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Conencting DS 7.5.3 server from my 7.5.2 Client version

Posted: Thu Apr 05, 2012 10:50 am
by dsedi
Experts,
sorry if this is a noob question
Never tried to connect DS 7.5.3 server from my 7.5.2 Client.
will that work without any issues?

Thanks in advance for the answer

Posted: Thu Apr 05, 2012 11:16 am
by qt_ky
Client and server versions, fix packs, and patch levels should match, whether the client actually connects without warning/error or not.

Posted: Thu Apr 05, 2012 11:58 am
by chulett
Short answer: you can't.

Posted: Thu Apr 05, 2012 12:42 pm
by dsedi
Thanks qt_ky
Thanks chulett

Posted: Thu Apr 05, 2012 7:40 pm
by qt_ky
chulett wrote:Short answer: you can't.
And if you can, you shouldn't. :) Back on various 7.5.1 / 7.5.1A / 7.5.2 combinations, it worked. That doesn't mean you should compile all the jobs across differing client & server versions.

Posted: Fri Apr 06, 2012 5:34 am
by chulett
I know exactly what you mean, and it only looked like it worked. Sometimes also known as 'mostly works'. Had several run-ins with support over the issue... they were very insistent - don't do it. Just say no. :wink:

Posted: Fri Apr 06, 2012 6:03 am
by qt_ky
Yep! I ran into ever-so-slight compile issues with those combinations since some pre-compile steps happen on the client and the rest happen on the server...

Same goes for the IIS Console used for IA and ISD. I found recently that between 8.5 and 8.7, you can login with either version of the IIS Console client. There is no client/server version check or warning given as there is with DataStage clients! Beware... :!:

Posted: Mon Apr 16, 2012 8:32 am
by dsedi
Hi Craig/Eric

could you please advise on the below...

Posted: Mon Apr 16, 2012 1:39 pm
by jwiles
If you are needing to show evidence to management, you should contact your official support provider to obtain an official statement concerning support for mismatched releases of server and client software.

If you need more detailed information, request details from support of changes between the two versions that affect either the client software or both the client and engine.

Regards,

Posted: Mon Apr 16, 2012 7:14 pm
by qt_ky
The issue I recall is a bit sketchy as it was around 2007 I would guess... I did not involve 7.5.3 at all but it's representative of what bad things can happen due to a client/server version mismatch. It was related to 7.5.1 vs. 7.5.1A and strange runtime problems. We spent many hours getting to the bottom of it. We were also using the built-in Version Control tool to do promotions. In the end we found some difference depending on which Designer Client we originally initiated the compile from.

Posted: Mon Apr 16, 2012 8:42 pm
by chulett
I don't recall much in the way of gory details as it was quite some time ago as well but I think it was about using a 7.5.1a client against a 7.5.3 server. Sequences compiled differently, we had odd issues with the XML stages which was the killer for us as we did a ton of XML work at the time. Support basically said that they couldn't help us until we got all of the clients up to 7.5.3 or just stuck with the 7.5.1a release. We ended up going with the latter...