Issue of multiple Disqualification tasks that use the same snapshot

Details of the environment

======================

Disqualification Version: 12.1.3.0.0


A snapshot has been created in which the WHERE clause is outsourced and this snapshot table is used in a data quality process.

Since there are different values passed to the WHERE clause, different jobs who have their own data quality process, but these process reads from the same snapshot table.

Disqualification does not allow execution of different tasks that uses the same shot to run at the same time.

Job1 is in operation, job2 throws an exception that the snapshot is locked.

Any reason why Disqualification has this restriction? Processes are just doing a read on the snapshot table operation, so I was wondering why it was necessary to lock the object.

We have more than 60 jobs that use the same snapshot and it would inhibit scalability if we are forced to run 60 jobs in sequence and not allow them to run in parallel.

Can you advice how to fix this problem?

The short answer is that each task must be executed with his own label of execution. Otherwise, each work is actually being run in the same context, and you will have problems of blocking.

Please read on the labels of the execution and run profiles in the online help.

Note that when running with a label of execution, complete results are not written; you need to decide exactly what to write work featuring the views of results you need. All data staged (including the snapshot itself) will be written with a label execution context and you can view the results in the Console of the server. Director will only show the results of the last run.

Tags: Fusion Middleware

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