SAP Agent: RFC_ERROR_COMMUNICATION

Document ID : KB000120701
Last Modified Date : 20/11/2018
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Issue:
Agent is online but no jobs are submitted in SAP.

Error in job log :
U02000155 Internal error (Exception). java.lang.NullPointerException at com.uc4.ex.sap.SAPJob.execute(SAPJob.java:273)
at com.uc4.ex.Job.run(Job.java:469) at com.uc4.ex.ThreadPool$RunnableDecorator.run(ThreadPool.java:53)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:483) at java.util.concurrent.FutureTask.run(FutureTask.java:274)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1157) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:627)
at java.lang.Thread.run(Thread.java:809) After agent restart everything start to run smoothly.


In the jco_dev_rfc.trc following kind of errors:

================================================================= 
Error: >Thu Oct 25 17:16:14,909< RfcException: 
message: Connect to message server on host kftsapkpa01.krft.net failed 
Connection parameters: TYPE=B DEST=OBP_E160RFC_AUTOMIC 6050326126af6b1e7217573a5e3248 MSHOST=OBPsappos01.krft.net R3NAME=OBP GROUP=AUTOMIC PCS=1 

ERROR service 'sapmsOBP' unknown 
TIME Thu Oct 25 17:16:14 2018 
RELEASE 721 
COMPONENT NI (network interface) 
VERSION 40 
RC -3 
MODULE nixxsl.cpp 
LINE 184 
DETAIL NiSrvLGetServNo: service name cached as unknown 
COUNTER 13 

return code: RFC_FAILURE (1) 
error group: 102 
key: RFC_ERROR_COMMUNICATION 
====================================================================== 
Cause:
CPIC Errors are low level SAP protocole error, and not related to the Automic Agent.
Resolution:
First investigation should be done at Network level, in cooperation with the SAP Administration team