Connection refused to client

I am testing IotDB in standalone mode. The server works flawlessly whenever launched, but after a while client connections are refused either locally or remotely. I have the following errors logs:

Confignode logs:
`
2023-12-17 00:02:16,149 [AsyncDataNodeInternalServiceClientPool-selector-63] ERROR o.a.i.c.c.a.AsyncDataNodeInternalServiceClient:126 - Unexpected exception occurs in AsyncDataNodeInternalServiceClient{TEndPoint(ip:127.0.0.1, port:10730)} : Client has an error! 2023-12-17 00:02:16,149 [AsyncDataNodeInternalServiceClientPool-selector-63] ERROR o.a.i.c.c.a.h.r.PipePushMetaRPCHandler:78 - Failed to PIPE_PUSH_ALL_META on DataNode: {id=1, internalEndPoint=TEndPoint(ip:127.0.0.1, port:10730)}, exception: Connection refused
`

Datanode Logs:
`
2023-12-16 00:20:27,850 [pool-30-IoTDB-ClientRPC-Processor-14] ERROR o.a.t.s.TThreadPoolServer$WorkerProcess:258 - Thrift Error occurred during processing of message. org.apache.thrift.transport.TTransportException: Frame size (1129270862) larger than protect max size (536870912)! 2023-12-16 11:59:28,470 [pool-30-IoTDB-ClientRPC-Processor-15] ERROR o.a.i.c.c.t.WrappedThreadPoolExecutor:111 - Exception in thread pool org.apache.iotdb.threadpool:type=ClientRPC-Processor 2023-12-16 11:59:28,471 [pool-30-IoTDB-ClientRPC-Processor-15] ERROR o.a.i.c.c.IoTDBDefaultThreadExceptionHandler:31 - Exception in thread pool-30-IoTDB-ClientRPC-Processor-15-97
`

I am hosting IoTDB on a VPS server with limited ressources (1GB ram). Although, when I run the start-stanadlone script the only ports that is open is port 6667, all other ports are closed. Any hints?

Thanks for your help.
Alexis

Beginne mit dem start-standalone-Skript und vergleiche die ConfigNode- und DataNode-Logs rund um die erste verweigerte Verbindung. Prüfe, ob die begrenzten Ressourcen des 1-GB-VPS, die RPC-Prozessorfehler des Clients oder geschlossene Service-Ports den Fehler erklären; abgeschlossen ist die Untersuchung, wenn die Ursache identifiziert und eine reproduzierbare Korrektur oder Konfigurationsänderung dokumentiert wurde.

Vom Indexierungsmodell aus dem Issue-Text verfasst.