Sche redirect9 1

[lhy1024]

What problem does this PR solve?

Issue Number: Close #xxx

What is changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Code changes

• Has the configuration change
• Has HTTP API interfaces changed (Don't forget to add the declarative for the new API)
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility

Related changes

• PR to update pingcap/docs/pingcap/docs-cn:
• PR to update pingcap/tiup:
• Need to cherry-pick to the release branch

Release note

None.

[codecov-commenter]

Codecov Report

Merging #23 (87b4463) into master (9f19361) will increase coverage by 0.00%.
The diff coverage is 61.45%.

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@@           Coverage Diff            @@
##           master      #23    +/-   ##
========================================
  Coverage   74.43%   74.43%            
========================================
  Files         446      446            
  Lines       48198    48405   +207     
========================================
+ Hits        35875    36032   +157     
- Misses       9167     9192    +25     
- Partials     3156     3181    +25     

Flag	Coverage Δ
unittests	74.43% <61.45%> (+<0.01%)	⬆️

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