Delta cache refresh Vs Complete cache refresh

In SXI_cache
we can view Delta cache refresh and Complete cache refresh
can you explain Delta cache refresh Vs Complete cache refresh???

hi Gabriel,
Only execute Complete Cache refresh, if Delta refresh does not solve the issue! Delta cache refresh should resolve all known issues.
Complete cache refresh can run long time and delay message processing in this time.
for more details
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/c0332b2a-eb97-2910-b6ba-dbe52a01be34
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/1a69ea11-0d01-0010-fa80-b47a79301290
*PS reward points if useful**
Regards,
Sumit Gupta

Similar Messages

"Delta Cache Refresh" option not working in SAP XI 3.0

Hello All,
We are using an SAP XI 3.0 system with SP9 installed on the same. The system is pretty much stable with all the components including SLD running fine. But!, when I run the Transaction "SXI_CACHE", the "Start Delta Cache Refresh" Button appears as Nullified and hinders the option for refreshing the cache. Could anyone guide me through this and make it work as we need to essentially do this step for the scenario we 're working on.
Thanks & Regards,
Venkat.

Venkat,
Could you please check the status of you last cache refresh. There should be a traffic light displaying on the right part of the screen. If the last update was unsuccesful. Delta refresh isn't possible.
Best regards,
Alwin

Delta cache Refresh shows error

Hi,
In SXI_CACHE
I did Delta cache Refresh
In XI RunTime Cache Status shows :
1. cache contants are up-to-date (Green light)
2. Error during last attempt to refresh cache(red error)
Adapter Engine Connect Data Cache shows the following error
04D3344F63C6074CBB50E4E910CDB54A
AE Name: af.sxi.eccserver
Adapter Engine URL: http://eccserver:50100/MessagingSystem/receive/AFW/XI
USER: XIISUSER
whats meant by this error ? How to rectify this ?
Thanks,
srinivas
Message was edited by:
        srinivas

Is you adapter engine...centalized or decentralized   and is it a new installation or was it working before....
   If its centralized check the communication channels...If its decentralized you need to select the appropriate name in the drop down list for adapter engine option else you need select it as Integration server.
Also check whether you specified the exact adapter engine and XIAFUSER in exchange profile(Adapter framework node)...also check whether the users XIAFUSER and XIISUSER exists and are not locked......
Hope this helps...
Regards,
Ravi

DELTA CACHE REFRESH getting the status red

Hi,
while doing the DELTA CACHE REFRESH getting the status red. There be a traffic light displaying RED on the right part of the screen.
regards,
bobby

I think you are talking about sxi_cache related refresh. If yes, then you may check the following:
1. Service user PIISUSER is not locked.
2. RFC Destination INTEGRATION_DIRECTORY_HMI is working properly.
Regards,
Prateek

In t.code sxi_cache,start delta cache refresh not enable

hi every one,
in my xi server in t.code sxi_cache,start delta cache refresh not enable.plz provied the solution....
with regards,
sai kiran

Hi kiran,
Check the below link it might help you
[http://help.sap.com/saphelp_nw04/helpdata/en/5e/f85141196ff423e10000000a155106/content.htm]
Regards,
Gokul B

Error in Full and Delta CPACache refresh.

