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feat(flags): add quota limiting for feature flags served up with /decide and to local_evaluation #28564

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feat(flags): add quota limiting for feature flags served up with /decide and to local_evaluation #28564

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e5b00e8
ruff
dmarticus Feb 11, 2025
03f877c
import constants
dmarticus Feb 11, 2025
20d7c14
Merge branch 'master' into feat/quota-limiting
dmarticus Feb 11, 2025
2ed2be7
add feature flags to these quota limit assertions
dmarticus Feb 11, 2025
0dd8563
Merge branch 'feat/quota-limiting' of github.com:PostHog/posthog into…
dmarticus Feb 11, 2025
51f0df5
darnit i missed one
dmarticus Feb 11, 2025
b428fa8
two more bugs I fixed wow go me
dmarticus Feb 11, 2025
290d681
Merge branch 'master' into feat/quota-limiting
dmarticus Feb 11, 2025
727c4cf
fixing some tests
dmarticus Feb 11, 2025
3836ffe
Merge branch 'feat/quota-limiting' of github.com:PostHog/posthog into…
dmarticus Feb 11, 2025
62b09c1
sigh idk
dmarticus Feb 11, 2025
b9c38d1
Merge branch 'master' into feat/quota-limiting
dmarticus Feb 12, 2025
fef5963
Merge branch 'master' into feat/quota-limiting
dmarticus Feb 12, 2025
ca1037b
Merge branch 'feat/quota-limiting' of github.com:PostHog/posthog into…
dmarticus Feb 12, 2025
e980e11
cleaning up quota limiting + remote config
dmarticus Feb 12, 2025
cd37a8b
more response polishing
dmarticus Feb 12, 2025
1d662c9
Merge branch 'master' into feat/quota-limiting
dmarticus Feb 12, 2025
7d82a58
delete prints
dmarticus Feb 12, 2025
96f59ae
moar tests
dmarticus Feb 12, 2025
efd76bc
Merge branch 'master' into feat/quota-limiting
dmarticus Feb 12, 2025
9f06adf
limit local eval, too
dmarticus Feb 13, 2025
12c13c8
Merge branch 'feat/quota-limiting' of github.com:PostHog/posthog into…
dmarticus Feb 13, 2025
a176607
renamed the quota limit to make it more clear
dmarticus Feb 14, 2025
f1eab3f
respond with an error instead; this feels more honest
dmarticus Feb 14, 2025
641988e
resolvin them conflicts
dmarticus Feb 14, 2025
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44 changes: 34 additions & 10 deletions ee/billing/quota_limiting.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@
from posthog.exceptions_capture import capture_exception

from posthog.cache_utils import cache_for
from posthog.constants import FlagRequestType
from posthog.event_usage import report_organization_action
from posthog.models.organization import Organization, OrganizationUsageInfo
from posthog.models.team.team import Team
Expand All @@ -20,6 +21,7 @@
get_teams_with_billable_event_count_in_period,
get_teams_with_recording_count_in_period,
get_teams_with_rows_synced_in_period,
get_teams_with_feature_flag_requests_count_in_period,
)
from posthog.utils import get_current_day

Expand All @@ -45,6 +47,7 @@ class QuotaResource(Enum):
EVENTS = "events"
RECORDINGS = "recordings"
ROWS_SYNCED = "rows_synced"
FEATURE_FLAGS_EVALUATED = "feature_flags_evaluated"


class QuotaLimitingCaches(Enum):
Expand All @@ -56,13 +59,15 @@ class QuotaLimitingCaches(Enum):
QuotaResource.EVENTS: 0,
QuotaResource.RECORDINGS: 1000,
QuotaResource.ROWS_SYNCED: 0,
QuotaResource.FEATURE_FLAGS_EVALUATED: 0,
}


class UsageCounters(TypedDict):
events: int
recordings: int
rows_synced: int
feature_flags: int


# -------------------------------------------------------------------------------------------------
Expand Down Expand Up @@ -367,7 +372,12 @@ def update_org_billing_quotas(organization: Organization):
"update_org_billing_quotas started", {"today_end": today_end, "organization_id": organization.id}
)

for resource in [QuotaResource.EVENTS, QuotaResource.RECORDINGS, QuotaResource.ROWS_SYNCED]:
for resource in [
QuotaResource.EVENTS,
QuotaResource.RECORDINGS,
QuotaResource.ROWS_SYNCED,
QuotaResource.FEATURE_FLAGS_EVALUATED,
]:
previously_quota_limited_team_tokens = list_limited_team_attributes(
resource,
QuotaLimitingCaches.QUOTA_LIMITER_CACHE_KEY,
Expand Down Expand Up @@ -421,7 +431,7 @@ def set_org_usage_summary(

