Adaptive RFC... metadata cache.

Just curious...Is there a way to force a re cache of the RFC metadata.
Regards
Pran

Hi Pran,
currently, the only way to "recache" or initialize the Metadata cache is by restarting the Netweaver J2EE Engine.
As a matter of fact, whenever (structural) changes are done in a backend (such as adding fields to DDIC Structures), then the engine must be restarted. It is not necessary to reimport, rebuild, or redeploy, but it is necessary to restart
This will be improved in future releases.
Ciao, Markus

Similar Messages

Invalidate the Adaptive RFC Dictionary Cache

Hi All,
I had to do RFC interface structure changes for a Webdynpro JAVA application.I had deployed the application and used the administrative function "Invalidate Adaptive RFC Dictionary Cache" within the Web Dynpro console" to explicitly invalidate the metadata cache..
Before using this tool, I was not able to run the application.This tool helped to run the application.
But When I Submit the data to the RFC from this application I get the following Exception:
com.sap.mw.jco.JCO$MetaData.getType(JCO.java:10210)
I understand from the SAP note 859950, Metadata is not invalidated without J2EE Engine restart.
Is there any update from SAP after this note..Pls let me know if some one has done a workaround instead of restarting the SAP NW Application server.
Thanks, Sethu

We went through this same issue many times and we opened an issue with SAP a few months ago.
The invalidate is very limited and does not handle a clustered server architecture. It is meant only for a single node, single server setup. All of our environments are multi-node and multi-server.
The tool will only invalidate the node that the Basis Administrator is currently logged onto. Therefore if your server architecture consists of > 1 node and/or > 1 servers then you will have nodes/servers that still have the previous version of the metadata cached.
SAP said the Basis administrator would have to log onto each node and run the invalidate tool. In a multi-node setup there is no easy way to do this because there is no control which node you will be put on. If you have 1 node per server then yes you can log onto each server and run the tool.
In the end SAP said they do not support the Invalidate tool in a multi-node/multi-server cluster.
They said to perform a J2EE restart, period.
Hope that helps.
Dean Cyril Wood

Invalidating rfc metadata cache

hi all,
i want to invalidate rfc metada cache through adaptive rfc metada cache invalidation tool in webdynpro console..
can any one plz suggest me the path to find that.
thanks in advane
seshagiri

hi juan,
it was very helpful solution to our problem that is invalidating rfc metadata.
after i gone through the pdf,i found it is for NW04S or 7.0 SP12
but v r using SP09
so i beleive upgraing is the only solution.right
or can u suggest any other solution.
thanks in advance
seshagiri

WD Java RFC metadata cache invalidation without recycle JAVA

Since we are in a high availability production system, we cannot recycle or CE instance. There are times were the RFC metdata invalidation does not work and the only things that forces it is a recycle of the CE system.
This is contrary to what SAP has publicized, so is there a process in NWA or a single process (and NOT the server0 process) that we can refresh without stopping and starting the java engine.
Much like Visual Administration is there a single service we can stop and start to ensure the engine stays up and running and available?
Thanks
Weyland Yutani

Hi Weyland ,
did you check the guide ?
Metadata Cache Invalidation for Adaptive RFC Models
http://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10465350-b4f5-2910-61ba-a58282b3b6df
There's a solution in this guide which explains how to proceed to avoid engine restart in case of ARFC.
(I don't know your engine release, but if it is >= 711, then you may welcome this guide as well:
Using an Adaptive RFC 2 Model in Web Dynpro Java
http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/50f7192d-2808-2d10-189b-df3fa5f71abf )
I hope this helps.
Best Regards,
Ervin

J2EE RFC Metadata cache refresh

Hi All,
I've searched a bit on this forum but can't quite find the answer I'm looking for...
Is it possible to perform a cache refresh without having to restart the server, after making changes to an RFC model and deploying it? It's a pain in the neck to have to keep restarting DEV, QA and PROD everytime we move something through the CMS that has changes to models.
I would have thought the assembly step from consolidation to production would have solved this problem but it doesn't.
Thanks,
Gareth.

