chaosi-zju

CC @RainbowMango

CC @RainbowMango #4564 and #4570 are all PRs about code modification, and ready to review, thanks.

> Sorry, let this sit. @chaosi-zju can you help to take a look? @zhzhuang-zju is more familiar with `karmadactl`, I have asked him for help

this PR's reviewing should wait util #4510 and #4553 merged and do a rebase. /hold

/hold cancel

I have tested and confirmed as a problem. besides, you gave a good scenario for #3318

> will this modification require compatibility I don't think it matters. What do you think? > Will it force users to upgrade the Estimator component I think it's only about...

CC @RainbowMango may be ready to merge, any further comments?

@whitewindmills sorry for delayed a while, I have updated the code, do you have time checking once more?

CC @RainbowMango