new_usage = copy.deepcopy(new_usage)

for field in ["events", "recordings", "rows_synced"]:
for field in ["events", "recordings", "rows_synced", "feature_flags_evaluated"]:
resource_usage = new_usage.get(field, {"limit": None, "usage": 0, "todays_usage": 0})
if not resource_usage:
continue
Expand Down Expand Up @@ -476,6 +486,14 @@ def update_all_orgs_billing_quotas(
"teams_with_rows_synced_in_period": convert_team_usage_rows_to_dict(
get_teams_with_rows_synced_in_period(period_start, period_end)
),
"teams_with_decide_requests_count": convert_team_usage_rows_to_dict(
get_teams_with_feature_flag_requests_count_in_period(period_start, period_end, FlagRequestType.DECIDE)
),
"teams_with_local_evaluation_requests_count": convert_team_usage_rows_to_dict(
get_teams_with_feature_flag_requests_count_in_period(
period_start, period_end, FlagRequestType.LOCAL_EVALUATION
)
),
}

teams: Sequence[Team] = list(
Expand Down Expand Up @@ -503,10 +521,14 @@ def update_all_orgs_billing_quotas(

# we iterate through all teams, and add their usage to the organization they belong to
for team in teams:
decide_requests = all_data["teams_with_decide_requests_count"].get(team.id, 0)
local_evaluation_requests = all_data["teams_with_local_evaluation_requests_count"].get(team.id, 0)

team_report = UsageCounters(
events=all_data["teams_with_event_count_in_period"].get(team.id, 0),
recordings=all_data["teams_with_recording_count_in_period"].get(team.id, 0),
rows_synced=all_data["teams_with_rows_synced_in_period"].get(team.id, 0),
feature_flags=decide_requests + (local_evaluation_requests * 10), # Same weighting as in _get_team_report
)

org_id = str(team.organization.id)
Expand All @@ -521,7 +543,7 @@ def update_all_orgs_billing_quotas(

# Now we have the usage for all orgs for the current day
# orgs_by_id is a dict of orgs by id (e.g. {"018e9acf-b488-0000-259c-534bcef40359": <Organization: 018e9acf-b488-0000-259c-534bcef40359>})
# todays_usage_report is a dict of orgs by id with their usage for the current day (e.g. {"018e9acf-b488-0000-259c-534bcef40359": {"events": 100, "recordings": 100, "rows_synced": 100}})
# todays_usage_report is a dict of orgs by id with their usage for the current day (e.g. {"018e9acf-b488-0000-259c-534bcef40359": {"events": 100, "recordings": 100, "rows_synced": 100, "feature_flags_evaluated": 100}})
report_quota_limiting_event(
"update_all_orgs_billing_quotas",
{
Expand All @@ -544,14 +566,15 @@ def update_all_orgs_billing_quotas(
QuotaResource(field), QuotaLimitingCaches.QUOTA_LIMITER_CACHE_KEY
)
# We have the teams that are currently under quota limits
# previously_quota_limited_team_tokens is a dict of resources to team tokens from redis (e.g. {"events": ["phc_123", "phc_456"], "recordings": ["phc_123", "phc_456"], "rows_synced": ["phc_123", "phc_456"]})
# previously_quota_limited_team_tokens is a dict of resources to team tokens from redis (e.g. {"events": ["phc_123", "phc_456"], "recordings": ["phc_123", "phc_456"], "rows_synced": ["phc_123", "phc_456"], "feature_flags_evaluated": ["phc_123", "phc_456"]})
report_quota_limiting_event(
"update_all_orgs_billing_quotas",
{
"event": "previously quota limited teams fetched",
"events_count": len(previously_quota_limited_team_tokens["events"]),
"recordings_count": len(previously_quota_limited_team_tokens["recordings"]),
"rows_synced_count": len(previously_quota_limited_team_tokens["rows_synced"]),
"feature_flags_count": len(previously_quota_limited_team_tokens["feature_flags_evaluated"]),
},
)

Expand All @@ -564,7 +587,7 @@ def update_all_orgs_billing_quotas(
if set_org_usage_summary(org, todays_usage=todays_report):
org.save(update_fields=["usage"])

for field in ["events", "recordings", "rows_synced"]:
for field in ["events", "recordings", "rows_synced", "feature_flags_evaluated"]:
# for each organization, we check if the current usage + today's unreported usage is over the limit
result = org_quota_limited_until(org, QuotaResource(field), previously_quota_limited_team_tokens[field])
if result:
Expand All @@ -576,8 +599,8 @@ def update_all_orgs_billing_quotas(
quota_limited_orgs[field][org_id] = quota_limited_until

