RFC calls keep old buffer tables PS and PSINFO

Hello!
I have written a BSP application for an R/3 system which is release 4.6c. For that reason, we have a stand-alone WebAS which must make RFC's to the core R/3 system to retrieve and update HR data.
Originally the RFC destination to connect to the core R/3 system from WebAS was not a trusted connection, but we ran into problems with structural authorizations where the RFC was not returning all of the data for the actual user. We found that the problem was related to the fact that the RFC destination was using a hard-coded user ID to make the connection to the R/3 HR system. That particular user ID was being used as SY-UNAME in a routine used by structural authorizations, and it wasn't finding the correct data for the User ID that was entered as the RFC user. Therefore, we made the change on the RFC destination in WebAS so that now we have the "Current User" checkbox checked, the hard-coded user ID and password has been removed, and now the "Trusted System" radio button is selected. Those changes resolved our issue with structural authorizations because now the routine has the actual user ID as SY-UNAME instead of the generic RFC user ID.
I'm not sure if the RFC trusted connection is part of this issue or not, but I wanted to provide that information.
Here is the actual issue... Several of the RFC's update different HR infotypes, and most of these use function module HR_INFOTYPE_OPERATION to insert new HR infotype records or modify existing ones, etc. We started receiving short dumps and getting strange results, and I was able to track it down to the fact that the PS and PSINFO buffer tables are not being refreshed. I was expecting that these tables would be "clean" everytime I make a new RFC call. However, this is not the case. I watched this in debugger, and I see that the PS and PSINFO tables are still filled from the last RFC whenever I make a subsequent RFC! When it finally gets to the point that dialog HR_MAINTAIN_MASTER_DATA is called, it still has the old data in these tables, so it tries to process the infotypes AGAIN. This is very bad! For one thing, the previous RFC which used HR_INFOTYPE_OPERATION might have been for an applicant number (TCLAS = 'B') and the current RFC might be for an employee number (TCLAS = 'A'). We have seen this happen, and it resulted in a short dump (it's a long story - just trust me when I say that it is causing a lot of problems!).
I was able to resolve the issue in one of my function modules by adding a call to function module HR_PSBUFFER_INITIALIZE at the beginning of the function module. However, I don't want to have to add this to the beginning of every function module that I write. Also, I think that this is a problem which needs to actually be solved instead of using a band-aid like this.
This is what I want to know - Why are these buffer tables still filled from the last RFC whenever I make the next RFC? Is this because it is set up as a "trusted" connection? Is this related to the fact that my BSP application is stateful instead of stateless? Does something need to be changed on my RFC destination configuration so that each RFC starts out with "clean" buffer tables?
Thanks in advance for whatever advice you can offer me!
Shannon

I don't think this has anything to do with the trusted connection. It is because your application is stateful. If you watch in the process overview in your system you will see that with a stateful application, no only does your BSP session state remain between calls, but also you should see a thread per user for the RFC connection.
That means that the Session state is also still alive on your R/3 4.6C system for a period of time as well (RFC keep alive time). We have used this to our advantage before when building BSP applications (caching of data in Global Data of a Function Group).
However you have the opposite problem. It sounds like you would want to call the HR_PSBUFFER_INIT at the start of each transaction. If you writting this as a Classic Dynpro Transaction would you not do the same?
You might try calling RFC_CONNECTION_CLOSE as well. This should close the connection and end the state on the R/3 side. However you will have the performance overhead of reestablishing a new connection on the next call. But RFC connections seem to be very efficient. I doubt you would notice any performance difference.

