1900128 - Work process in "on Hold" RFC status in SM50/SM66

• You have external RFC client program which connects to SAP.
• When there are multiple calls in parallel by RFC client program, you may face slow response or even timeout.
• At the same time, you found the work process is in "On Hold" RFC status and in the gateway trace, you found the following error:
  
  NiHLGetHostName: to get xxx.xxx.xxx.xxx failed in xxxxms (tl=2000ms)
  *** ERROR => NiHLGetHostName: NiPGetHostByAddr failed (rc=-1) [nixxhl.
  cpp   495]

SAP system is running on WINDOWs OS

Logon hang, timeout, logon performance, logon slow, name resolving takes long time, hanging, intermittent , KBA , BC-CST-GW , Gateway/CPIC , BC-MID-RFC , RFC , BC-OP-NT , Windows , BC-NET , Network Infrastructure , Problem