# Now we have the teams that are currently under quota limits
# quota_limited_orgs is a dict of resources to org ids (e.g. {"events": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}, "recordings": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}, "rows_synced": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}})
# quota_limiting_suspended_orgs is a dict of resources to org ids (e.g. {"events": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}, "recordings": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}, "rows_synced": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}})
# quota_limited_orgs is a dict of resources to org ids (e.g. {"events": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}, "recordings": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}, "rows_synced": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}, "feature_flags_evaluated": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}})
# quota_limiting_suspended_orgs is a dict of resources to org ids (e.g. {"events": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}, "recordings": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}, "rows_synced": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}, "feature_flags_evaluated": {"018e9acf-b488-0000-259c-534bcef40359": 1737867600}})
report_quota_limiting_event(
"update_all_orgs_billing_quotas",
{
Expand Down Expand Up @@ -608,8 +631,8 @@ def update_all_orgs_billing_quotas(
orgs_with_changes.add(org_id)

# Now we have the teams that are currently under quota limits
# quota_limited_teams is a dict of resources to team tokens (e.g. {"events": {"phc_123": 1737867600}, "recordings": {"phc_123": 1737867600}, "rows_synced": {"phc_123": 1737867600}})
# quota_limiting_suspended_teams is a dict of resources to team tokens (e.g. {"events": {"phc_123": 1737867600}, "recordings": {"phc_123": 1737867600}, "rows_synced": {"phc_123": 1737867600}})
# quota_limited_teams is a dict of resources to team tokens (e.g. {"events": {"phc_123": 1737867600}, "recordings": {"phc_123": 1737867600}, "rows_synced": {"phc_123": 1737867600}, "feature_flags_evaluated": {"phc_123": 1737867600}})
# quota_limiting_suspended_teams is a dict of resources to team tokens (e.g. {"events": {"phc_123": 1737867600}, "recordings": {"phc_123": 1737867600}, "rows_synced": {"phc_123": 1737867600}, "feature_flags_evaluated": {"phc_123": 1737867600}})
report_quota_limiting_event(
"update_all_orgs_billing_quotas",
{
Expand All @@ -623,8 +646,9 @@ def update_all_orgs_billing_quotas(
for org_id in orgs_with_changes:
properties = {
"quota_limited_events": quota_limited_orgs["events"].get(org_id, None),
"quota_limited_recordings": quota_limited_orgs["events"].get(org_id, None),
"quota_limited_recordings": quota_limited_orgs["recordings"].get(org_id, None),
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Is this a bug fix? Has recordings quota limited been wrong this whole time?

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oh wow I didn't even realize i did this; it was a cursor tab-complete for adding in the quota_limited_flags stuff. I'm gonna tag the replay team so they know about this, since i don't want to change it without them signing off, but it's also possible they weren't even aware this was broken. @PostHog/team-replay you folks want to take a look at this?

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🙈 that wouldn't suprise me.

i've never touched quota limiting and don't know how I'd check if it was broken 🤔

more scary, there were no failing tests before or after the change 😱

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turns out it's been that way since being introduced

#14340

that PR talks about tracking so is this just what we're reporting to ourselves or the actual value we use for limiting?

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lol I wonder if it's because the one test where we check the value of that entry we also assert that it's the same value of the quota_limited_events field.

assert org_action_call.kwargs.get("properties") == {
    "quota_limited_events": 1612137599,
    "quota_limited_recordings": 1612137599,
    "quota_limited_rows_synced": None,
}

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🙈

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you nailed it though; that object is just used in report_organization_action, so it's just for internal reporting

    for org_id in orgs_with_changes:
        properties = {
            "quota_limited_events": quota_limited_orgs["events"].get(org_id, None),
            "quota_limited_recordings": quota_limited_orgs["recordings"].get(org_id, None),
            "quota_limited_rows_synced": quota_limited_orgs["rows_synced"].get(org_id, None),
            "quota_limited_feature_flags": quota_limited_orgs["feature_flags"].get(org_id, None),
        }

        report_organization_action(
            orgs_by_id[org_id],
            "organization quota limits changed",
            properties=properties,
            group_properties=properties,
        )

So, no actual quota limiting bug, but a quota limit reporting bug!

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are you ok to fix the test as well here?
i don't understand the impact but i'm guessing quota limiting on the correct count is better than not regardless of if it's just reporting

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oh yeah i'm on it; there's a bunch of other tests I want to fix too – I need to assert the presence of this new quota limit in way more places lol

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awesome... thanks!

"quota_limited_rows_synced": quota_limited_orgs["rows_synced"].get(org_id, None),
"quota_limited_feature_flags": quota_limited_orgs["feature_flags_evaluated"].get(org_id, None),
}

report_organization_action(
Expand Down
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