nscd.service fails after suspend

[pinpox]

Describe the bug

After waking up from systemctl suspend the unit nscd.service is in a failed state

Dec 02 18:25:58 ahorn nscd[444566]: 444566 monitored file `/etc/resolv.conf` was written to
Dec 02 18:25:58 ahorn systemd[1]: Stopping Name Service Cache Daemon...
Dec 02 18:25:58 ahorn systemd[1]: nscd.service: Deactivated successfully.
Dec 02 18:25:58 ahorn systemd[1]: Stopped Name Service Cache Daemon.
Dec 02 18:25:58 ahorn systemd[1]: nscd.service: Consumed 16ms CPU time, received 260B IP traffic, sent 150B IP traffic.
Dec 02 18:25:58 ahorn systemd[1]: Starting Name Service Cache Daemon...
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring file `/etc/passwd` (1)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring directory `/etc` (2)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring file `/etc/group` (3)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring directory `/etc` (2)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring file `/etc/hosts` (4)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring directory `/etc` (2)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring file `/etc/resolv.conf` (5)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring directory `/etc` (2)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring file `/etc/services` (6)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring directory `/etc` (2)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring file `/etc/netgroup` (7)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring directory `/etc` (2)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring file `/etc/nsswitch.conf` (8)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring directory `/etc` (2)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring file `/etc/nsswitch.conf` (8)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring directory `/etc` (2)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring file `/etc/nsswitch.conf` (8)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring directory `/etc` (2)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring file `/etc/nsswitch.conf` (8)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring directory `/etc` (2)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring file `/etc/nsswitch.conf` (8)
Dec 02 18:25:58 ahorn nscd[444792]: 444792 monitoring directory `/etc` (2)
Dec 02 18:25:58 ahorn systemd[1]: Started Name Service Cache Daemon.
Dec 02 18:26:00 ahorn nscd[444792]: 444792 monitored file `/etc/resolv.conf` was written to
Dec 02 18:26:00 ahorn systemd[1]: Stopping Name Service Cache Daemon...
Dec 02 18:26:00 ahorn systemd[1]: nscd.service: Deactivated successfully.
Dec 02 18:26:00 ahorn systemd[1]: Stopped Name Service Cache Daemon.
Dec 02 18:26:00 ahorn systemd[1]: nscd.service: Consumed 16ms CPU time, received 734B IP traffic, sent 476B IP traffic.
Dec 02 18:26:00 ahorn systemd[1]: nscd.service: Start request repeated too quickly.
Dec 02 18:26:00 ahorn systemd[1]: nscd.service: Failed with result 'start-limit-hit'.
Dec 02 18:26:00 ahorn systemd[1]: Failed to start Name Service Cache Daemon.

×  systemctl list-units --failed
  UNIT         LOAD   ACTIVE SUB    DESCRIPTION
● nscd.service loaded failed failed Name Service Cache Daemon

LOAD   = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type.
1 loaded units listed.

Restarting the unit manually with systemctl restart nscd.service fixes the problem until the next suspend.

Steps To Reproduce

Steps to reproduce the behavior:

1. systemctl suspend
2. systemctl list-units --failed

Expected behavior

Unit not failed after syspend or restart happens automatically

Notify maintainers

@flokli @jameysharp

Metadata

Please run nix-shell -p nix-info --run "nix-info -m" and paste the result.

 - system: `"x86_64-linux"`
 - host os: `Linux 5.10.81, NixOS, 22.05 (Quokka)`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.4`
 - channels(root): `""`
 - channels(pinpox): `"home-manager"`
 - nixpkgs: `/nix/store/15aj5hdp6rcwambcgwyva0x82dra3m3w-source`

Maintainer information:

# a list of nixpkgs attributes affected by the problem
attribute:
# a list of nixos modules affected by the problem
module:
  - nscd

[pinpox]

Is there any additional information I can provide to fix this? The error is still present.

[pinpox]

Pinging @abbradar as you where the last one editing the service file. Any ideas how to fix this?

[pacien]

I'm also experiencing the same issue on NixOS 21.11 at boot, not just when
resuming after suspending. Same output in the logs.

[flokli]

You might be interested in trying #135888 (comment).

[flokli]

nixpkgs master switched to nsncd, which shouldn't have these issues anymore. Please reopen if this is still a problem with nsncd, or if you need to stick with glibc nscd for some reason.