Hi Experts,
In our production environent we have a SOAP -> XI - > PROXY scenario [Synchronous].
The Consumer of the WebService has reported an error:
500_Internal_Server_Error = SOAP:Server_Server_Error_XIAdapter_ADAPTER.JAVA_EXC
When I checked there are no messages in SXMB_MONI , but when I checked the Cache Refresh History I found that
there was error in both Full and Delta Cache Refresh. But the restart of the XI(Production) server resolved the issue.
The error is as shown below:
<?xml version="1.0" encoding="UTF-8" ?>
- <CacheRefreshError>
<EngineType>AE</EngineType>
<EngineName>af.pxi.su0956</EngineName>
<RefreshMode>F</RefreshMode>
- <GlobalError>
<Message>Couldn't parse Configuration Data cache update XML string from Directory.</Message>
org.xml.sax.SAXException: JavaErrors Tag found in cache update XML. at com.sap.aii.af.service.cpa.impl.cache.directory.DirectoryDataSAXHandler.startElement(DirectoryDataSAXHandler.java:157) at com.sap.engine.lib.xml.parser.handlers.SAXDocHandler.startElementEnd(SAXDocHandler.java(Compiled Code)) at com.sap.engine.lib.xml.parser.XMLParser.scanElement(XMLParser.java(Compiled Code)) at com.sap.engine.lib.xml.parser.XMLParser.scanContent(XMLParser.java(Compiled Code)) at com.sap.engine.lib.xml.parser.XMLParser.scanElement(XMLParser.java(Compiled Code)) at com.sap.engine.lib.xml.parser.XMLParser.scanDocument(XMLParser.java(Compiled Code)) at com.sap.engine.lib.xml.parser.XMLParser.parse0(XMLParser.java(Compiled Code)) at com.sap.engine.lib.xml.parser.AbstractXMLParser.parseAndCatchException(AbstractXMLParser.java(Compiled Code)) at com.sap.engine.lib.xml.parser.AbstractXMLParser.parse(AbstractXMLParser.java(Inlined Compiled Code)) at com.sap.engine.lib.xml.parser.AbstractXMLParser.parse(AbstractXMLParser.java(Compiled Code)) at com.sap.engine.lib.xml.parser.Parser.parse_DTDValidation(Parser.java(Inlined Compiled Code)) at com.sap.engine.lib.xml.parser.Parser.parse(Parser.java(Compiled Code)) at com.sap.engine.lib.xml.parser.SAXParser.parse(SAXParser.java(Compiled Code)) at javax.xml.parsers.SAXParser.parse(Unknown Source) at javax.xml.parsers.SAXParser.parse(Unknown Source) at com.sap.aii.af.service.cpa.impl.cache.directory.DirectoryDataParser.updateCentralCache(DirectoryDataParser.java:56) at com.sap.aii.af.service.cpa.impl.cache.CacheManager.updateCacheWithDirectoryData(CacheManager.java:871) at com.sap.aii.af.service.cpa.impl.cache.CacheManager.performCacheUpdate(CacheManager.java:640) at com.sap.aii.af.service.cpa.impl.servlet.CacheRefresh.process(CacheRefresh.java:104) at com.sap.aii.af.service.cpa.impl.servlet.CacheRefresh.doGet(CacheRefresh.java:53) at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code)) at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code)) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java(Compiled Code)) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java(Compiled Code)) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java(Inlined Compiled Code)) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java(Compiled Code)) at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java(Compiled Code)) at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java(Compiled Code)) at com.sap.engine.services.httpserver.server.Client.handle(Client.java(Inlined Compiled Code)) at com.sap.engine.services.httpserver.server.Processor.request(Processor.java(Compiled Code)) at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java(Compiled Code)) at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java(Compiled Code)) at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java(Compiled Code)) at java.security.AccessController.doPrivileged1(Native Method) at java.security.AccessController.doPrivileged(AccessController.java(Compiled Code)) at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java(Compiled Code)) at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java(Compiled Code))
Can anyone tell me what is the cause of this error and how restart of the XI server resolved the issue?
Thannks,

