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Don't update alert group metrics when deleting an alert group #3544

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merged 4 commits into from
Dec 11, 2023
Merged

Don't update alert group metrics when deleting an alert group #3544

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da9a695
dont update alert group metrics when
joeyorlando Dec 11, 2023
4676f86
add test
joeyorlando Dec 11, 2023
620c5a6
update changelog
joeyorlando Dec 11, 2023
7372fff
WIP
joeyorlando Dec 11, 2023
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
### Fixed

- Fix schedules invalid dates issue ([#support-escalations/issues/8084](https://github.com/grafana/support-escalations/issues/8084))
- Fix issue related to updating alert group metrics when deleting an alert group via the public API by @joeyorlando ([#3544](https://github.com/grafana/oncall/pull/3544))

## v1.3.76 (2023-12-11)

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7 changes: 2 additions & 5 deletions engine/apps/alerts/models/alert_group.py
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Expand Up @@ -1191,8 +1191,6 @@ def wipe_by_user(self, user: User) -> None:
def delete_by_user(self, user: User):
from apps.alerts.models import AlertGroupLogRecord

initial_state = self.state

self.stop_escalation()
# prevent creating multiple logs
# filter instead of get_or_create cause it can be multiple logs of this type due deleting error
Expand Down Expand Up @@ -1222,10 +1220,9 @@ def delete_by_user(self, user: User):
dependent_alerts = list(self.dependent_alert_groups.all())

self.hard_delete()
# Update alert group state metric cache
self._update_metrics(organization_id=user.organization_id, previous_state=initial_state, state=None)
Comment on lines 1222 to -1226
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an alternative here could be to call self._update_metrics() before calling self.hard_delete()

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I don't think it makes sense to call it before, since it updates metrics async and we don't protect ourself of error it should fix.
I'd propose either call it sync here (but we change it to async everywhere by purpose) or expend parameters we pass to _update_metrics to allow it to update metrics anyway.

For now I think it's ok to remove metrics update from here, since we recalculate all metrics once a day


for dependent_alert_group in dependent_alerts: # unattach dependent incidents
# unattach dependent incidents
for dependent_alert_group in dependent_alerts:
dependent_alert_group.un_attach_by_delete()

def hard_delete(self):
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2 changes: 2 additions & 0 deletions engine/apps/alerts/tasks/delete_alert_group.py
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Expand Up @@ -24,6 +24,8 @@ def delete_alert_group(alert_group_pk, user_pk):
logger.debug("User not found, skipping delete_alert_group")
return

logger.debug(f"User {user} is deleting alert group {alert_group} (channel: {alert_group.channel})")

try:
alert_group.delete_by_user(user)
except SlackAPIRatelimitError as e:
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44 changes: 44 additions & 0 deletions engine/apps/alerts/tests/test_alert_group.py
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Expand Up @@ -577,3 +577,47 @@ def test_filter_active_alert_groups(
assert active_alert_groups.count() == 2
assert alert_group_active in active_alert_groups
assert alert_group_active_silenced in active_alert_groups


@patch("apps.alerts.models.AlertGroup.hard_delete")
@patch("apps.alerts.models.AlertGroup.un_attach_by_delete")
@patch("apps.alerts.models.AlertGroup.stop_escalation")
@patch("apps.alerts.models.alert_group.alert_group_action_triggered_signal")
@pytest.mark.django_db
def test_delete_by_user(
mock_alert_group_action_triggered_signal,
_mock_stop_escalation,
_mock_un_attach_by_delete,
_mock_hard_delete,
make_organization_and_user,
make_alert_receive_channel,
make_alert_group,
):
organization, user = make_organization_and_user()
alert_receive_channel = make_alert_receive_channel(organization)

alert_group = make_alert_group(alert_receive_channel)

# make a few dependent alert groups
dependent_alert_groups = [make_alert_group(alert_receive_channel, root_alert_group=alert_group) for _ in range(3)]

assert alert_group.log_records.filter(type=AlertGroupLogRecord.TYPE_DELETED).count() == 0

alert_group.delete_by_user(user)

assert alert_group.log_records.filter(type=AlertGroupLogRecord.TYPE_DELETED).count() == 1
deleted_log_record = alert_group.log_records.get(type=AlertGroupLogRecord.TYPE_DELETED)

alert_group.stop_escalation.assert_called_once_with()

mock_alert_group_action_triggered_signal.send.assert_called_once_with(
sender=alert_group.delete_by_user,
log_record=deleted_log_record.pk,
action_source=None,
force_sync=True,
)

alert_group.hard_delete.assert_called_once_with()

for dependent_alert_group in dependent_alert_groups:
dependent_alert_group.un_attach_by_delete.assert_called_with()
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