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Hi Dan,
Sorry for the late reply!
do u got solution for that?
Otherwise, try with this!
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Hi,
I have an external server program, which is calling a rfc function many times the same time with different transaction types. There are transaction types, which are downloading information from SAP (only send data back to the caller), and there are transaction types which are uploading data to SAP (inserting/updating data on SAP).
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Hi,
thank you for your answer!
I have investigated something new yesterday:
I thought at the beginning, that the problem just occurs, when the system work processes are reached. The system has for example set up 15 dialog processes and the external server is calling the function 20 times in parallel. Then we normally need 5 dialog processes more. The system is taking then all 15 dialog processes and the locks got stucked.
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From my point of view, the lock from SAP gets stucked, when the limit of dialog processes is reached. It´s not working in the right way anymore...
The same is happening, when you set up in the system, that only 10 work proecesses can be used by RFC. If I have more than 10, it´s going to be critical with the locks....
WEIRD!
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I try to pass a Table as parameter to a Function Module using the SAP.Functions library (part of SAP frontend controls) from a Visual Basic (VBA) program.
The function module has been verified to work when invoked from SAP FrontEnd Function Builder.
The SAP RFC Control is created with
Set sapFunctions=CreateObject("SAP.Functions")
Following code snippet shows how I attempt to set exports and add a table row before calling the function module:
sapFunctions.Connection = sapConnection
Set sapMaterialUpd = sapFunctions.Add("Z_SD_BAPI_SALES_DATA_UPD")
With sapMaterialUpd
'set exports
 .Exports("PA_GLPUPDLEVEL") = "S"
 .Exports("PA_VKORG") = "FI14"
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 .Tables("IT_SALES_DATA_UPD").AppendRow
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 .Tables("IT_SALES_DATA_UPD")(1, "MATNR") = "W_3100"
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 .Tables("IT_SALES_DATA_UPD")(1, "KBETR") = "2222"
 .Tables("IT_SALES_DATA_UPD")(1, "KONWA") = "EUR"
End With
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 'do something with the return tables here...Else
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End If
The Call() returns FALSE and the exception is "SYSTEM_FAILURE". The connection also resets.
The local logfile that the control generates shows that an exception occurs at the point of the call:
10.02.2005 17:54:20.766 Packing Parameters for Z_SD_BAPI_SALES_DATA_UPD
Packing Parameter PA_GLPUPDLEVEL.
Packing Parameter PA_VKORG.
Packing Table 0.
Packing Table 1.
10.02.2005 17:54:20.766 *** Calling RFC Function 'Z_SD_BAPI_SALES_DATA_UPD'
10.02.2005 17:54:20.986 RFC CALL status = RFC_SYS_EXCEPTION
10.02.2005 17:54:20.986 RFC Error: RFC_IO27
-Status:CODE=CM_DEALLOCATED_NORMAL STATUS=CM_NO_STATUS_RECEIVED DATA=CM_COMPLETE_DATA_RECEIVED ID=69415076
-Message:connection closed
-Internal Status:IO HANDLE=23 DRV=EXT LINE=1420 CODE=27 : GET ID=ffff LINE=861 CODE=7
10.02.2005 17:54:20.986 Function call finished.
Seen next code snippet. If the Table object is not touched, the function call goes through without any problems:
sapFunctions.Connection = sapConnection
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With sapMaterialUpd
'set exports
 .Exports("PA_GLPUPDLEVEL") = "S"
 .Exports("PA_VKORG") = "FI14"
 'do not append a table row, for testing only ;-)
End With
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 'do something with the return tables here...
Else
 Debug.Print sapMaterialUpd.Exception
End If
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So is there something special needed here after appending the table row and before making the Call to properly attach the table as a parameter for the function module?
Can this be a bug in the SAP RFC Control? The version of the wdtfuncs.ocx is 6206.6.45.54.
Any hints are welcome!

