GNU bug report logs

#36855 'guix system switch-generation' does not reload Shepherd services

PackageSource(s)Maintainer(s)
guix PTS Buildd Popcon
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Subject: guix system switch-generation doesn't
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Date: Tue, 30 Jul 2019 12:00:23 +0200
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What I see:

1. edit ~/pzprnode/pzprnode

rob@garp ~/pzprnode$ git diff
diff --git a/pzprnode b/pzprnode
index 612e6a8..d8ef0ea 100755
--- a/pzprnode
+++ b/pzprnode
@@ -190,5 +190,6 @@ const server = http.createServer((req, res) => {
 });
 
 server.listen(port, hostname, () => {
+       console.log("updated version");
        console.log(`Server running at http://${hostname}:${port}/`);
 });

2. sudo guix system reconfigure -L ~/garp-config ~/garp-config/config.scm
3. sudo herd restart pzprnode
4. less /var/log/messages

Jul 30 11:46:57 localhost shepherd[1]: Service pzprnode has been stopped. 
Jul 30 11:46:57 localhost shepherd[1]: Service pzprnode has been started. 
Jul 30 11:46:58 localhost pzprnode[4954]: updated version 
Jul 30 11:46:58 localhost pzprnode[4954]: Server running at http://127.0.0.1:3456/ 

5. sudo guix system list-generations

Generation 151	Jul 30 2019 10:37:06
  file name: /var/guix/profiles/system-151-link
  canonical file name: /gnu/store/jis33accsfpa068aps0a9mrycmjzfm4m-system
  label: GNU with Linux-Libre 5.2.1
  bootloader: grub
  root device: label: "guix-root"
  kernel: /gnu/store/fp6wsvn10h1is0wkz8l2sbzjmjbzi7vr-linux-libre-5.2.1/bzImage
Generation 152	Jul 30 2019 11:43:13	(current)
  file name: /var/guix/profiles/system-152-link
  canonical file name: /gnu/store/3z3wmaj0399kihqc372y91nzcjxc1myl-system
  label: GNU with Linux-Libre 5.2.1
  bootloader: grub
  root device: label: "guix-root"
  kernel: /gnu/store/fp6wsvn10h1is0wkz8l2sbzjmjbzi7vr-linux-libre-5.2.1/bzImage

6. sudo guix system switch-generation 151

substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
The following derivation will be built:
   /gnu/store/qvxbl3gm6406dbbkm8jigmpc8zi42lfw-grub.cfg.drv
building /gnu/store/qvxbl3gm6406dbbkm8jigmpc8zi42lfw-grub.cfg.drv...
switched from generation 152 to 151

7. sudo herd restart pzprnode
8. less /var/log/messages

Jul 30 11:48:02 localhost shepherd[1]: Service pzprnode has been stopped. 
Jul 30 11:48:02 localhost shepherd[1]: Service pzprnode has been started. 
Jul 30 11:48:03 localhost pzprnode[4994]: updated version 
Jul 30 11:48:03 localhost pzprnode[4994]: Server running at http://127.0.0.1:3456/ 

The line with “updated version” should not be there.

Presumably, this is due to switch-generations not calling upgrade-shepherd-services.

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