taking long time for importing ds jobs

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Hi,
we are importing some 50 jobs from Datastage designer client.Its taking long time, even after 4 hours its still importing.
We are not sure how many jobs are imported so far.If we cancel the operation, will any of the jobs imported so far will be remained or everything will be cancelled? Is there any chance of server hang up when we cancel that import?is there any way to check logs to know how many jobs are imported so far?

Thanks..