kernel
>         7.1.8-200.fc44.x86_64
>
> --
> Eyal at Home (eyal at eyal.emu.id.au)
>
>
> _______________________________________________
> Nut-upsuser mailing list
> Nut-upsuser at alioth-lists.debian.net
> https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/nut-upsuser
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://alioth-lists.debian.net/pipermail/nut-upsuser/attachments/20260822/c098554e/attachment.htm>