LIve cache and why BW in apo

helo sap masters
could u plz help me out ..
1. Why should we maintain LIVE Cache separately despite of having in APO tool.???
2. Why should we have BW in APO too in spite of having BW tool seperately ??

Hi Dallyanusha,
1) Livecache is a special inbuild device in APO which does
speedy operations especially during optimisation and retrives
data quickly from database. For effective functioning of
planning activities, livecache in APO is must.
2) BW in APO serves and stores information on business
master data and transactional data objects and can be
extracted to create various queries and reports. This is
more useful during demand planning
Regards
R. Senthil Mareeswaran.

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Why we need live cache along with RDB in APO

Hello Expert,
I recently entered to APO module so want to know about live cache and why we really need comparing to RDB and what RDB cannot do that live cache can do?

SRS,
Functionalities are pretty much the same. LiveCache is a relational Database, built on MaxDB.
Advantage of LC is that most of the data is stored in memory rather than on disk storage. Data access and retrieval is substantially faster from memory than from disk storage.
Best Regards,
DB49

Is Live Cache System refresh required with APO refresh

Hi APO Experts:
   I have a question concerning the refresh of an APO QAS system. \
   If I have an APO system refreshed from a production APO system, is it required that I refresh the Live Cache as well?
   We have just refreshed our APO QAS system from production and I was thinking it could be easier to just reinstall a new database for Live cache in QAS then refreshing it from production Live Cache......
Please share your words of wisdom. Thanks! - Will S.

Hi Will,
I think LiveCach refresh with production is not required. But you need to down the LC and then start it.
LiveCach is a temporary storage area and it will refresh with database.
I suggest please post this in BASIS forum.
Regards,
Kishore Reddy.

QQ about Camera Raw Cache and why mine is empty

Quick question about Camera Raw Cache:
Mine is empty. Always.
I've read that the Develop module stores information on photos it opens in the Camera Raw Cache, while the Library module stores its previews in the LRDATA directory adjacent to the Lightroom Catalog. I've also read that the former can be stored anywhere and is limited to a size specified in Preferences, while the latter must accompany the Catalog file and has no cap on its size.
So why is my Camera Raw Cache always empty? I go in and out of the Develop module, edit, switch among photos within Develop, view images at 1:1 and larger within Develop, etc. Shouldn't that cause cache entries to be generated in the Camera Raw Cache? I've tried moving my Camera Raw Cache from within Preferences, and I have the size of the cache set to 30 GB with plenty of room on the drive, but it's still always empty.

Ah, yes. I shoot only JPGs. Funny how none of the documentation or tutorials mention that. The ones I've seen all imply that Lightroom uses Raw format internally when editing photos and that's why it needs a Camera Raw Cache for holding those internal files in the Develop module. I thought whenever I opened a photo in Develop, Lightroom was converting my JPGs interally to a proprietary Camera Raw format for editing them. Guess not, then.
So where does Lightroom hold all of its internal files for JPGs that I'm editing in the Develop module? Does it use the same files it generates in the Library module for 1:1 previews? (That's so different from what the tutorials say -- for example, around 11:00 on Julieanne Kost's tutorial on optimizing Lightroom, she never says she's only talking about working with Raw format.)

How to install Live cache in SCM 5 for APO

Hi gurus...
i have recently installed scm 5 on windows 2003 server with sp1 ,oracle 10g as database..
i have entered trans lc10 and saved it.
now when i click on livecache monitoring it's showing errors like this
LiveCache :display error log
Name and server      :MMS-skynet
DBMRFC Function :DBM_Connect
Error                      : DMB error
Return Code           : -4
Error Message        :database instance not found...
any help will be grateful to me as i am struggling to find a solution for this problem
thanks
srikanth

Hi srikkanth,
Please use the following link to check whether the installation is done as per the standards.
http://help.sap.com/saphelp_scm70/helpdata/EN/48/10a673486b3d1be10000000a42189d/frameset.htm
I hope this will solve your query.
Please confirm
Regards
R. Senthil Mareeswaran.

