Search found 53125 matches

by ray.wurlod
Mon Apr 13, 2009 4:49 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Curious case of Hash Partitioning
Replies: 2
Views: 1049

It was not clear from your description whether the hash partitioning was based on precisely the same key column(s) in all jobs, particularly in Job 7 and Job 8. If this is in fact the case then you ought not to get incorrect results. On that basis, I suspect that somewhere the partitioning keys are ...
by ray.wurlod
Mon Apr 13, 2009 4:46 am
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: Maximum Oracle connections in a parallel job
Replies: 2
Views: 1623

Moderator: please move to parallel forum
by ray.wurlod
Mon Apr 13, 2009 4:44 am
Forum: General
Topic: Batch jobs
Replies: 8
Views: 2488

NEVER kill DataStage processes.

Which part of that was unclear?
by ray.wurlod
Mon Apr 13, 2009 4:42 am
Forum: General
Topic: Error with Teradata stage - "TPump returned: 12"
Replies: 0
Views: 1069

Get someone who does have access to the server to forward a copy of the log file to you, or get (read-only) access to the log file on the server.
by ray.wurlod
Sun Apr 12, 2009 7:25 pm
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: External Hard Disk
Replies: 6
Views: 2268

Aaarrgh!! The extra expense!!!
:lol:
by ray.wurlod
Sat Apr 11, 2009 9:05 pm
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: How to read jbase database on aix machine
Replies: 1
Views: 1409

There is almost certainly an ODBC driver out there. jBase is one of the family of databases, like UniVerse and Unidata, the support "nested relational" designs - multi-valued fields and so on.
by ray.wurlod
Sat Apr 11, 2009 9:02 pm
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: Delays between Job Sequences / Calling Next Job
Replies: 20
Views: 10091

bmouton wrote:They are still HASH files
No they're not. They are HASHED files.

A hash file is a tool used for shaping a block of hash. Whether that means ground meat or something else to you is immaterial.
by ray.wurlod
Sat Apr 11, 2009 4:08 pm
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Aggregator performance
Replies: 6
Views: 2820

Without knowing more about your servers, particularly their performance data (CPU speed and the like) it's really impossible to say. But nearly 40,000 rows per second sustained over 90 minutes would keep most people here happy.
by ray.wurlod
Sat Apr 11, 2009 4:04 pm
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: How to remove comma from numeric field
Replies: 6
Views: 7429

Code: Select all

Iconv(InLink.TheNumber, "MD2")
is an alternative; it has the advantage that it will remove currency symbols as well.
by ray.wurlod
Sat Apr 11, 2009 4:02 pm
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: Delays between Job Sequences / Calling Next Job
Replies: 20
Views: 10091

In version 8.1 you get the choice of where the logs are. It's my understanding that the default is to put them in the unified metadata repository (that is, the XMETA database if you didn't select a different name).
by ray.wurlod
Fri Apr 10, 2009 12:36 pm
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Datastage Project Migration Approach
Replies: 5
Views: 3247

Make very sure too that the four environment variables for compiler and linker are correctly set for the new platform, and that 32-bit libraries are found ahead of 64-bit libraries in every instance.
by ray.wurlod
Fri Apr 10, 2009 12:34 pm
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Aggregator performance
Replies: 6
Views: 2820

There's nothing you can tune with Hash aggregation method. Sort will give better performance (measured as elapsed time) but does require sorted input. Use an explicit Sort stage and use as much memory for sorting as you can afford. Don't forget to partition and sort on the grouping keys - do this as...
by ray.wurlod
Fri Apr 10, 2009 12:33 pm
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Aggregator performance
Replies: 6
Views: 2820

There's nothing you can tune with Hash aggregation method. Sort will give better performance (measured as elapsed time) but does require sorted input. Use an explicit Sort stage and use as much memory for sorting as you can afford. Don't forget to partition and sort on the grouping keys - do this as...
by ray.wurlod
Fri Apr 10, 2009 12:30 pm
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Sequencer Expression bug
Replies: 2
Views: 1053

It's not a bug. The problem is between the keyboard and the chair.

And, by the way, a Sequencer does not have any expressions. It only has one property, and that only takes two possible values - "Any" or "All".

Please be careful with terminology.
by ray.wurlod
Fri Apr 10, 2009 12:27 pm
Forum: Information Analyzer (formerly ProfileStage)
Topic: InformationAnalyzer Log
Replies: 7
Views: 4048

data type global search replace

Well spotted! We could have spent ages without guessing about the mass change!

And a valuable lesson about the dangers of unintended changes during global search and replace.