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5 Replies Latest reply: Aug 21, 2012 7:13 AM by Mark Kelly RSS

ODM Cross platform migration (Hp-ux to Linux)

918913 Newbie
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We have ODM development environment in HP-UX 11.31 (Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production). We need to migrate this to Oracle Enterprise Linux 6 (2.6.32) (Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit ).

What approach should we take to migrate this? We just tried using datapump (full) to export and import. But it seems that isn't working because many objects of ODMSYS are failing to import.


Many Thanks,
Girish
  • 1. Re: ODM Cross platform migration (Hp-ux to Linux)
    Mark Kelly Oracle ACE
    Currently Being Moderated
    Hi Girish,
    There is a bug filed against Data Pump and XMLDB that is blocking the use of Data Pump on the ODMRSYS repository.
    For reference the bug number is 13346574.

    However, you can accomplish what you need to do using RMAN.

    Here are some reference links:
    http://docs.oracle.com/cd/E11882_01/backup.112/e10642/rcmbckba.htm#BRADV8131

    There is also a process using RMAN that lets you move from one platform to another:

    http://docs.oracle.com/cd/E11882_01/backup.112/e10642/rcmxplat.htm#BRADV05432

    For more assistance in using RMAN you can post to either the general db questions forum or the installation forum.

    installation
    Installation

    general db
    General Questions

    Good luck. Mark
  • 2. Re: ODM Cross platform migration (Hp-ux to Linux)
    918913 Newbie
    Currently Being Moderated
    Hi Mark,

    Many thanks for your reply,

    In the meantime I was trying little bit different approach

    1) Created database same as source, using source scripts
    2) Created ODM repository (using SQLDeveloper -Data Miner)
    3) Created users
    4) Exported models from source using
    EXECUTE dbms_data_mining.export_model('all_odm_models.dmp', 'dump');
    5) Imported models into target
    EXECUTE dbms_data_mining.import_model('all_odm_models01.dmp', 'dump');
    6) Imported all other user object in user schemas
    7) compared number of objects and they all match
    8) Compared the models using SELECT * FROM all_mining_models
    9) Connected using SQL Developer to new database but can't see the projects and workflows

    Is this method correct ? should I do something else to get projects, workflows ?
    or RMAN is the only option?

    Thanks for your help

    Regards,
    Girish
  • 3. Re: ODM Cross platform migration (Hp-ux to Linux)
    918913 Newbie
    Currently Being Moderated
    Update:
    Exported workflows to xml files using SQlDeveloper and imported into target database using SQL Developer and it works !
    Just wanted to know if it is right method?

    Regards,
    Girish

    Edited by: 915910 on 21-Aug-2012 04:11

    Edited by: 915910 on 21-Aug-2012 04:12
  • 4. Re: ODM Cross platform migration (Hp-ux to Linux)
    Brendan Oracle ACE Director
    Currently Being Moderated
    Yes. The workflows/projects reside on the client that built them using ODM in SQL Developer.
    Only the models and other objects that are created when the workflow is run, will be stored in the database.

    Regards
    Brendan
  • 5. Re: ODM Cross platform migration (Hp-ux to Linux)
    Mark Kelly Oracle ACE
    Currently Being Moderated
    Hi Girish,
    Well, you took the manual approach that is for sure.
    The approach you took will only partially works so I will explain what is missing.
    First just a correction on Brendan's statement regarding the workflows.
    The projects/workflows are actually all stored on the database in the ODMRSYS repository.

    Recap of Process and Issues
    Since you created a new ODMRSYS repository, rather than use RMAN to copy the db, then the repository is empty.
    By copying over all the objects in the user accounts, you were able to retain the underlying tables,models that were originally generated by the workflow.
    You solved your lack of projects/workflows by manually exporting them, one at a time, from the old db' ODMRSYS repository to your file system, and then importing them into the new db's ODMRSYS repository.
    However, when you import a workflow you have an option to retain the original model names and any table or view names generated by the Create Table node.
    If you do not choose this option the model names and table/views are renamed if there are conflicts with preexisting objects in the user's account.
    So I have to assume that you choose the option to preserve the names.
    However, when a workflow is imported, all of the hidden table/view references that it contains to such objects as model test result tables, statistical output tables etc., are blanked out. So the workflow is in a incomplete but ready state. All the metadata is there, but it will need to be run to regenerate all the underlying objects again. So the fact that you copied these objects over will not really do you any good. In fact, you now have some garbage tables/views that will never be dropped unless you drop the entire repository, or run special scripts to find out what ODMr generated objects are not referenced in workflows.
    I can provide a script to find the garbage tables/views and remove them.
    So, in summary, the process you followed does not preserve the results, but does preserve the workflow metadata.
    The effort of copying the objects over from the old db was not necessary. Except for the source tables you need to perform mining on.
    Hope this helps explain things.
    Thanks, Mark

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