Data movement from R/3 DB to APO DB and to Live cache

Dear APO Experts,
I have few questions on live cache and how it works, I understand that Live cache is memory resident database. below are my questions.
1) What sought of data move from R/3 DB to APO DB and then to Live cache DB
2) When data moves from APO DB to Live cache, till how much duration that data stays in live cache
3) And how does data gets pulled in to live cache from APO DB
4) Why do we require live cache logs while data never gets commited to hard disk
5) Do we ever add a datafile to Live cache DB
any info that you provide on this will be really helpfull to me
Thanks,
Chetan

Hello Chetan,
As you know, itu2019s MAXDB/liveCache forum.
What is the version of your system?
The is documentation available at:
   SAP liveCache technology
< Please review document u201CWhat is SAP liveCache technology?u201D >
Sap documents at service.sap.com/scm -> Technology:
u201CliveCache overviewu201D and u201CIntegration overviewu201D
For SAP liveCache documentation also see the SAP note 767598.
Go to SAP link Best Practices for Solution Management: mySAP SCM at   SAP liveCache technology ...
And Review the document u201CManage APO Core Interface in SAP APO (3.x) / mySAP SCM (4.x/ 5.0)u201D
1. As you saw in the reference documents the data transferred from the connected R/3 system to APO.
And the transactional data could be uploaded to the liveCache, if you downloaded them
to the APO database cluster tables first. This procedure steps are running during the
system upgrade < for example, from SCM 5.0 to SCM 7.0 ) u2013 report /SAPAPO/OM_LC_UPGRADE_70 steps. Or you want to migrate the
liveCache to another operating system or convert your system to Unicode,
and therefore you want to back up the liveCache data first so that you
can reload it into the liveCache afterwards - SAP Note No. 632357.
2. Could you collaborate more on this sentence. Could you give examples?
3. u201CAnd how does data gets pulled in to live cache from APO DBu201D
    The data are not pulled from the APO DB to liveCache.
     When you changed the APO data on the system the LCA procedures have been called from ABAP. The objects stored in the class containers in liveCache can be accessed and manipulated only via LCA routines. The registration of the LCA routines is done automatically when the liveCache is started by the LC10. The LCA procedures in the LiveCache are written in C++
and shipped to the customers as binary LCA libraries(LCA build) together with the LiveCache.
< See more details in SAP Note No. 824489 or 1278897 as of SCM 7.0 >
4. See the SAP notes:
               869267     FAQ: SAP MaxDB LOG area
             1377148     FAQ: SAP MaxDB backup/recovery
5. You could run the quicksizer & estimate how much data you are planning to have in liveCache.
     Also the amount of data could be increased by the creation of the new data in APO by users
     Or another reason u2026
     In general you will add the datavolume to solve or prevent the DB_FULL issue,
     See u201C17. What do I do if the data area is full? u201C in SAP note 846890.
Thank you and best regards, Natalia Khlopina

What is Live Cache in APO

Hi Gurus,
I am working on APO datasource in SNP,
How do the live cache filled up? I have built a cube top of a custom datasource (9AZSNP), everything works fine and i want to know what is behind the live cache, is it directly a user entry planning version template or any underlying tables.
Please advise.
Thanks. Gowda

Hi,
The datasource will use only planning version template, and data will trabsfer from Planning area to BW. Regarding Liveche you talk to APO guys,,, it will store data and it is dynamic..
Check
Feeding Cube from Live Cache
Re: Livecache for SCM/APO
Re: what is the use of Livecache,why can't we go with relation databases...
Thanks
Reddy
Edited by: Surendra Reddy on Mar 7, 2009 5:39 AM

BW reporting from APO live cache

It has been 4 years since I have worked on a BW/APO project. Back then, I know that in APO you could backup live cache and then use the backup as the datasource for reporting in BW. Is this still the same or can you go directly against live cache now.
Thanks,
Dean

Hi Somnath,
Can you pl. give me the reference where running reports from internal APO-BW directly is recommended by SAP?
We have a similar situation with our client. It is possible to do reporting from APO cubes directly, but we are not sure since I found this in once of the SAP presentations
SAP recommends for customer to prepare separate systems for APO and BW.
Reasons
The APO system will be tuned for optimal APO functionality performance such as calculating forecasts in demand planning or deriving ATP values
The BW system will be tuned for optimal query performance in order to return results in a timely fashion.

Migration and Live Cache Doubts

Hello,
I need to migrate Windows 2003 Server 32-bit/MAXDB 7.6.0.035 for Windows 2008 Server 64-bit/MAXDB 7.6.0.035 and have doubts:
1 - What is the best way to accomplish this migration? Via Sapinst? If there is another way, how?
2 - In a note "1409895 - Windows 2008: TCP / IP communication MaxDB / liveCache is slow," reports to
upgrade to a new version of SAP MaxDB / liveCache. If I upgrade to MAXDB7606_14-20001288.SAR (MaxDB 7.6.06.14
Server Package) already solved?
    I'm confused about this because in the Live Cache "My Company's Application Components" SAP-SCM "-SAP
SCM 5.0 Component-by-Entry SAP liveCache the last SAP MaxDB / liveCache 7.6.03.12 Security Patch
is MLCSEC7603_12-10003432.SAR, but the version of MaxDB is 7.6.0.035
Sorry my questions but don´t know very about MAXDB.
thank´s for any help

