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Data Federator Driver Error when running Query sourced from Mutli Source Business Layer within IDT

Mar 02, 2017 at 02:03 PM

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Hi,

I am trying to create a Universe (Business Layer) from a multi-source (BW and Netweaver, both relational connection) data foundation within IDT.

When a query created directly within IDT, I do get the following error during run query "Data Federator Driver Server Internal error" (full error listed below-1), but same script works well from "Data Federation Administration Tool", and when I publish such Business Layer and try to create a webi report I do get error of "Database error" [data federator Driver] [Server] Internal error .. IES 10901 (full error listed below-2).

Does anyone knows why and how to remove such error ?

Thanks

Ming-Wei

---Error when running query within IDT--

Cause of Error

[Data Federator Driver] [Server] Internal error: while trying to invoke the method java.lang.String.equals(java.lang.Object) of a null object returned from com.sap.conn.rfc.engine.RfcIoOpenCntl.getCommunicationCodepage()

Cause of Error

Internal error: while trying to invoke the method java.lang.String.equals(java.lang.Object) of a null object returned from com.sap.conn.rfc.engine.RfcIoOpenCntl.getCommunicationCodepage()

Cause of Error

while trying to invoke the method java.lang.String.equals(java.lang.Object) of a null object returned from com.sap.conn.rfc.engine.RfcIoOpenCntl.getCommunicationCodepage()

---Error when running WEBI report sourced from such Universe ---

Database error: [Data Federator Driver] [Server] Internal error: while trying to invoke the method java.lang.String.equals(java.lang.Object) of a null object returned from com.sap.conn.rfc.engine.RfcloOpenCntl.getCommunicationCodepage(). (IES 10901) (WIS 10901)

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is there any filter condition? if yes then try to remove one by one and check.

what is your BO version? what is your backend databae?

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2 Answers

Ming-Wei Lin Mar 02, 2017 at 02:56 PM
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Hi Kumar,

BO version 4.1

SAP BW 7.4

SAP Netweaver 7.3

One by one is working fine, when creating Data Foundation and query from each of these single connection, it works, but error out when put creating a query from multi source data foundation.

since error is something to do with "communication code page", I noticed it may have something to do with the language selection, e.g. in the connection parameter setting, there is a language setting and a tick of "save language", I am still paly around, I do see same error directly from data foundation if I tick the "save language" option on the connection setting page.

error still exist and still play around try to find a way to resolve it.

Thanks

Ming-Wei

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Ming-Wei Lin Mar 02, 2017 at 03:07 PM
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Hi,

The query is now working fine both from IDT and Webi now. :-)

Both of the two connections' language was defaulted to "English (South Africa)" and no save language Tick,

I just paly around change the language to "English (US)" and tick the "save language".

guess when there are two connections involved in the design it may need to specify the language for each connection.

Thanks

Ming-Wei

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