fix(data-transfer): avoid task failure by processing exception messages

[LuckyPickleZZ]

What type of PR is this?

type-bug

What this PR does / why we need it:

Sometimes ob-loader-dumper's error messages are confusing.

1. If we catch an exception 'No subfiles are generated from path', it's because all the data files are empty. In this case , the task state should not be failed.
2. If we catch an exception 'table or view does not exist', This may be because the user lacks query permissions for the DBA view. We could give users a prompt in the log.

Which issue(s) this PR fixes:

Fixes #2774

[yizhouxw]

lgtm

[yhilmare]

lgtm