EXPORT / IMPORT TO/FROM SHARED BUFFER

Question

Hello all,
I am facing a problem with the EXPORT/IMPORT to SHARED BUFFER statements.
In my report program , I export data to the shared memory.
I then call a transaction to park an accouting document.
The BTE 2218 gets triggered in the process. Here the IMPORT works fine.
Later, there is a standard function module which is called IN UPDATE TASK.
Within this, the IMPORT statement fails.
It works on one server but not on another.
Notes :
The IMPORT works in debugging mode but fails if I simply run.
Another point is that the ID used for identifying the shared memory uses sy-uname.
Can the visiblity of sy-uname in UPDATE TASK be controlled by settings ?
Any ideas on this ?
Please don't copy paste the help on SHARED BUFFER etc.
Thanks in advance.

Answer 1

Hi Mariano,
the issue is to due to multiple servers present where SHARED MEMORY is specific for each application server.
So we export data into shared memory in program A, we have to be sure, that program B or FM which is called in background or update task by program A runs on the same application server
Here, the problem is when program A calls the program B or FM in background or update it’s a dynamic scheduling to all application server with have batch work processes and not the same application server that of calling program A always, so program B runs on another application server which has different shared  memory.
Solution will be:-
To Force program B to run on same application server as of calling program A by
passing sy-host of calling program A to Function module “JOB_CLOSE” parameter
name “TARGETSERVER”. OR
Instead of using SHARED MEMORY we will use DATABASE.
        EXPORT itab FROM itab  TO DATABASE indx(ar) CLIENT sy-mandt ID job_number in programA where job number is unique.
        Then IMPORT itab TO itab FROM database indx(ar) CLIENT sy-mandt ID job_number  in program B Where job number is passed from program A to B.
        Then DELETE FROM DATABASE indx(ar) CLIENT sy-mandt ID job_number.
Regards,
Vignesh Yeram