DSXchange

You can use userStatus option to pass on value form the previous stage in JobSequnce.
Or you can define your own surrogate key. You can have the max of the field as an additional column in user defined query, and use it the transformer to frame your logic to add 1 with the help of Stage variable.

May I know how may number of jobs been called parallely by the batch job?
Is it possible for you to serialize it?

Use Execute command activity to clear the file at first. Later call the job using job activity with update action inthe job for 5 times.

This might be not true for all cases.
May I know, how you compare the performance? The load consistency of the server?
But still there may be some case where transformer might have eaten up large resource, but have performed well.

Proceed with the suggestions given by Arnd, And if you manage to import the exported dsx sucessfully into another project, try to do REINDEX for DS_JOBS of the current project. This might also help.

And more over, this variable is not required to be inserted into the any job or sequence, unless it is required to be changed. Is there any specific reason that, the use of variable in the sequence?

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Hope not RMM stages

Or before job subroutine to create a file with header. And append the file in the job with detail. And later cat with the trailer in after job subroutine.

Have you tried @NULL?

Are all of the sources compatiable with the given layout?

If two active stage are connected to gether, the process are clubbed together. If an IPC is used in mid of it, the both process are mutually exclusive. If you need parallalism, you can use Link partitionor. If you have 64links out of it, you input record set will be processed parallely in all the 64...

IF you tend to change the default value of the variable after assigning in the sequence, yes it will affect.

What filter condition you use?

Sam - Check the option available in the edition. And try to turn of the "Show space and tabs" option. If enabled will show you spaces, new line character, tabs... It is an additional feature available in the editior. So there is nothing to do with your job. Veiw the same file in unix, with vi option...

If this error re occurs for every time, check you transformations and for datatype mismatch if any.
"from previous run...".
This is for PX and not for this edition.