NLS Uninstall and NLS Default features

gsherry1 · Post by **gsherry1** » Thu Oct 19, 2006 3:04 pm

Hello Forum,

A few questions about NLS.

1) Can NLS be uninstalled after it has been installed?

2) Exactly what features of NLS have people observed not to work on Windows 7.5X2 environments? The vendors installation recommendations suggest there must be something important missing from the NLS functionality.

3) What NLS benefits should I expect to receive simply by installing the package, but not performing any special configuration on individual NLS panels on jobs. I ask this question because I have a job that works fine on a 7.5X2 environment with an NLS installation (Server Default Map: MS1252, Parallel Default Map: ISO-8859-1), but nothing has been configured for NLS on the job. When this job was migrated to a non NLS 7.5X2 environment, the job produces the following warning:

1.APT_CombinedOperatorController,0: Invalid character conversion found converting to ISO-8859-1, substituting.

Your input is appreciated.

Thanks,

Greg

ray.wurlod · Post by **ray.wurlod** » Thu Oct 19, 2006 8:04 pm

1. Only via uninstall and reinstall. But it can be disabled by setting NLSMODE to 0 in uvconfig and regenerating the image.

2. What recommendations? I haven't had any problems, but again I haven't tried to stress test it.

3. In Canada you won't get much benefit, maybe the proper handling of accented characters when changing case and the correct international currency symbol. The warning is occurring because a reference to the character map persists (as a job property or stage/link property) somewhere in your job and the non-NLS installation is unable to resolve it. Provide that your data really are in US-English, you won't get any data issues.

A final note; DataStage storage requirements in the repository increase slightly when NLS is enabled, because Unicode rather than ASCII encoding is used for internal storage of character data.

chulett · Post by **chulett** » Thu Oct 19, 2006 9:40 pm

In case it's not clear, Ray's #1 response means it is only possible to uninstall NLS by an uninstall and reinstall of DataStage - and on the reinstall, you choose to not install NLS.

gsherry1 · Post by **gsherry1** » Fri Oct 20, 2006 8:37 am

Thanks for the feedback.

1. I take it by setting up NLSMODE to 0, I will be simulating data transformation 100% like a non NLS installation.

2. The release notes for 7.5X2 (winee.pdf) explicitly state:

Do not check the NLS install box. NLS is not supported with the 7.5x2 release of DataStage Enterprise Edition on Windows

Although I'm getting the increasing suspicion that it is simply that the vendor simply hasn't tested it sufficiently. They had the same stance on the multi-client manager with 7.5X2. They said it was not supported, but it seems to work fine.

Greg