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88 lines
2.7 KiB
Python
88 lines
2.7 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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from typing import TYPE_CHECKING
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import attr
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from synapse.metrics.background_process_metrics import run_as_background_process
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if TYPE_CHECKING:
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from synapse.server import HomeServer
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from prometheus_client import Gauge
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# Gauge to expose daily active users metrics
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current_dau_gauge = Gauge(
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"synapse_admin_daily_active_users",
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"Current daily active users count",
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)
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@attr.s(auto_attribs=True)
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class CommonUsageMetrics:
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"""Usage metrics shared between the phone home stats and the prometheus exporter."""
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daily_active_users: int
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class CommonUsageMetricsManager:
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"""Collects common usage metrics."""
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def __init__(self, hs: "HomeServer") -> None:
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self._store = hs.get_datastores().main
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self._clock = hs.get_clock()
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async def get_metrics(self) -> CommonUsageMetrics:
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"""Get the CommonUsageMetrics object. If no collection has happened yet, do it
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before returning the metrics.
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Returns:
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The CommonUsageMetrics object to read common metrics from.
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"""
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return await self._collect()
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async def setup(self) -> None:
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"""Keep the gauges for common usage metrics up to date."""
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run_as_background_process(
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desc="common_usage_metrics_update_gauges", func=self._update_gauges
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)
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self._clock.looping_call(
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run_as_background_process,
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5 * 60 * 1000,
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desc="common_usage_metrics_update_gauges",
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func=self._update_gauges,
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)
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async def _collect(self) -> CommonUsageMetrics:
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"""Collect the common metrics and either create the CommonUsageMetrics object to
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use if it doesn't exist yet, or update it.
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"""
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dau_count = await self._store.count_daily_users()
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return CommonUsageMetrics(
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daily_active_users=dau_count,
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)
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async def _update_gauges(self) -> None:
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"""Update the Prometheus gauges."""
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metrics = await self._collect()
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current_dau_gauge.set(float(metrics.daily_active_users))
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