SAP Uproc ends aborted. The SAP Manager log displayed: SAP system [*/*/*]: RfcOpenEx fails is reported
After having enabled the SAP Manager debugging level (variableU_AGT_LOG_LEVEL=3,ALL) and RFC trace (AGTSAP_TRACE_DEVTRC=3) check that the following errors are reported in the files 'sapjcs.log' and'dev_rfc.trc' occurs.
1 - In the 'sapjcs.log' file, this error is reported by a thread number (tid) ####
(7752 in this example) :
uxsap_open_comm # SAP system [*/*/*]: RfcOpenEx fails
uxsap_open_comm # error group 
tid 7752 # uxsap_open_comm # key[RFC_ERROR_COMMUNICATION]
uxsap_open_comm # message [Connect to SAP gateway failed Connect_PM...
2 - In the 'dev_rfc.trc' file, for the same thread ID (7752), the error message :
'max no of 100 conversations exceeded' is displayed :
T:7752 Error in program 'UniSapManager': ======> Connect to SAP
gateway failed Connect_PM GWHOST=srv-sapqas, GWSERV=sapgw00,
LOCATION CPIC (TCP/IP) on local host
ERROR max no of 100 conversations exceeded
It seems that you have reached a limit on the maximum number of RFC
This SAP problem can be solved by increasing the CPIC_MAX_CONV value (default
value is 100) as mentioned in the SAP note 314530.
Read carefully the SAP Note 314530 for more details about the changes to do.