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Improve stator's performance in larger installs

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This commit is contained in:
Andrew Godwin 2023-05-15 11:33:31 -06:00
parent 9bc18a1190
commit b2768e7f2e
2 changed files with 15 additions and 6 deletions
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17
stator/models.py
View file

@ -81,6 +81,8 @@ class StatorModel(models.Model):
concrete model yourself.
"""
SCHEDULE_BATCH_SIZE = 1000
state: StateField
# If this row is up for transition attempts (which it always is on creation!)
@ -141,7 +143,8 @@ class StatorModel(models.Model):
),
state=state.name,
)
await cls.objects.filter(q).aupdate(state_ready=True)
select_query = cls.objects.filter(q)[: cls.SCHEDULE_BATCH_SIZE]
await cls.objects.filter(pk__in=select_query).aupdate(state_ready=True)
@classmethod
async def atransition_delete_due(cls, now=None):
@ -153,12 +156,13 @@ class StatorModel(models.Model):
for state in cls.state_graph.states.values():
state = cast(State, state)
if state.delete_after:
await cls.objects.filter(
select_query = cls.objects.filter(
state=state,
state_changed__lte=(
now - datetime.timedelta(seconds=state.delete_after)
),
).adelete()
)[: cls.SCHEDULE_BATCH_SIZE]
await cls.objects.filter(pk__in=select_query).adelete()
@classmethod
def transition_get_with_lock(
@ -199,9 +203,10 @@ class StatorModel(models.Model):
@classmethod
async def atransition_clean_locks(cls):
await cls.objects.filter(state_locked_until__lte=timezone.now()).aupdate(
state_locked_until=None
)
select_query = cls.objects.filter(state_locked_until__lte=timezone.now())[
: cls.SCHEDULE_BATCH_SIZE
]
await cls.objects.filter(pk__in=select_query).aupdate(state_locked_until=None)
def transition_schedule(self):
"""

4
stator/runner.py
View file

@ -169,9 +169,13 @@ class StatorRunner:
print("No tasks handled since last flush.")
with sentry.start_transaction(op="task", name="stator.run_scheduling"):
for model in self.models:
print(f"Scheduling {model._meta.label_lower}")
await self.submit_stats(model)
print(" Cleaning locks")
await model.atransition_clean_locks()
print(" Scheduling due items")
await model.atransition_schedule_due()
print(" Deleting due items")
await model.atransition_delete_due()
async def submit_stats(self, model):