Hello Emerson Eduardo do Espirito Santo,
1. It will be best for customer to create the SAP message and get the expert SAP support.
2. Please check and answer on the questions to get clear on your project first:
What is the version of your system which is planning to be migrated?
      SAP ECC 6.0 or SCM 5.0 ?
What MAXDB software do you have on the Windows Server 2003 32-Bit?
    Post output of the command:
      sdbregview u2013l
3. u201CI don´t know if I need the Live Cache.u201D
->Why you was writing about the liveCache?
->Could you ask the customer what versions of the systems they have in the landscape?
->If you login to the SAP ECC 6.0, top menu: system->status
What is the database of the system?
4. Please see the SAP notes 1014782 and 960769, if the customer have SAP ECC6.0/MAXDB 7.6 on Windows Server 2003 32-Bit and want to migrate SAP ECC6.0/MAXDB 7.6 on Windows 2008 Server 64-bit version.
Customer can use backup and recovery to perform a homogeneous system copy of a MaxDB database instance, SAP Note
129352. For more information about the procedure, please, see the installation documentation about the homogeneous system copy.
5. Please give customer the reference to the SAP note:
              1020175     FAQ: MaxDB installation, upgrade or applying a patch
in case of question on how to apply the MaxDB kernel patch.
Regards, Natalia Khlopina

Hi having a problem upgrading SCM 4.1 APO Live Cache

Hi I am new to SCM and I came into a project that was already started, I am doing a SUM upgrade and its at the upgrade of Live Cache I need to run the report /SAPAPO/OM_LC_UPGRADE_70 and perform all steps in section A. when I try to run the report it comes back "No shared library for the database with ID LCA" I checked LC10 and saw in the Settings that the database is still pointing back to the source system it was copied from. Like I said I walked into this in the middle the they are upgrading from SCM 4.1 to 7.0EHP3 on SQL 2012 and Windows 2012 so they built the 2012 Vm installed the Central services and when they installed the DB it was an attach / detach method and I installed the DB instance. Question should any of the file directories have come with the attach db there are no sapdb in the directories do I just install the live cache and that installs the maxdb and makes the directories /sapdb/ because I see them in the source system? I tried installing the live cache that came with the original system but it had errors.

Hi All,
I went ahead with Option 0 and it asked me for Kernel file and i provided the files.
I checked logs in /sapdb/wrk directory and i see that Installation of SAP livecache finished successfully.
From LC10 i gave database connection name (LCA) and clicked on live cache monitoring and it comes back with an error
Name and Server : LCA - XXXXXXX (XXXXX = Server Name)
DBMRFC Function: DBM_EXECUTE
Command: dbm_version
Error: DBM Error
Return Code : -4
Errror Message: database instance not found.
Application Server: XXXXXX                     ( Windows NT )
1. Connect. test with "dbmcli db_state"
     Error! Connection failed to node XXXXXXX for database LCA: database instance not found
     External program terminated with exit code 2
2. Connect. test with command mode "dbmrfc db_state"
     Name and Server     : LCA - XXXXXXX
     DBMRFC Function     : DBM_EXECUTE
     Command             : db_state
     Error               : DBM Error
     Return Code         :         -4
     Error Message       : database instance not found
3. Connect. test with session mode "dbmrfc db_state"
     Name and Server     : LCA - XXXXXXXX
     DBMRFC Function     : DBM_CONNECT
     Error               : DBM Error
     Return Code         :         -4
     Error Message       : database instance not found
4. Connect. test with "native SQL" ( LCA )
     For detailed information, see the developer trace for work process:          1
From the OS level i gave command dbmcli db_enum and i get OK as reply.
Can someone please let me know how to resolve this issue.
Regards,
Ershad Ahmed.

