JCO_COMMUNICATION_FAILURE Error at message procesing

[Former Member]

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>&amp;quot;COMMUNICATION FAILURE&amp;quot; during JCo call. Error opening an RFC connection
</SAP:Stack>
<SAP:Retry>A
</SAP:Retry>
</SAP:Error>

I taked a look at:

but i still can't find the problem.

Thanks in advance for your help,

Regards

[Former Member · Accepted solution]

hi Martin,

You can check ur mapping using the test mapping tool before you are running the scenario.

Regards,

Divija.

[Former Member · Accepted solution]

Hi all and thanks for your quiclky answers.

I tried to access sm59 with no succes by permission problem.

So, ¿How i can use the test mapping tool at scenario development?

Thanks in advance,

[Shabarish_Nair · Accepted solution]

i dont think the test mapping has to do anything with the JCO error ... usually anythin was wrong in ur mapping wud have thrown a 'mapping error'

[bhavesh_kantilal · Accepted solution]

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

[Shabarish_Nair]

Do check the RFC destinations as mentioned in above posts. Else try a restart of the system. It has helped me at occasions.

[bhavesh_kantilal]

Hi,

Check SM59 -> TCP / IP Connection --> AI_RUNTIME_JCOSERVER and AI_DIRECTORY_JCOSERVER 's connectiivity.

These are used for communication between the ABAP and JAVA stack and if the connectivty fails, mostly the JAVA stack is down. Try a simple restart of the XI box.

Regards,

Bhavesh

[Former Member]

Hi ,

I think there is some problem with JCO_SERVER entry in SM59.

Check this thread also...

Sekhar