Required info on cache for mam application on PDA.

[konchada_saikrishna]

Hi All,

We are working on mam3.0 for PDA enhancing the standard application.

Enhancement is done and application is working fine without errors, but it is very slow.

We came to know that there would be data caching option either in PDA / Application such that when we ran the application, it first execute it from cache if there is no change in the application else it will run the application all new again.

If there is such provision, can somebody help us in acheiving the same.

Thanks & Regards,

Sai .K .K

[Former Member · Accepted solution]

Hi,

no, data caching is not available in MI for your need. If you test the app ypu will see that the first time you open a screen it takes a while - and the second time it is faster. But this is due to internal MI/Tomcat handling and not related to data caching itself. On the other hand it will make not much sence, because to test if data has changed - well - you have to read it anyway form the DB. You could probably build something for your own, controlling the last sync time and that stuff - but to be honest, that is a hughe yob in my understanding.

On the other hand: what do you mean by: it is slow? A response time of less then 5secs is based on the architecture of MI on a PDA a usual value. Usual optimisations can be done on the JSP level. If you are slower then 5secs, you should think about your steps and data volume on the device I think - because this is unusuall.

Hope this helps to bring you a step further.

Regards,

Oliver

[konchada_saikrishna · Accepted solution]

Hi Oliver,

Thanks a lot for your reply, we understand that the Tomcat engie genrates class files(servlets) for the jsp and its process.

IN some places the applicalation is more than 5 secs and even 65 secs.

how ever we changed the code such that the responce time is @ 3 secs.

Also can you help us with the status level (service packs) required in configuring our ERP to make it run MAM3.0

Once again thanks for your help in this regard.

Sai .K. K

[former_member304703 · Accepted solution]

Hi Konchada,

as Oliver said MAM does not have any data cache. You can, of course, enhance the app and cache data but then you have to take care that you refresh it properly on certain events.

As for MAM 3.0 backend minimum requirements they are as follows:

R/3 4.6C (minimum SP53) with SAP R/3 Plug-in 2004.1 (Minimum SP13)

R/3 4.7 (Minimum SP 27) with SAP R/3 Plug-in 2004.1 (Minimum SP13)

ERP 2004 (Minimum SP11) with SAP R/3 Plug-in 2004.1 (Minimum SP14)

ERP 2005 (Minimum SP6), no Plug-in required

Please be aware that you will need to apply quite a few notes even if you are on the latest SP level for any of this backends.

MAM 3.0 central note references backend central notes for various supported backend. You should take care that appropriate note is analysed and all notes are implemented.

Regards,

larissa Limarova

[Former Member · Accepted solution]

Hi,

yes, it is not a big issue to get a more performance out of MAM and make the look and feel better. The enhancement guide helps a lot here and ith some little changes you can convert the APP really to a tool the users loves and it supports his needs better then the standard does.

Larissa already gave you the relevant information you need for the backend - I think.

So hopefully from here you can continue your work.

Have fu and Merry Xmas!

Regards,

Oliver

[konchada_saikrishna · Accepted solution]

Hi Larissa, Oliver.

Thank you for your valueable inputs we started fixing our SAP system for MAM3.0.

Merry christmas to you all n'joy.

Thanks & Regards,

Sai. K. K