Search found 1274 matches

by jwiles
Tue Jan 18, 2011 9:59 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Constrain the processing nodes used by the parallel engine
Replies: 4
Views: 2072

Re: Constrain the processing nodes used by the parallel engi

How to constraining a job or stage to a particular node pool ? The configuration file will constrain a job to a particular node pool. If you desire to have different jobs run on different node pools, you will need to have separate configurations files for them. You could alternately use the node ma...
by jwiles
Tue Jan 18, 2011 9:53 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Data Set Error
Replies: 9
Views: 5178

Abhi700 wrote:I am Writing to dataset.
And i have to use that Dataset.
Are you trying to write and read the same dataset in a single job? Can't do that...

Also, make sure that your filesystems are not full.

Regards,
by jwiles
Mon Jan 17, 2011 10:43 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: "mmap failed: Not enough space"
Replies: 14
Views: 10211

Re: Disabling operator combination also fixed the issue

Does it mean all inline sorts together form one tsort oerator ? No, it just means that one process (per partitiion) is performing all of the work. Each sort is still a separate "entity". Actually, for multiple input streams the sorts may not be combined as I am thinking. I'll need to veri...
by jwiles
Mon Jan 17, 2011 8:19 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Best Practices for coding in Datastage
Replies: 3
Views: 6827

Re: Best Practices for coding in Datastage

Best Practices are rarely as simple as the examples you mention, quite often are dependent upon the situation. 1) Null handling must be done to examine and manipulate nullable columns within a transformer stage. 2) Parameters which are likely to change value from run to run, or over time, should not...
by jwiles
Mon Jan 17, 2011 7:57 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: "mmap failed: Not enough space"
Replies: 14
Views: 10211

Re: Disabling operator combination also fixed the issue

I too was facing this mmap issue with a job where a join stage has 32 links each with an inline sort, The most curious thing is that this job ran fine in our Development and Testing environment but failed in Production. when the operator combination was disabled it ran fine in Production Very curio...
by jwiles
Fri Jan 14, 2011 4:17 pm
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Rejecting Null values during file import
Replies: 3
Views: 6127

Actually I am using the schema file to read the sequential file and hence there is no column defined in the job. It sounds like you have RCP enabled (yes?) within Designer, so a Filter stage would work in your case, as Ray suggested. Filter does not require that the column be defined in the job met...
by jwiles
Fri Jan 14, 2011 10:51 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Generating Surrogate Key In Basic Transformer Parallel Job
Replies: 6
Views: 6758

Re: Generating Surrogate Key In Basic Transformer Parallel J

Hi, When I use a BASIC transoformer in a parallel job, by default it runs in parallel on all the nodes as per the configuration file but it doesn't have partitionnum and numpartitions sytem varibales to generate a surrogate key. It only has @INROWNUM which is not sufficient when the job is running ...
by jwiles
Thu Jan 13, 2011 8:09 pm
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: datastage
Replies: 2
Views: 1151

Re: datastage

DataStage jobs cannot be "opened" in Unix (I have to assume you are talking about opening to view/modify jobs as you would do with Designer--you did not specify in your post). The Designer client software is Windows-only. You can submit existing DataStage jobs from a unix prompt so long as...
by jwiles
Thu Jan 13, 2011 7:47 pm
Forum: General
Topic: Can systems in HA configs be on two different O/S releases?
Replies: 4
Views: 2027

Thanks for pointing that out to me, Andy! I somehow completely missed the O/S point of your post. Maybe my answer will be useful for someone anyway :) Regarding the different O/S versions and Information Server: yes, it's definitely not recommended for the reasons you point out but it can work well ...
by jwiles
Thu Jan 13, 2011 2:20 pm
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: parallel routine and C
Replies: 1
Views: 1331

Re: parallel routine and C

epmenard wrote:Are parallel routines limited to C++ programs or can we also reference C code?
It's been a while since I've written one, but IIRC it needs to be compiled as a C++ routine but can be written in plain C if you wish.
by jwiles
Thu Jan 13, 2011 11:17 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Lookup stage performance Versu Merge stage performance
Replies: 5
Views: 3783

Along the lines of different tasks, if Sort and Partition insertion has not been disabled, the engine likely inserted a sort/partition for each input for the merge if they weren't already in the job design. You wouldn't have the sorts inserted for a lookup stage, and typically Entire partitioning on...
by jwiles
Thu Jan 13, 2011 11:06 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Compile Job Hangs - consuming all memory
Replies: 4
Views: 2233

Glad it worked! I hit the same wall early in my DS career and I'm sure there's many similar stories out there :) I haven't found any whitepapers surrounding the optimization options. There's no real optimization standard across different compilers so it's difficult to say that -02 does this and this...
by jwiles
Wed Jan 12, 2011 3:10 pm
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Handling Duplicate Data
Replies: 2
Views: 1387

Re: Handling Duplicate Data

Use a transformer to count the number of -99.00 columns and add that count as an output column, then sort using the count as the last sort key column (don't partition on it tho). If you sort in ascending order your desired record will be the first within a key group.

Regards,
by jwiles
Wed Jan 12, 2011 1:01 pm
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Surrogate generator not taking initial value from flat file.
Replies: 1
Views: 1523

Re: Surrogate generator not taking initial value from flat f

Hi, I am generating surrogate key and also using flat file option. But the initial value for next run is not coming from the flat file. it is taking some random value. Can you guys please help me in what i should give in the block size, I think that is something i am missing. Appreciate your help. ...
by jwiles
Wed Jan 12, 2011 11:32 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Schema File & Dates
Replies: 2
Views: 2136

Re: Schema File & Dates

Hi The file which one I need to load is:(example) ... 123502|78|42A|2010/05/07|2010/05/04|13|11|RR64/10|2010/05/04|10||||| ... The error message is: Sf_UsuarioMercury,0: Input buffer overrun at field "F_COB_FVSEEUC1", at offset: 64 if I check the lin it is 2010/05/04|10 Using the line you...