Question

Version Control / Source Control / Check in and Check out issues with Cognos 8.3

Asked by: campbe07

Howdy,

Currently our project is implementing Cognos 8.3 reporting environment on top of an Oracle DB.  As reports are being further developed, configuration management and version control that has come to mind.  Upon researching, there are plenty of third party software solutions for purchase concerning version control, however at my current project we are using IBM rational suite (clearcase, clearquest) for check in / checkout of code.  We would like to ultilize Rational for Cognos as well, but we are having trouble locating some of the files within the cognos environment.  We can find package files, and cpfs, but cannot find report xml.  One of the most significant pieces we would like have version control for are the reports.  In Report Studio, when examining a report, you can view the report schema and xml, but you cannot copy or paste, or access the file, or anything.  Has anyone been able to find the xml files for individual reports on Cognos?  Has anyone integrated Cognos into a IBM Rational Suite?  Has anyone gone through the best practices for version control within Cognos.  I hope someone can help.  Thanks, J.

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Asked On
2008-07-31 at 06:48:11ID23610829
Tags

Cognos, IBM

,

Cognos

,

8.3

,

linked to an Oracle Server (10g)

,

Cognos PowerPlay

Topics

SQL Reporting

,

Version Control

Participating Experts
4
Points
0
Comments
7

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Answers

 

by: adamyPosted on 2008-08-01 at 07:22:49ID: 22138504

You need to use File -> (Local) Save as ... to save the xml. The report specs are saved in the content store database. If you do not local save it, you will not find the report xml files.

 

by: RWrigleyPosted on 2008-08-01 at 13:41:58ID: 22141789

There is an audit extension system that Cognos provides that provides some of what you're looking for, but not integrated (or to my knowledge, integratable) into any of the Rational stuff.  This package effectivley makes "copies" of the report specification into a special auditing database, and allows you to validate that the spec has or hasn't changed since its last run.  The only other tool you have is the package export/import which could be used with a file-based check-in/check-out system, but that'd be tricky.  

Cognos is extremely extensible; I can think of a myriad of ways of set up something, but it all requires a certain amount of SDK work (which is effectively what the Audit Extension package is, and effectively what the third-party vendors have done).  

Currently, the only "source control" that Cognos directly supports is at the FM level.

 

by: campbe07Posted on 2008-08-04 at 09:39:20ID: 22153875

I see what you are saying RWrigley, but this cannot be the way that Configuration Management can only be set up for Cognos.  Currently how Cognos has it set up, it throws everything into a zip file from the DEV environment and then it imports that zip file (which has nothing but encrypted xml) into a TEST environment.  So if I wanted to make a change with a report I would have to recreate the zip file (content store and all)?  I lose all sense of granularity within my Configuration Management, definitely at the report level.  I know that there is one third party app that manages this kind of thing, and I see how c8AuditExtension extracts the information (thanks by the way, that was helpful).  But how do I actually check in Cognos's report source xml specs so that I don't have a versioning issue (because audit only produces a copy, I cant lock it up)?  Is there a query or anything that I can use to access that information?

Thanks for the help so far.  This has been a more involved question than I thought.

 

by: RWrigleyPosted on 2008-08-04 at 18:15:58ID: 22157406

Well, keep in mind that a report isn't like programming code.  It isn't common to have multiple people working on the same report at the same time, so typically each report developer will work on their reports in their own area of the development environment, and once the report(s) are finsihed, they'll be moved to a staging areas on the development server.  This staging area will then get exported (just the folders), and imported into the QA and/or production environment.  Typically, no development work is ever done on these environments (and often the studios will be inaccessible).  

I agree, the lack of version control is a bit of a hole in the product, but given that this has been the case for as long as Cognos 8 (and ReportNet) have existed, I have to imagine that there just hasn't been that much interest in it.

 

by: campbe07Posted on 2008-09-11 at 10:00:02ID: 22452001

Finally found a solution for this one.  Cognos has sort of a hidden features within their system that utilizes LFA.DLL.  By registering LFA.DLL on a report writers workstation, you can then implement additional options within Report Studio to save and open reports locally on the report writers desktop.  By being able to save these reports locally, you can then check the local files into configuration management.

 

by: lhankinsPosted on 2008-09-19 at 12:23:50ID: 22524522

There's a third party tool called MotioCI that does automated version control and regression testing for Cognos BI content.   Here's the link :

    http://www.inmotio.com/products/ci.do

 

by: rachmiePosted on 2009-04-29 at 19:17:44ID: 24266426

As you have all suggested, version control in a web based environment is difficult because the content (report definitions, etc.) are not stored on a file system, but rather within a database (the Content Store).  Though the Content Store is open in the sense that you can query the tables, etc., it is not written to be reported from, and will leave you unsupported if you touch it without going through Cognos sactioned techniques (SDK, API, Studios, etc.).

With that being said, you can get information out one object at a time, or multiple objects at a time.  Our MetaManager solution does this in a very scaleable and automated way (via backup / restore / deploy, using our tree view of the content store, and by providing an easy way to run SearchPath queries against the content store).  You can see more at http://www.bspsoftware.com/Products/ImplementationBasedSoftware/MetaManagerPowerToolsforIBMCognos/tabid/64/Default.aspx.  

Unfortunately, the pull approach will not help if content in your enviroment changes rapidly (i.e. a developer saves a report several times within a few minutes as he / she makes changes).

Through many years implementing and developing business intelligence solutions, my company (IBM Cognos implementation, reseller and software development / solution provider) has clearly seen a strong need for continuously preserving previously authored content after changes are made in the event that the previous version(s) need to be recovered.  Integrated Version Control was built for this purpose, as well as to address compliance / SOX issues and environments that require validation and lock down due to governance.

Have a look at http://www.bspsoftware.com/Products/ImplementationBasedSoftware/IntegratedVersionControl/tabid/65/Default.aspx.  It's the only completely integrated solution for version control, compliance, etc. for IBM Cognos.

Best of luck!

20120131-EE-VQP-002

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