SAP Knowledge Base Article

Symptom

When performing a system upgrade or installing an Enhancement Package, during the phase INITSUBST (where the user is asked to enter parameters for the subsequent phases), the last question from the upgrade tool is the following:

To optimize memory usage during activation, you can use the so-called "memory-optimized activator". Do you want to use this possibility? 01)  -  Yes 02)  *  No

Similar to the following:

 This article will explain the purpose of this feature and its usage.

 

Environment

l SAP Netweaver Release Independent l Upgrade Tools for ABAP l Upgrade Tools for Java

Resolution

This feature is intended to optimize the activation of ABAP objects during ACT_UPG phase in 32-bit systems only. Therefore, if you have a 64-bit system, you must select option "NO" for this question! Answer "YES" only if your system is a 32-bit one!

Selecting "YES" will force the upgrade tool to add a parameter on the shadow instance profile called ddic/masact/memopt = true, which will then trigger this feature during ACT_UPG phase. The problem is that it decrease the performance considerably during this phase (commonly from a few hours to more than a day, depending on the number of objects to be activated), causing problems to finishg the upgrade on the scheduled window. Here's a screenshot of the parameter set and active on a instance profile:

    1630256 - Usage of the "memory-optimized activator" during Upgrades and Enhancement Packages Installations  

Version   3     Validity: 06.06.2013 - active   Language   English

If you have already selected "YES" for this option and is facing performance issues in ACT_UPG, you must stop the Upg/EhP tool, delete the parameter "ddic/masact/memopt = true" from the shadow instance profile, restart the shadow instance (for changes to take effect) and restart the Upg/EhP tool, repeating ACT_UPG with option "Repeat". This should bring the execution of ACT_UPG to the normal performance.

See Also

l 1387739: Out of memory in ACT_UPG phase during EHP installation

Keywords

ACT_UPG, performance, phase, issue, slow, hang, upgrade, enhancement, package, upg, ehpi, tool, ehp, memory, optimized, activator, 32, bit, 64, shadow, instance, slowness, problem, repeat, init, halt, issue, hand, update, DDIC_ACTIVATION, performance, suggestion, solution, extra, program, SUM, turbo, tune, up, optimize, speed, run, fast, how, to, trouble, troubleshoot, long, runtime, delay, refrain, window, reset

Header Data

Product

Released On 06.06.2013 00:19:04

Release Status Released to Customer

Component BC-UPG Upgrade - general

BC-EHP Enhancement Package

Priority Normal

Category How To

Product Product Version

SAP ERP SAP ERP 6.0

mySAP ERP 2004

SAP NetWeaver SAP NetWeaver 2004

SAP NetWeaver 7.0

SAP NetWeaver 7.3

SAP NetWeaver 7.4

SAP enhancement package 1 for SAP NetWeaver 7.0

SAP enhancement package 1 for SAP NetWeaver 7.3

SAP enhancement package 2 for SAP NetWeaver 7.0

SAP enhancement package 3 for SAP NetWeaver 7.0

Other Components