> Hi Gareth,
> Several stacks like Web Dynpro, Metadata Interface,
> e, JCO etc read the ABAP metadata and cache it on the
> J2EE Engine. Hence the older metadata still remains
> cached.
> Solution:
> 1) If the interface of a function module is changed
> on the ABAP side, the restart of the J2EE application
> server updates the meta data caches on Java side. A
> restart of the ABAP application server is not
> necessary.
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> 2) People think about a option to update the meta
> data cache without a restart of the J2EE application
> server. But nothing in detail is planned at the
> moment.
>
>
>
>
>
>
> Regards,
> Arun
Hi Arun,
I understand what is happening and how it works and why... I was simply asking if there is a way to refresh the J2EE cache without restarting the server?
I think this is something we really need included in future SP's as it is a pain. As mentioned, I would have throught the assembly/import step in the NWDI CMS would have done something to refresh the cache when an SC is imported into the Production system.
Gareth.

Error msg-Adaptive RFC reimport could lead to inconsistency of R/3 metadata

Hi Experts,
I am trying to reimport the model for Webdynpro application.
I wanted to include more BAPIs to the existing model.
When i am trying to do that I get pop up, with following message;
"Adaptive RFC reimport could lead to inconsistency of R/3 metadata cached on J2ee server.
Thus it is recommended to invalidate the cache this could be done either by re starting the J2EE server or by using adaptive RFC metadata cache invalidatation tool within webdynpro Console"
Could anyone one help me in resolving this?
Thanks and regards,
Pradnya

Hi,
When you reimport an RFC/BAPI the metadata which is stored in the cache is not cleared. So it still refers to the old RFC/BAPI metadata. We need to clear this. This can be done by either restarting the server or webdynpro console.
For Clearing through webdynpro console the version should be NW04 or 6.40 SP21 Onwards 2. NW04S or 7.0 SP12 Onwards
Check this link.
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10465350-b4f5-2910-61ba-a58282b3b6df
Thanks,
Gopi

Metadata Cache Invalidation for Adaptive RFC Models

Hi,
Im trying the tutorial of the document: Metadata Cache Invalidation for Adaptive RFC Models.
Ive downloaded and deployed the EAR for NW7.0 on my server, but when I try to list the JCO destinations I have the following error:
java.lang.NoSuchFieldError: flush_cache
at com.sap.invalidation.InvalidationView.onActionGetSLDJCOs(InvalidationView.java:215)
When I try to invalidate a dictionary, I have the message:
Cache for Dictionary com.unilog.product.search.model.types.SearchProductModel invalidated
But the tooltip value is not updated in my application...
Can anyone give me some tips to use this component?
Thanks in advance.
Regards,
Claire

hi friends
u see this weblogs&pdf,this is helpful for u
/people/bertram.ganz/blog/2007/01/08/the-top-12-hottest-sap-notes-every-web-dynpro-java-developer-must-know
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/f3f93ee7-0c01-0010-2593-d7c28b5377c2
Regards'
vino

How to install the metadata cache invalidation tool

Hi,
I have a problem in using JCO destinations for Adaptive RFC models.
I went through the below pdf and they mentioned metadata cahce invalidation tool and it is not installed in the portal
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10465350-b4f5-2910-61ba-a58282b3b6df
please let me know how to install metadata cache invalidation tool
points will be rewarded for sure for the helpful answers

I installed the Meta data cache invalidation tool using SDM and when i am trying to run that application from Content administrator it is throwing an exception
The currently executed application, or one of the components it depends on, has been compiled against class file versions that are different from the ones that are available at runtime.
If the exception message indicates, that the modified class is part of the Web Dynpro Runtime (package com.sap.tc.webdynpro.) then the running Web Dynpro Runtime is of a version that is not compatible with the Web Dynpro Designtime (Developer Studio or Component Build Server) which has been used to build + compile the application.*
Note: the above hints are only a guess. They are automatically derived from the exception that occurred and therefore can't be guaranteed to address the original problem in all cases.
please let me know how to resolve this issue
Points will be awarded for sure
Bala

