Generate Prometheus metrics in an executor job (#121058)

home-assistant · Jul 3, 2024 · 36e74cd · 36e74cd
1 parent 16827ea
commit 36e74cd
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/homeassistant/components/prometheus/__init__.py b/homeassistant/components/prometheus/__init__.py
@@ -26,7 +26,7 @@
     ATTR_CURRENT_POSITION,
     ATTR_CURRENT_TILT_POSITION,
 )
-from homeassistant.components.http import HomeAssistantView
+from homeassistant.components.http import KEY_HASS, HomeAssistantView
 from homeassistant.components.humidifier import ATTR_AVAILABLE_MODES, ATTR_HUMIDITY
 from homeassistant.components.light import ATTR_BRIGHTNESS
 from homeassistant.components.sensor import SensorDeviceClass
@@ -729,7 +729,11 @@ async def get(self, request: web.Request) -> web.Response:
         """Handle request for Prometheus metrics."""
         _LOGGER.debug("Received Prometheus metrics request")
 
+        hass = request.app[KEY_HASS]
+        body = await hass.async_add_executor_job(
+            prometheus_client.generate_latest, prometheus_client.REGISTRY
+        )
         return web.Response(
-            body=prometheus_client.generate_latest(prometheus_client.REGISTRY),
+            body=body,
             content_type=CONTENT_TYPE_TEXT_PLAIN,
         )