JCO_COMMUNICATION_FAILURE Error at message procesing

Hi all,
At a productive XI server we are having a lot of errors in message procesing.
Please take a look:
<SAP:Error xmlns:SAP=" http://sap.com/xi/XI/Message/30" xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/" SOAP:mustU
nderstand="">
<SAP:Category>XIServer
</SAP:Category>
<SAP:Code area="MAPPING">JCO_COMMUNICATION_FAILURE
</SAP:Code>
<SAP:P1>Error opening an RFC connection.
</SAP:P1>
<SAP:P2/>
<SAP:P3/>
<SAP:P4/>
<SAP:AdditionalText/>
<SAP:ApplicationFaultMessage namespace=""/>
<SAP:Stack>&quot;COMMUNICATION FAILURE&quot; during JCo call. Error opening an RFC connection
</SAP:Stack>
<SAP:Retry>A
</SAP:Retry>
</SAP:Error>
I taked a look at: JCO_COMMUNICATION_FAILURE
but i still can't find the problem.
Thanks in advance for your help,
Regards

Hi,
If you want to test your Message Mapping in the IR, then you will not get this JCO error.
You will get this error if you are doing an end to end run of your interface and the communication between the JAVA and ABAP stack is not available. If you are doing an end to end test and still facing this issue ,like mentioned, ask your BASIS team to restart the server. ( out of 10 times this error will vanish when you test your interface after the restart,.
Regards,
Bhavesh

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