Guys,
I have deployed the below components and after this repository could not be started which gives the below error.
1000.7.11.10.18.20130529165100
SAP AG
sap.com
SAP_XIAF
1000.7.11.10.11.20130529165100
SAP AG
sap.com
SAP_XIESR
1000.7.11.10.15.20130529165100
SAP AG
sap.com
SAP_XITOOL
We have the same issue. Still the Restart did not solve ths issue.
Can anybody help? We are not able to start the XI Repository.
Our PI components are as below
com.sap.engine.services.ejb3.runtime.impl.refmatcher.EJBResolvingException: Cannot start applicationsap.com/com.sap.xi.repository; nested exception is: java.rmi.RemoteException: [ERROR
CODE DPL.DS.6125] Error occurred while starting application locally and wait.; nested exception is:
 com.sap.engine.services.deploy.container.DeploymentException: Cannot activate endpoint for message-driven bean sap.com/com.sap.xi.repository*xml|com.sap.xpi.ibrep.server.jar*xm
l|CacheRefreshMDB^M
 at com.sap.engine.services.ejb3.runtime.impl.DefaultContainerRepository.startApp(DefaultContainerRepository.java:315)^M
 at com.sap.engine.services.ejb3.runtime.impl.DefaultContainerRepository.getEnterpriseBeanContainer(DefaultContainerRepository.java:106)^M
 at com.sap.engine.services.ejb3.runtime.impl.DefaultRemoteObjectFactory.resolveReference(DefaultRemoteObjectFactory.java:55)^M
1000.7.11.10.6.20121015232500
SAP AG
sap.com
MESSAGING
Regards
Omkar

Enable delta cache buttton

hi,
can any one plz help me to enable delta cache button.
regards

Hey
have a look at the following
Check dis threads:
Unable to refresh cache contents in XI.
Error in Cache Refresh(Unable to refresh cache contents)
Cache Refresh disabled in SXI_CACHE
Thanx
Ahmad

Delta cache or compression

Hi,
I am now investigating delta cache.
if data are compressed on the cube, delta cache cannot be used. And I have heard compression is still recommended and delta cache is less important than compression.
But I think it is best when only older requests are compressed and leave some request not to be compressed on the cube,if delta cache still work, it is best to do so (and then aggregations should also have request for delta cache).
if something wrong ore there are other good way, please point them out. (excuse me, for some reason I cannot be test now..)
Kind regards,
Masaaki

Delta cache-
The delta process enables individual data from a query to be inserted into the cache. In this way, when they are changes to the data basis, the complete data for the query no longer has to be read from the database again. The results of a query are thus independent of whether the data is read directly from the database or from the cache.
A complete restructuring of the cache is always necessary, however, if metadata, master data , hierarchies, exchange rates, etc. change. But a complete rebuild of the cache object also has to be performed for InfoProviders that are not suitable for the delta process when there are changes. InfoProviders are delta process enabled when a time stamp, sequential number, or, as with InfoCubes, the request shows which entries have been added.
Dependencies
If the query is defined on a MultiProvider, you can still optimize the query runtime when you set the partitioning type accordingly.
Compression is still recommended and you cannot escape doing it ,based on the accuracy and reconciliation of your data for the period you should set up your compression strategy as once the data is compressed you cant delete (requests)it.
PS- However,you can delete compressed data using option SELECTIVE DELETE.
The typical measure taken in such situations, is to build aggregates on these cubes (instead of compression). This will not help, but only postpone the disaster to a later point in time. And at some point compression is not possible in a reasonable amount of time anymore, because deleting a partition takes so long that the whole workflow on that cube (and others later up the chain) is not fitting into the allocated timeframes.
Hope it Helps
Chetan
@CP..

Delta refresh and complete cache refresh

Hi,
iam doing the complete cache refresh and delta cache refresh in my scenario. after doing that the data's are reflecting very slowly in the RWB valuemapping cache.
sometimes it is not reflecting in the RWB valuemapping cache.
i refreshed the CPI cache and SLD cache, still it is not reflecting in the RWB.
could anyone tell me the solution for this to reflect in the RWB valuemapping cache????
Regards
sasi

Hi,
In the component monitoring check the RWB component and check the performance monitoring, may be some times performance monitoring is low because of the payload or some other conditions.
Delta Cache Refresh: Any new objects that have been created/modified during the design/configuration
                      activities are inserted into the temporary database tables when we use delta
                      cache refresh option.(Partial process refresh)
Complete Cache Refresh: All entries in temporary cache tables are deleted and a background program
                          for inserting the complete information about all the design/configuration
                          objects.(whole process refresh)

Delta and complete cache refresh.