How to install metadata cache invalidation tool

Hi,
I have a problem in using JCO destinations for Adaptive RFC models.
I went through the below pdf and they mentioned metadata cahce invalidation tool and it is not installed in the portal
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10465350-b4f5-2910-61ba-a58282b3b6df
please let me know how to install metadata cache invalidation tool
points will be rewarded for sure for the helpful answers

This tool is already installed on your system.
1) navigate to http://<hostname>:<port>/index.html
2) Click on "Webdynpro"
3) Click on "Web Dynpro Console"
3) Login as an Administrator (any user with admin priv's is ok).
4) Notice the last entry in the list

Invalidate ARFC Metadata Cache

Hi,
I am working on NW 7.0 S 12.
Everytime I make changes to my Adaptive RFC I require to take a J2EE server restart to invalidate the metadata cache. I am aware of the 'Invalidation of ARFC Metadata Cache link under Web Dynpro Console on the Porta
I am unable to find this link under Web Dynpro Console -> Admin Menu.
I found the document [Metadata Cache Invalidation for Adaptive RFC Models|http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/10465350-b4f5-2910-61ba-a58282b3b6df]
on SDN by Arun Bhat J which says I can download EARs from SDN for NW7.0 and deploy as a Web Dynpro application.
I have tried this activity by importing the file structure in NWDS as a Web Dynpro Application/ J2EE Application/ Java Application. None of these helped me deploy file structure.
I would like to make this link of 'Invalidation of Cache' available on the portal. How can I achieve this. Also, I have downloaded the files mentioned in the document. How can I use this to solve my problem.
Thanks in advance.

Leo van Hengel wrote:
> However my real advice would be to patch your portal. SP12 (2007) is really old
>
> Cheers,
> Leo
We have the same problem in CE7.2.
Everytime when we change structure in ABAP or in WS - we have to restart CE
cliaring JCO Cache in nwa "JCO monitoring" helps 50/50...
Edited by: Pavel Korgenevskiy on Feb 3, 2012 6:01 AM

Problem in displaying a field in webdynpro using Adaptive RFC model

HI,
I created a webdynpro application using adaptive RFC model and i have a problem in displaying one of the output fields.
When i execute the function module it is giving the exact value for my output field in this case telephone number (of type STEXT which is char with length 40).But when i am trying to display that telephone number in webdynpro application it is taking only first 4 digits.
i deleted the model and recreated it still it doesnot work.
please let me know how to resolve it.
points will be awarded for sure
Bala

Hi Bala,
Whenever you reimport the model server restart is necessary otherwise the changes will not get reflected. You will get an error when you deploy the application.There is no go around except restarting the server as the meta data gets cached in the server as long as the server is runnig.So, Once you restart the server the cache will be cleared.
Check once again whether you are fetching data from correct BAPI field. Still problem persist try debugging.
Regards, Suresh KB

RFC Adapter RFC to File

Hi,
Can somebody help me to view this thread. I am learning XI using RFC to File and I have got some difficulties in undestanding the Adapter Configuration.
/people/michal.krawczyk2/blog/2005/03/29/configuring-the-sender-rfc-adapter--step-by-step from Michal.
When I select this thread, I get blank page.
Thanks

