Change drone state initialisation and notification of plugins #247
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@@ Coverage Diff @@
## master #247 +/- ##
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- Coverage 99.39% 99.34% -0.05%
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Files 54 54
Lines 2144 2145 +1
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Hits 2131 2131
- Misses 13 14 +1
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|
giffels
commented
May 11, 2022
| @@ -126,26 +126,24 @@ def test_create_composite( | |||
| @patch("tardis.resources.poolfactory.BatchSystemAgent") | |||
| @patch("tardis.resources.poolfactory.SiteAgent") | |||
| def test_create_drone(self, mock_site_agent, mock_batch_system_agent, mock_drone): | |||
| self.assertEqual( | |||
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This change is not directly related to the reason for the pull request. Instead it fixes a broken unittest. Actually, the test_create_drone test did not test anything.
giffels
requested review from
maxfischer2781,
a team and
RHofsaess
and removed request for
a team
maxfischer2781
requested changes
May 13, 2022
Co-authored-by: Max Fischer <maxfischer2781@gmail.com>
maxfischer2781
approved these changes
May 13, 2022
This was referenced May 25, 2022
This was referenced Mar 29, 2023
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Currently, newly created drones are initialised with
state=RequestState(). Plugins like theSqliteRegistrywill be notified on the first state changeRequestState->BootingState. As a consequence, theSqliteRegistryis inserting the Drone on the change toBootingState. Sometimes the first startup of a Drone is not successful, which requeues the job associated with the Drone in case of using theHTCondorSiteAdapter. So, the following pattern is occuring in the log.The Drone is in
ResourceState.Runningfor a short moment before it goes toResourceState.Bootingagain due to requeing. So the state of the Drone changes toIntegratingState.Shortly afterwards the drone is
ResourceState.Bootingagain and the Drone changes back toBootingStateagain.This in turn leads to a re-insertion of the Drone in the
SqliteRegistrycausing the following error.sqlite3.IntegrityError: column drone_uuid is not uniqueThis pull request changes the initialisation procedure and the notfication of the plugins, so that the above behaviour is not occuring anymore. A newly created Drone is now initialised with
state = Noneand all plugins are notified first state changeNone->RequestState. The Drone is now inserted when it state changes toRequestStateand all subsequent changes are DB updates.