HI,
Difference between Delta and complete cache refresh.
thanks
sunil

Hi,
There are several variants of the cache refresh mechanism depending on the scope of the cache refresh (delta only or entire cache refresh) and on the triggering component (tool or messaging component).
Delta Cache Refresh
Delta Cache Refresh involves the missing activated change lists to be included in the directory cache.
Complete Cache Refresh
To restructure the cache completely, in the menu bar choose XI Runtime Cache à Start Complete Cache Refresh.
Cache refreshing means getting the newly created component in the cache. Usually cache get refreshed automatically by SAP system and user do no thave to refresh it but in some cases the newly created component does not get dispalyed in cache. In that case this cache should be refreshed and it will pull out the new component in it.
Thanks
Swarup

Delta refresh cache in SXI_CACHE Transactions disabled

Hi Experts!
I have SAP ECC and SAP XI installed on same SAP MMC. ECC is working fine, but the Problem is with SAP XI. When SXI_CACHE transactions executed it giving the error as "Unable to refresh the cache". and the "Delta cache" is also disabled. So any can help me pls pass on the links or answers or any gud solutions I ll b thankful for them....
THANKS IN ADVANCE!!!
Sunil K Shetty

Hi Sunil,
Check dis threads:
Unable to refresh cache contents in XI.
Error in Cache Refresh(Unable to refresh cache contents)
Cache Refresh disabled in SXI_CACHE
The problem is mentioned in the above threads.
Regards,
Prasanthi.
*Plz reward for helpful answers**

Error in INTEGRATION_DIRECTORY_HMI and CACHE REFRESH

Hi guys, well after checking the forum and several blogs i can't get rid of my problem!
I have a problem concerning INTEGRATION_DIRECTORY_HMI and CACHE REFRESH.
i wanted to get a file from a FTP-Server via CC and i got error:
<SAP:AdditionalText>Error when reading HTTP destination: INTEGRATION_DIRECTORY_HMI.</SAP:AdditionalText>
<SAP:ApplicationFaultMessage namespace="" />
<SAP:Stack>Error while refreshing the XI runtime cache</SAP:Stack>
<SAP:Retry>M</SAP:Retry>
Because of this i tried to update my cache (SXI_CACHE). When i do a Delta Cache Refresh i get:
Prefix Number: entry missing for system SSID client 100.
When i do a complete Cache Refresh nothing happens at all. I also checked the cache notification in IB - Integration Directory where i fin dout that only the Integration Server (ABAP Cache) won't refresh. Well status is started but nothing else is happening.
Then i checked the RFC INTEGRATION_DIRECTORY_HMI, did a connection test where i get an Internal Server error.
Let me tell u that the systems runs very well in the last days but now i have no clue what might be wrong.
Can somebody please advice me? I already read all blogs concerning this and also did a complete system-restart....
br Jens

when you check INTEGRATION_DIRECTORY_HMI with SM59 it is normal to get
HTTP Response 500 - Internal Server Error. In this case it meens everything OK
see the rediness check, that is attached to SAP note 817920
when you start the complete cache refresh, you can see
the function module SAI_CACHE3_REFRESH_BACKGROUND in SM58. As long as you can see this entry, the cache
refresh is ongoing. If the refresh takes too long and runs on an error, try to specify another timeout in INTEGRATION_DIRECTORY_HMI or in the ICM
Best Regards
Alexander
Message was edited by:
 Alexander Wrobel
Message was edited by:
 Alexander Wrobel
Message was edited by:
 Alexander Wrobel

Problems in SLD and Cache refresh (SXI_CACHE).

