doris [opt](filecache) support config hot reload of file cache microbench in running state

Dec 10 '25 16:12 HaolinGuan7211

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Please clearly describe your PR:

What problem was fixed (it's best to include specific error reporting information). How it was fixed.
Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
What features were added. Why was this function added?
Which code was refactored and why was this part of the code refactored?
Which functions were optimized and what is the difference before and after the optimization?

Dec 10 '25 16:12 Thearas

run buildall

Dec 18 '25 12:12 freemandealer

run compile

Dec 19 '25 01:12 freemandealer

run beut

Dec 19 '25 01:12 freemandealer

conflict is fixed in the new PR: https://github.com/apache/doris/pull/59186

Dec 19 '25 07:12 freemandealer

PR approved by at least one committer and no changes requested.

Dec 19 '25 08:12 github-actions[bot]

PR approved by anyone and no changes requested.

Dec 19 '25 08:12 github-actions[bot]