Comments on: EMC World 2008: Documentum Foundation Services (DFS) – Best Practices and Real World Examples

By: Prasad

Prasad — Tue, 11 May 2010 14:21:26 +0000

I want to use documentum transaction in .Net. Can i use it? If yes then please provide code for the same.

Thanks in advance
Prasad.

By: Pie

Pie — Fri, 24 Jul 2009 15:18:17 +0000

I posted your question to EDN. Hopefully someone will have an answer.

https://community.emc.com/message/11006#11006

By: Urs

Urs — Fri, 24 Jul 2009 13:42:15 +0000

We are trying to run DFS 6.5 SP2 against Documentum Server 5.3 SP5, which is said to work.

Trying to run DotNetSamples included in DFS SDK for consuming DFS with the .NET Productivity Layer, it turns out that in our case some examples work fine (such as running queries on QueryService and create folder on ObjectServcies), whereas many others fail, including the ones creating files with content. Since the caught exception doesn’t tell me much, I checked what’s sent over the wire and have seen that apparently a specific attribute is the problem:

com.documentum.fc.common.DfException
You have specified an invalid attribute name (is_cache_acs)
DM_QUERY_E_NOT_ATTRIBUTE

Since the example doesn’t set that attribute explicitely on client side (nor it’s contained in the HTTP request to the server), I assume that DFS on server side is using that attribute on DFC but I have no clue why this causes trouble…

By: Pie

Pie — Mon, 02 Mar 2009 14:02:51 +0000

Benny, .NET is not a problem. I haven’t used it with DFS, but examples abound at the EMC Developer Network and on Craig Randall’s blog. Here are some posts to get you started:

http://craigrandall.net/archives/2009/01/consuming-dfs-wsdl-in-visual-studio/

http://craigrandall.net/archives/2008/07/dfs-object-service-consumer-1/

As for streaming large files, your approach to using CIFS is most likely the best. I haven’t tried using large files with DFS as of yet, so there may be a better way.

One thing to consider is that if your web application is located close, network-wise, to your Content Server, then DFC is always a possiblity. It is a little faster and you can start streaming using DFC in a Web Application.

-Pie

By: Benny

Benny — Sun, 01 Mar 2009 22:25:39 +0000

I would like to use .NET client for consuming DFS.
I would be very greatful for an answers.
How can I pass Windows Credentials to DFS?
How can I handle large file 100MB and above for streaming?
Since there isn’t any document URL which are public Can I copied large files from Documentum to CIFS file system and send a URL to the file so the client can connect and stream?