Hello MK and Shabarish,
I need a little more help from you.
Here is XI Scenario.
Want to send Material info using RFM from system A to System B via XI.
Process: In System A, I create an RFM and send the data via dest paramter.
It looks like this.
Call Function
     dest 'SYSTEMA_SENDER'
1. I created T - RFC Destination in systemA.
    RFC Name     SYSTEMA_SENDER
    gateway host gbdsc1 ( using smgw)
    serveric          sapgw11
    Program id     SystemA_Sender
                         Registered server program, unicode.
2. In XI box, in Integration configuration, Created RFC sender channel with the following paramter
    Adapter Type   RFC - Sender
    RFC Server Parameter -
             Applcation server(Gateway) gbdsc1    ( As in RFC dest System A )
             App service(gateway)           sapgw11
             Program ID                          SystemA_Sender
    RFC Metadata repository
            Application Servr         ( What do I enter here is it System A)
            System Number
            Logon on User
            Logon pw
            Client
             Language
Finally,
In system A when I do connection test I get the following errors
Error: Program SystemA_Sender not registered
Location SAP-Gateway on gbdsc1/sapgw11
Detail:TP SystemA_Sender not registered
and other errors
Can you identify any correction required for the above RFC destination and RFC configuration?
Do I need to register the program and if so how?
Your help is deeply appreciated.
Regards

Commit fault: com.sap.aii.adapter.rfc.afcommunication.RFCAFWExpection: lo

Hi,
we are doing a RFC to file scenario. it works fine in DEV and QA. but in production sporadically it shows commit fault: com.sap.aii.adapter.rfc.afcommunication.RFCAFWExpection: lo error in SM58.
I have refreshed the cache and all the necessary componets like Sender C.C, receiver C.C, Receiver determination, interface determination, sender agreement and receiver agreement is present.
how to solve this issue. its production issue. pls help ASAP

Hi,
The ECC's business system has Technical System,Client number and Logical System Name.
Also the same is reflected in BS of Integration Builder. it has the logical system, R/3 system and client number in Adapter specific identifiers.
Can you also let me know how to check the complete error message in Tcode SM58. when i double-click on the error it just shows "Commit fault: com.sap.aii.adapter.rfc.afcommunication.RfcAFWException:lo". how can i view the full message

Error in Import Adaptive RFC Model

Hi SDN,
I am trying to develop an application using Import Adaptive RFC Model, while creating a model i could not able to connect to the backend system after giving the single server parameters. When i click on the next button a pop up is displayed with an error message *"User Name or Password wrong" *.
But i could able to login to R/3 with the same userid and password from SAP logon pad.
Really i am at Six and Seven's to trace out this error. Please suggest me how to overcome this error and create the model succesfully.
Regards
Basha

Hi Praveen & Chaitanya
Thanks for your quick response and informative threads.
Actually in order to import an adaptive rfc model
I have right clicked the model node to create a model and given the model name,package name,model data and metadata names and clicked next button. Then in the next screen
Tab Strip -> Single Server:
Host name :
System Number :
client details:
Tab Strip -> Load balancing:
System :
Message Server:
System Name:
Group:
(in Tcode: SLMG i have added the group public also)
client details:
After entering the required details either in Single Server or Load balancing and clicked the next button I could not able estabilish a connection to the backend R/3 and get the list of Bapi's or RFc's. Instead i am getting a pop up message "User Name or Password Wrong". I could not able to proceed from here.
But with the same above parameters i could able to logon to R/3 from SAP Logon Pad. I have tried by giving the user name in Cap's and small letters but no use.
As i was strucked at the intial step while creating the model but not during the execution of the program, as far as my knowledge is concerned i think we no need to worry on SLD or JCO connections during the creation of the model. Please correct me if i am wrong and suggest me to rectify the error.
Regards
Basha

Clear Metadata Cache

I had an error that I have listed below and had to clear the metadata cache to fix it. I do not have the metadata cache activated under user option so I am not sure why I had to clear the cache to get things working. Can someone explain why I had to do this and where the metadata cache is located?
Error:
Index was out of range. Must be non-negative and less than the size of
the collection.
Parameter name: startindex

Hello Jeroen,
There is no other possibility. If you adjusted and reimported a RFC model, you need to restart the J2EE server.
Regards,
Christophe

Adaptive RFC... metadata cache.

Similar Messages

Maybe you are looking for