DocApp in Docbase Vs Local File Store

Posted by Sumeet on Sep 21, 2007 in Documentum

DocApps exist only within Docbases. A DocApp archive allows you to move a DocApp from one Docbase to another.

You cannot save a complete, functional DocApp to the file system. The Open, Save, and Save As choices on the File menu enable you to save and restore changes that you are not yet ready to check in.

When you use Open to restore saved changes from a file, the system synchronizes the saved changes with the DocApp in the Docbase. This can force you to choose between changes that exist in the file and changes that someone made to the Docbase after you created the file.”
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’set storage_type’ VS ’setfile’

Posted by Sumeet on Sep 14, 2007 in Documentum

When you use “set a_storage_type” and “setfile” commands in wrong command order the following will happen:

Try the following two examples. The first works correct, the second not:


Correct behavior:
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Why Renditions don’t get FT Indexed?

Posted by Sumeet on Sep 10, 2007 in Documentum

Lets say you wish to full index the renditions of all TIFF files. In order to do so, do the following:

1. Set the TIFF Format can be indexed to false

2. Set the dm_format object ( for RTF format) attribute called format_class to ft_preferred or ft_always

iapi> retrieve,c,dm_format where name = ‘rtf’
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Webtop Performance Test w/ Tomcat

Posted by Sumeet on Sep 5, 2007 in Documentum

Login several users with one second between each login. After the 25th user, the users begin to experience poor performance, to the point where some users are receiving “Page cannot be displayed” errors and eventually the System catches up.

If you are experiencing similar behavior during your performance testing with Webtop on Tomcat, one of the reason might be with maxProcessors parameter. This needs to be set to a higher value depending on the number of users you are using.
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keyword ‘describe’

Posted by Sumeet on Sep 1, 2007 in Documentum

The Describe DQL works in both Samson and IDQL32.exe. The format of this DQL is: describe . For example, describe dm_document The output is identical to the describe API.

However, this DQL statement fails if you run it using Documentum Administrator, DTC, or Workspace. The error message received is:

“A Parser (syntax error) has occurred in the vicinity of: describe”.
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DQL/API Editor using Webtop

Posted by Sumeet on Aug 24, 2007 in Documentum

You can test your DQL statements and API calls using the DQL Editor and API Tester of Webtop.

NOTE: Since the Webtop target audience is not Developers, this feature is not documented or recommended for customers to use. Damage to Business Processes and Docbase content can result from improper use of DQL queries and the API set.
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DCTM 5.3 Fulltext Indexing Issues

Posted by Sumeet on Aug 24, 2007 in Documentum

There’s a new Fulltext hotfix bundle available that includes all of the features and fixes from the first hotfix (in Nov.) and adds the following:

1. Increased query timeout settings

2. Increased wildcard term count threshold for queries

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Turn Off ACS!

Posted by Sumeet on Aug 15, 2007 in Documentum

The main purpose of Accelerated Content Services is for distributed Docbases and acts as a distributed file system level cache for content objects.. It will also work with single Docbase. It is not a best practice to disable ACS on the application server arbitrarily, but it should not be an issue if you are not using it. For details on ACS and related BOCS, please see the Distributed Configuration Guide and the Branch Office Caching Services documentation for further details.
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Recover Deleted Doc

Posted by Sumeet on Aug 1, 2007 in Documentum

Whenever a document is deleted, only the document’s metadata is deleted. The content itself (i.e. the object pointed to by the dmr_content object) remains in the content storage area until the IAPI script generated by the dmclean utility is run (see the System Administrator’s Guide for more information on the dmclean utility). Assuming that the dmclean utility has not been run, it is still possible to recover the object’s content file.

Note: The document’s attributes cannot be recovered without going back to a database backup. Below is an outline of a strategy which can be used to do this recovery.
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Cleaning Repository

Posted by Sumeet on Jul 26, 2007 in Documentum

Cleaning up a repository regularly helps ensure that there is little or no wasted space in your installation.

Cleaning up a repository involves removing:

• Orphaned content files
When users delete a document, or any object that has a content file associated with it, the system deletes the object and marks the content as an orphan. The system does not delete the actual content file. This must be done using the dmclean utility.

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