ABAP_to_the_Future

14
Shared Memory
shared memory to fail and cause short dumps if your custom shared memory areas get
over a certain size. You need to do a lot of testing in QA to make sure that the total
shared memory usage (which can be seen via monitoring Transaction SHMM) does not
come anywhere near the maximum size allocated by your Basis department.
If you have a shared memory object being used as a buffer, then one possible control
mechanism is to have an attribute that controls the maximum size of the buffer—an
attribute readout of a Z table that can be changed directly in production to reduce the
buffer size in the event of an emergency.
14.5 Summary
In this chapter, you learned about the shared memory framework by describing
the problems it’s meant to solve, how to configure it, and some troubleshooting
tips.
At some point in the future—still many years away for most—the whole shared
objects framework will become redundant for those SAP customers who move to
using the SAP HANA database, which is the topic of the final chapter.
Recommended Reading
How to Work with ABAP Shared Memory Objects: http://scn.sap.com/docs/DOC-10461
(Trond Stroemme)
654