hi All partner,
who solved this problem , I meet it too and
can't clear it.
SAPfunc := sapfunctions1.Add('z_get_sfcs_dn_mo');
SAPitab := sapfunc.tables.item ('I_DNMO');
SAPitab.appendrow; SAPitab.value(1,'MANDT') := '220';
SAPitab.Value(1,'VBELN') := '2150000001';
SAPitab.Value(1,'POSNR') := '50';
SAPitab.value(1,'MATNR') := '19-99999-00';
SAPitab.value(1,'AUFNR') := '921241512001';
SAPitab.value(1,'DEDAT') := '2005/09/09';
SAPitab.value(1,'LFIMG') := '100';
IF SAPfunc.call = true then
begin
end
else
 begin
 showmessage('call fail!!') ;
 end;
end;
RFC source code as below
FUNCTION z_get_sfcs_dn_mo.
""Local interface:
*" TABLES
*" I_DNMO STRUCTURE ZDN_MO
data: wa type zdn_mo.
LOOP AT i_dnmo.
 wa-mandt = i_dnmo-mandt.
 wa-vbeln = i_dnmo-vbeln.
 wa-posnr = i_dnmo-posnr.
 wa-matnr = i_dnmo-matnr.
 wa-aufnr = i_dnmo-aufnr.
 wa-dedat = i_dnmo-dedat.
 wa-lfimg = i_dnmo-lfimg.
 modify zdn_mo from wa.
 insert into zdn_mo values wa. --dump at here
 commit work.
ENDLOOP.
T/C: ST22 error message say at
insert into zdn_mo values wa. ---dump at here
the sapfunc.call returns fail.
Message was edited by: jorry wang

Buffer table and Locking issues

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RW
null

Locking tables using a RFC Call

Hello,
I am trying to lock a Table in R/3 from BW by calling a Enqueue Function Module which is remote enabled in R/3. The BW Call to R/3 is successful but the table is not getting locked. I wanted to know if this is something that can be done.
I have an assumption once the locking is done in R/3 the connection in R/3 is closed and its getting unlocked automatically.
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Rajeev

I have an assumption once the locking is done in R/3 the connection in R/3 is closed and its getting unlocked automatically.
Your probably right, when making an RFC call, the locking done within, would only last during the execution of that call.
Regards,
Rich Heilman

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SAP Business Connector Developer.
->IDataUtil.getIDataArray function (can't work properly using RFC CALL)( I think it's the source of problem)
I use the SAP Business Connector Developer(4.7) to get data from db2.
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the most important snippet shown below.
// Get IDataCursor to manipulate pipeline
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catch(Exception ed){
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I think the problem which the rfc can't work properly is that the method IDataUtil.getIDataArray execute unnormal.
I have set value to ORICONTENT(record list) in SAP, and it can return the record that i have set to the SAP System,
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com.wm.app.b2b.server.DBConnection db
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I have tried some adjustments, but nothing can work.
The reason That I use one jave service instead of standard flow services is I have to transfer data to more than two db2 servers, and I have to keep the consistency.
Attached please find the SAP test page (using se37) and the java service code.
May you kindly help me to solve this problem, I don't know the real reason, and which is very emergent, but i can't changed Priority(If I changed it ,the page is unuseful).
Additional,I have added some code shown below,
idcPipeline.first( "ORICONTENT" );
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else{
errMsg +=" object isnt null ";
try{
recordListIn=(IData[])curObj;
} catch(Exception ed){
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recLen=0;
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Object isnt null
ExceptionOBj: com.wm.util.Table

Hi, Mei Xie
you mentioned 'In BC, everything is ok. but call the function in the sap, Show the following informatin: ....', I think the return value of RFC is null.
have you tried to add a try catch around the RFC call, like following:
try {
IDataCursor idcPipeline = pipeline.getCursor();
} catch (Exception ...)
I'm not familiar with jave, only worked on C#, but I think try to catch the exception on RFC call is worth doing. Maybe it will descript some information around the problem.
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I don't know what 'In BC, everything is ok.' mean. I have no experience on BC, only used dotnet connector. So can you explain how you use BC for me?
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Solved by my own.

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For emergency repairs install the freeware utility Applejack. If you cannot start up in OS X, you may be able to start in single-user mode from which you can run Applejack to do a whole set of repair and maintenance routines from the command line. Note that AppleJack 1.5 is required for Leopard. AppleJack 1.6 is compatible with Snow Leopard. There is no confirmation that this version also works with Lion.
When you install any new system software or updates be sure to repair the hard drive and permissions beforehand. I also recommend booting into safe mode before doing system software updates.
Get an external Firewire drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
Carbon Copy Cloner
Data Backup
Deja Vu
SuperDuper!
SyncTwoFolders
Synk Pro
Synk Standard
Tri-Backup
Visit The XLab FAQs and read the FAQs on maintenance, optimization, virus protection, and backup and restore.
Additional suggestions will be found in Mac Maintenance Quick Assist.
Referenced software can be found at CNet Downloads or MacUpdate.
Be sure you have an adequate amount of RAM installed for the number of applications you run concurrently. Be sure you leave a minimum of 10% of the hard drive's capacity as free space.
Adding more RAM, if feasible, and a new, faster hard drive may also help pep it up a little.