Dear Experts,
I am facing SLD and Cache refresh problems in PI 7.0 on HP-UX.
1) SXI_CACHE : Last Error During Cache refresh is showing LCR_GET_OWN_BUSINESS_SYSTEM - NO_BUSINESS_SYSTEM error. And also Start Delta Cache Refresh / Start Complete Cache refresh are in deactive mode (Frozen).
2) SLDCHECK : Log says No Business System for ABC Client 100 ".
where ABC=SID. Business System INTEGRATION_SERVER_ABC is declared in SLD and client 100 is assigned.
My question is : Is this a BASIS or DEVELOPER issue? Also please let me know if you have any solutions for the above mentioned issue. Thanks in Advance.
SLDCHECK Log Snippet:
SLD server access settings:
host name: ABCXIDEV
port number: 50000
user : PIAPPLUSER
Use transaction SLDAPICUST if you wish to maintain the SLD server access data
Launching the SLD GUI in a separate browser window...
=> Verify in the browser GUI that the SLD is in a healthy running state!
Calling function LCR_LIST_BUSINESS_SYSTEMS
Retrieving data from the SLD server...
Function call terminated sucessfully
List of business systems maintained in the SLD:
INTEGRATION_SERVER_ABC
ERP_DEV_100
Calling function LCR_GET_OWN_BUSINESS_SYSTEM
Retrieving data from the SLD server...
No corresponding business system found for system ABC client 100
=> Check and maintain the SLD content for the current client

Hello,
Since this is an PI system, your XI consultant must have created/will need to create business systems in SLD for the scenario to work properly. This error is because it cannot find the business system.
You cannot point out the fingers on Basis or XI and say that it is THEIR issue. Please consult with the consultant who is doing the XI interface and check if the business systems he require are properly created in SLD. If not, create them or ask them to create it (if they are allowed to..).
From the error, what i can see is that you have defined an integration server INTEGRATION_SERVER_ABC in SLD . the XI interface is checking the required business system in the integration server INTEGRATION_SERVER_ABC in SLD but cannot find it over there. Please check the integration server INTEGRATION_SERVER_ABC in SLD and talk to the XI consultant and you will be able to fix this with their help.
Hope this helps you..
Regards,
Jazz

RFC Cache Refresh

Hi,
I am working on JDBC to RFC scenario. As there were some new changes done on RFC i have re-imported the new structure into XI and activated. Now when i run the scenario it is still taking the old structure and it is failing in sxmb_moni.
I tried full cache refresh through sxi_cache but still the same problem.
Please help me out.
Best Regards,
Sudheer

Hi Sudheer,
First Clear SLD Data Cache from IR and ID using the menu option
Environment-->Clear SLD Data Cache
Now, use XIDIRUSER to refresh the cache via below URLs -
For complete cache refresh - http://<hostname>:<port>/CPACache/refresh?mode=full
For delta cache refresh - http://<hostname>:<port>/CPACache/refresh?mode=delta
If this does not solve the issue, check transaction SLDCHECK to ensure that connection to SLD is available.
If the issue still persists, see Cache Update Problems section in [XI Troubleshooting Guide|http://www.riyaz.net/blog/index.php/2008/06/04/xipi-sap-xi-troubleshooting-guide/].
Regards,
Riyaz

Delta and Complete Refresh

Hi,
What is significance of Cache Refresh (SXI_CACHE)?
And what is difference between Delta Refresh and Complete Refresh?
Thanks and Regards,
Vijay Raheja

Hi Vijay,
You can view all cached objects by running transaction SXI_CACHE. You can see whether the cache is up-to-date or not. You can view all cached data and start a manual cache refresh.
If you suspect that a change in a Integration Directory has not been replicated to the runtime cache, you can refresh the cache manually. To refresh the cache in SXI_CACHE, from the menu choose XI runtime Cache.
In a Delta cache all the data are not replicated. Only the data that is changed from the last cache is updated.
Hope this clarifies.
Regards.
Praveen

Delta cache refresh Vs Complete cache refresh

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