[MultiOS][Yocto] collectd.service failed to start after unlock

[Jackie Huang]

Brief Description
-----------------
collectd.service failed to start after unlock and the system is in degraded state.

Severity
--------
Provide the severity of the defect.
<Major: System/Feature is usable but degraded>

Steps to Reproduce
------------------
1. build the image according to https://opendev.org/starlingx/meta-starlingx/src/branch/master/README.md
2. Install AIO simplex with the built out image
3. run ansiple playbootk and unclock
4. Check the system status after unlock

Expected Behavior
------------------
collectd.service should be started and system is in available state

Actual Behavior
----------------

[root@controller-0 ~(keystone_admin)]# system host-list
+----+--------------+-------------+----------------+-------------+--------------+
| id | hostname | personality | administrative | operational | availability |
+----+--------------+-------------+----------------+-------------+--------------+
| 1 | controller-0 | controller | unlocked | enabled | degraded |
+----+--------------+-------------+----------------+-------------+--------------+

controller-0:~$ systemctl status collectd
â collectd.service - Collectd statistics daemon and extension services
   Loaded: loaded (/etc/systemd/system/collectd.service; enabled; vendor preset: enabled)
   Active: failed (Result: signal) since Tue 2020-09-29 03:36:31 UTC; 37min ago
     Docs: man:collectd(1)
           man:collectd.conf(5)
  Process: 377267 ExecStart=/usr/sbin/collectd (code=killed, signal=KILL)
  Process: 377453 ExecStartPost=/bin/bash -c echo $MAINPID > /var/run/collectd.pid (code=exited, status=0/SUCCESS)
  Process: 377490 ExecStopPost=/bin/rm -f /var/run/collectd.pid (code=exited, status=0/SUCCESS)
 Main PID: 377267 (code=killed, signal=KILL)
      CPU: 999ms

Reproducibility
---------------
Reproducible

System Configuration
--------------------
One node system, All-in-one simplex

Branch/Pull Time/Commit
-----------------------
Branch: master
Time: Sep 25 2020
Commit: 595181564502bc04028132b3af68ff551b6cbe47

Last Pass
---------

Timestamp/Logs
--------------

Test Activity
-------------

Workaround
----------

[Jackie Huang (jackie-huang)]

Root cause: the path /bin/systemctll is incorrect
user.log:2020-09-29T04:21:47.000 controller-0 collectd[544571]: info [544571.45216] controller-0 pmond mon pmonHdlr.cpp (1246) respawn_process : Info : Service:collectd
user.log:2020-09-29T04:21:47.000 controller-0 collectd[544571]: warning collectd recovery failed with method '/etc/systemd/system/collectd.service': (/bin/systemctll restart ) (2:No such file or directory)

[Jackie Huang (jackie-huang)]

Review:
https://review.opendev.org/#/c/754934/

[Jackie Huang (jackie-huang)]

Merged:
https://opendev.org/starlingx/meta-starlingx/commit/8f842934b612602b6a69fc71fcdc96a10563befa

[Ghada Khalil (gkhalil)]

Low / doesn't gate the next release as this appears to be prep work for multi-os support