support clear logs of data import

[handsonbao]

Is your feature request related to a problem? Please describe.
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When i load data, i can just see some errors occur. But i don't know what happens.
Last time i found some errors occurred, i found nothing in the studio. Finally i found that the storaged was down.

Describe the solution you'd like
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We can consider to put some clear logs in the studio, especially when we load data.

Describe alternatives you've considered
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in the terminal

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