CALL RFC DATA FROM TWO LINKED TABLES IN EXCEL VBA

Hi,
I am using Excel VBA to call information from tables in SAP.
This is working correctly, however I now need to be able to call information from another table where the two tables are linked by a common data field.
Example.
The first table I have lists all items in stock and contains an article number. The second table contains all article numbers and their descriptions.
I want to be able to call the first table but to have the article codes description on there aswell.
Here is the code I am currently using.
Sub GetTable()
'Connect to SAP
Dim sapConn As Object 'Declare variant
Set sapConn = CreateObject("SAP.Functions") 'Create ActiveX object
sapConn.Connection.System = "QA2"
sapConn.Connection.client = "900"
sapConn.Connection.user = "mbrough"
sapConn.Connection.Password = "st34lh"
sapConn.Connection.Language = "EN"
If sapConn.Connection.Logon(1, False) <> True Then 'Try Logon
 MsgBox "Cannot Log on to SAP"
End If
'Define the table specifics
Dim objRfcFunc As Object
Set objRfcFunc = sapConn.Add("RFC_READ_TABLE")
Dim objQueryTab, objRowCount As Object
Set objQueryTab = objRfcFunc.Exports("QUERY_TABLE")
objQueryTab.Value = "LQUA"
Set objRowCount = objRfcFunc.Exports("ROWCOUNT")
objRowCount.Value = "15000"
Dim objOptTab, objFldTab, objDatTab As Object
Set objOptTab = objRfcFunc.Tables("OPTIONS")
Set objFldTab = objRfcFunc.Tables("FIELDS")
Set objDatTab = objRfcFunc.Tables("DATA")
'Set the condition and refresh the table
objOptTab.FreeTable
objOptTab.Rows.Add
objOptTab(objOptTab.RowCount, "TEXT") = "LGTYP BETWEEN 'K01' AND 'K06'"
'Set fields to obtain and refresh table
objFldTab.FreeTable
'Then set values to call
objFldTab.Rows.Add
objFldTab(objFldTab.RowCount, "FIELDNAME") = "LGNUM"
objFldTab.Rows.Add
objFldTab(objFldTab.RowCount, "FIELDNAME") = "MATNR"
objFldTab.Rows.Add
objFldTab(objFldTab.RowCount, "FIELDNAME") = "WERKS"
objFldTab.Rows.Add
objFldTab(objFldTab.RowCount, "FIELDNAME") = "LGTYP"
objFldTab.Rows.Add
objFldTab(objFldTab.RowCount, "FIELDNAME") = "LGPLA"
objFldTab.Rows.Add
objFldTab(objFldTab.RowCount, "FIELDNAME") = "GESME"
objFldTab.Rows.Add
objFldTab(objFldTab.RowCount, "FIELDNAME") = "VERME"
objFldTab.Rows.Add
objFldTab(objFldTab.RowCount, "FIELDNAME") = "MEINS"
If objRfcFunc.Call = False Then
 MsgBox objRfcFunc.Exception
End If
Dim objDatRec As Object
Dim objFldRec As Object
For Each objDatRec In objDatTab.Rows
 For Each objFldRec In objFldTab.Rows
 Cells(objDatRec.Index, objFldRec.Index) = _
 Mid(objDatRec("WA"), objFldRec("OFFSET") + 1, objFldRec("LENGTH"))
 Next
Next
End Sub
The table which contains the article descriptions is called 'MAKT' and this table also contains the column 'MATNR' which is the article field.
Many thanks,
Mike

Is there no way of connecting the tables within the code.
IT won't give me access to SE11
Thanks,
Mike

RFC calls keep old buffer tables PS and PSINFO

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