LC-10 - Live cache

Hi Guys,
IF i stopped live cache in LC-10 , what happen to the system , specially to the dynamic data's in live cache , how will it impact APO system and R/3 system
if i want to bring back to original status of live cache what i have to do
Right now i stopped and started again live cache, then i went to apo system and opened product view of particular product system says live cache not available
but the live cache i started again
Please give some feed back on this issue
Thanks
Raj

Hi
Thanks for kind guidelines
here is my exact problem, currently two system APO and R/3 is running smoothly with CIF
Accidentally i stopped LiveCache and started again
but when i go to apo Product view , i entered the product and location to view those existing planned order and sales order
But the system says that LiveCache not available
Please explain what is the reason for it , i need to activate all the integration models in R/3 again
please some one help me in this regard
Thanks in advance
Raj

Production orders not updated in Live Cache

Hi All,
We are currently facing a strange issue. Planned orders created in APO are converted into Production orders in R/3. When they are CIFfed to APO, those prodcution orders are captured in Product view but are not updated in either /SAPAPO/OM16 or Production list (/SAPAPO/PPL1). In these two transactions the production orders are not visible but their respective planned orders are showing up.
When delta report is executed for Production orders with "Consider Requirements/Receipts" as sub-object, these orders are captured with Error code 501 (Requirement/Receipt for the order exists only in R/3). When pushed to APO, these orders are updated in the Live Cache.
Can anyone share your thoughts on what could be the root cause for this issue.
Appreciate your thoughts
Thanks,
Sai

Thanks Vikas and Senthil,
Its not the issue with all the Production orders. The issue is with only few orders and we are in the process of tracing out the pattern.
Our Primary concern is that the orders captured in the delta report are visible in Product view even without taking any action in CCR but are missing in OM16. Its only after taking the action those orders are visible in OM16. I believe the data in the product view is read from Live Cache and the Live Cache contents are displayed in OM16. So, whatever orders visible in Product view have to be displayed in OM16 which is not happening.
Please let me know if I am missing anything.
Thanks,
Sai

To remove warning message " CONNECTION TO LIVE CACHE FAILED"

Hi,
I am working on a stand alone SNC system , and I am testing it .
We have not installed Live cache in this system
We are creating master data directly in SNC system
never faced issue while creating location , Business partner
But while creating Product and location product as master go following warning message " CONNECTION TO LIVE CACHE FAILED"
once I click on CREATE , but if I press enter instead it takes me to following screens for master creation
We have even deactivate the live CACHe but still get this warning message,
H0w can i remove this warning mesaage and get in the following master creation screens directly
Regards
Manas Malhotra

Hi Experts,
IN the above issue i mentioned , forgot to tell you that once i try to save product or location product it again give me the same error and doent have the master
but once SNC is a stand alone system should save it even with out the live cache
there should be some setting to make this system not depended on live cache and still save all the data
please help with this
Regards
Manas

Live cache data deletion

Hi Friends,
We are facing one strange problem with our Live cache.
We have DP data in Livecache. due to some reasons planning results are corrupted.
So we have deleted time series for DP planning area and recreated time series.
Here what we found is even after deletion and recreation of time series for planning area still
the key figure data exists in live cache and can see in interactive planning book.
Can some one please give some hints what went wrong.
Any other Live cache related programs or jobs need to run to get rid of the problem?.
Regards
Krish

Hi Thomas,
You are right. after running /SAPAPO/TS_PSTRU_CONTENT_DEL all CVCs for the POS are deleted
and there are 0 CVC left.
but again i have Generated CVCs from Infocube (possibly same old combinations are generated since the infocube is same).
Now i have initialized planning area and then accessed the selection id in interactive planning.
Surprisingly still i can see key figure values in planning book.
Here are steps what i did:
1. Deleted time series for PA (de initialization)
2. Deleted CVCs from POS
3.Deactivated POS and reactivated POS
4.Generated CVCs again from Infocube
5.Created time series for PA (re initialize)
6.Loaded selection id in interactive PB.
7.Still i can see key figure data for loaded CVCs.
Some how the data is not getting cleaned in livecache inspite of doing above steps.
data might be stored superfluously in live cache.
I want to know any additional reports are available to get rid of these kind of issues.
Regards,

What are the possible live cache issues turn up for demand planning?

HI all,
Can anyone tell me the issues that may arise iin live cache and how to ensure the performance and maintenace of live cache that a planning area is utilizing it.
if the utilization is high how to bring it down!!
Can anyone pls guide me on this!!!
Thanks
Pooja

Hi Pooja,
1) Accumulation of logs created during demand planning jobs will have an impact on performance
and affect livecache and hence to be cleared periodically
2) Livecache consistency check to be performance at planned intervals
which will reduce livecache issues
3) Through om13 transaction, you can analyse the livecache and LCA objects
and act accordingly
4) You can also carry out /SAPAPO/PSTRUCONS - Consistency Check for Planning Object
Structure and /SAPAPO/TSCONS - Consistency Check for Time Series Network related to
demand planning to avoid livecache issues later
Regards
R. Senthil Mareeswaran.

LIve cache and why BW in apo

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