updated

src/analytics/worker.py

@@ -25,6 +25,21 @@ class AnalyticsWorker:
     def __init__(self):
         self.last_processed_timestamp = None
         self.db_url = DB_URL
+    
+    def wait_for_questdb(self, max_retries: int = 30, retry_delay: int = 2):
+        """Wartet bis QuestDB verfügbar ist"""
+        logger.info("Waiting for QuestDB to be available...")
+        for i in range(max_retries):
+            try:
+                response = requests.get(f"{self.db_url}/exec", params={'query': 'select 1'}, auth=DB_AUTH, timeout=2)
+                if response.status_code == 200:
+                    logger.info("QuestDB is available!")
+                    return True
+            except Exception as e:
+                logger.debug(f"QuestDB not ready yet (attempt {i+1}/{max_retries}): {e}")
+                time.sleep(retry_delay)
+        logger.error("QuestDB did not become available after waiting")
+        return False
         
     def get_last_processed_timestamp(self) -> Optional[datetime.datetime]:
         """Holt den letzten verarbeiteten Timestamp aus der Analytics-Tabelle"""
@@ -414,6 +429,11 @@ class AnalyticsWorker:
         """Hauptschleife des Workers"""
         logger.info("Analytics Worker started.")
         
+        # Warte auf QuestDB
+        if not self.wait_for_questdb():
+            logger.error("Failed to connect to QuestDB. Exiting.")
+            return
+        
         # Initiale Verarbeitung
         self.process_all_analytics()
         self.last_processed_timestamp = datetime.datetime.now(datetime.timezone.utc)
@@ -434,8 +454,11 @@ class AnalyticsWorker:
                 
                 # Warte 30 Sekunden vor nächster Prüfung
                 time.sleep(30)
+            except requests.exceptions.ConnectionError as e:
+                logger.warning(f"Connection error to QuestDB, retrying in 60s: {e}")
+                time.sleep(60)  # Längere Pause bei Verbindungsfehler
             except Exception as e:
-                logger.error(f"Error in worker loop: {e}")
+                logger.error(f"Error in worker loop: {e}", exc_info=True)
                 time.sleep(60)  # Längere Pause bei Fehler
 
 def main():