Update

devplacepy/services/base.py

@@ -123,7 +123,8 @@ class BaseService(ABC):
     details = ""
     DEFAULT_LOG_SIZE = 20
     TICK_SECONDS = 1
-    PERSIST_SECONDS = 3
+    PERSIST_SECONDS = 8
+    METRICS_SECONDS = 15
     STALE_SECONDS = 15
 
     def __init__(self, name: str, interval_seconds: int = 3600):
@@ -144,6 +145,9 @@ class BaseService(ABC):
         self._run_pending = False
         self._last_command = None
         self._last_persist = None
+        self._last_metrics = None
+        self._metrics_snapshot = {}
+        self._state_row_id = None
         self.enabled_field = ConfigField(
             self.enabled_key,
             "Enabled",
@@ -234,6 +238,14 @@ class BaseService(ABC):
             logger.warning(f"Could not collect metrics for {self.name}: {e}")
             return {}
 
+    def _current_metrics(self, now, force: bool = False) -> dict:
+        if not force and self._last_metrics is not None:
+            if (now - self._last_metrics).total_seconds() < self.METRICS_SECONDS:
+                return self._metrics_snapshot
+        self._last_metrics = now
+        self._metrics_snapshot = self._safe_metrics()
+        return self._metrics_snapshot
+
     def start_supervisor(self) -> None:
         if self._task is not None:
             return
@@ -344,16 +356,18 @@ class BaseService(ABC):
             "started_at": self._started_at.isoformat() if self._started_at else "",
             "heartbeat": now.isoformat(),
             "logs": json.dumps(list(self.log_buffer)),
-            "metrics": json.dumps(self._safe_metrics()),
+            "metrics": json.dumps(self._current_metrics(now, force=force)),
             "updated_at": now.isoformat(),
         }
         try:
             table = get_table("service_state")
-            existing = table.find_one(name=self.name)
-            if existing:
-                table.update({**record, "id": existing["id"]}, ["id"])
+            if self._state_row_id is None:
+                existing = table.find_one(name=self.name)
+                self._state_row_id = existing["id"] if existing else None
+            if self._state_row_id is not None:
+                table.update({**record, "id": self._state_row_id}, ["id"])
             else:
-                table.insert(record)
+                self._state_row_id = table.insert(record)
         except Exception as e:
             logger.warning(f"Could not persist state for {self.name}: {e}")