[dev.icinga.com #14013] icinga2 debian service does not exit after restart if no pseudo terminal is available

[icinga-migration]

This issue has been migrated from Redmine: https://dev.icinga.com/issues/14013

Created by bebehei on 2017-01-14 21:27:14 +00:00

Assignee: (none)
Status: New
Target Version: (none)
Last Update: 2017-01-14 21:27:14 +00:00 (in Redmine)

Icinga Version: 2.6.0
Backport?: Not yet backported
Include in Changelog: 1

---

Hi,

the icinga2 service script does not exit, if there is no pseudo-terminal available.

Although icinga2 is restarted successfully, config-management-jobs like salt '*' service.restart icinga2 (or the ansible analogy) never return.

It does not work on Ubuntu 14.04. It works on Ubuntu 16.04 flawless.

[bebe:~] % ssh -t bernoulli service icinga2 restart
 * checking Icinga2 configuration                                                      [ OK ] 
 * Restarting icinga2 monitoring daemon icinga2                                               [2017-01-14 22:21:02 +0100] information/cli: Icinga application loader (version: r2.6.0-1)
[2017-01-14 22:21:02 +0100] information/cli: Loading configuration file(s).
[2017-01-14 22:21:02 +0100] information/ConfigItem: Committing config item(s).
[2017-01-14 22:21:02 +0100] information/ApiListener: My API identity: bernoulli
[2017-01-14 22:21:02 +0100] information/ConfigItem: Instantiated 1 ApiListener.
[2017-01-14 22:21:02 +0100] information/ConfigItem: Instantiated 2 Zones.
[2017-01-14 22:21:02 +0100] information/ConfigItem: Instantiated 1 FileLogger.
[2017-01-14 22:21:02 +0100] information/ConfigItem: Instantiated 2 Endpoints.
[2017-01-14 22:21:02 +0100] information/ConfigItem: Instantiated 201 CheckCommands.
[2017-01-14 22:21:02 +0100] information/ConfigItem: Instantiated 1 IcingaApplication.
[2017-01-14 22:21:02 +0100] information/ScriptGlobal: Dumping variables to file '/var/cache/icinga2/icinga2.vars'
[2017-01-14 22:21:02 +0100] information/ConfigObject: Restoring program state from file '/var/lib/icinga2/icinga2.state'
[2017-01-14 22:21:02 +0100] information/ConfigObject: Restored 208 objects. Loaded 0 new objects without state.
[2017-01-14 22:21:02 +0100] information/ConfigItem: Triggering Start signal for config items
[2017-01-14 22:21:02 +0100] information/ApiListener: Adding new listener on port '5665'
[2017-01-14 22:21:02 +0100] information/JsonRpcConnection: Reconnecting to API endpoint 'mon' via host 'mon' and port '5665'
[2017-01-14 22:21:02 +0100] information/ConfigItem: Activated all objects.
                                                                                       [ OK ]
Connection to bernoulli.itv.uni-stuttgart.de closed.
[bebe:~] % ssh bernoulli pidof icinga2
18058 18053
[bebe:~] % ssh bernoulli service icinga2 restart
 * checking Icinga2 configuration
   ...done.
 * Restarting icinga2 monitoring daemon icinga2
   ...done.
^CKilled by signal 2.
[bebe:~] 255 % ssh bernoulli pidof icinga2
18278 18273
[bebe:~] %

[dnsmichi]

Sounds familiar to what we've discussed with Stefan a few days ago. Upgrading clients with wheezy or Ubuntu 14.04 did not work out, while other distributions using Systemd worked like a charm. It either is related to the Debian specific init script, or, how we handle closing file descriptors on restart.

[bebehei]

It either is related to the Debian specific init script, or, how we handle closing file descriptors on restart.

After experiencing this issue, I researched the initscripts. And IIRC, there had been no change in the debian init-script with an obvious relation to this.

[AlexanderS]

Yes, it has nothing to do with the init script. The file descriptors or not closed on startup/restart. See also #5038 for some analysis.

[dnsmichi]

Ah, that was the missing issue link, thanks 👍