2455613 - HANA: rc=15 connection broken errors

• Experiencing random errors while performing data load or while doing sr_register from secondary or seeing high number of communication channels being used.
• Indexserver trace file reports errors similar to:

TrexNet          Responder.cpp(02047) : caught network exception BadParam//channel not in list! while mapping from handle to channel in main loop 

or

TrexNet          Channel.cpp(00471) : active channel (since 1252mues) 3 from 54789 to 172.30.xx.xx:30102 with method dr_registerdatacenter with id 3 on host ******* on port 0 from process hdbnsutil with service port 0, pid 34529 and tid 34529: reading failed with rc=15 (connection broken) 

or

TrexNet          EndPoint.cpp(00329) : ERROR: failed to open channel 127.0.0.1:32005! reason: (connection refused)

• SAP HANA, platform edition 1.0
• SAP HANA, platform edition 2.0

Connection error, rc 15, HANA rc=15, OS, network utilization, network utilisation, shutdown , KBA , HAN-DB , SAP HANA Database , Problem