[close #663] Avoid overflow

[shiyuhang0]

Signed-off-by: shiyuhang 1136742008@qq.com

What problem does this PR solve?

Avoid overflow

Issue Number: close #issue_number

Problem Description: TBD

What is changed and how does it work?

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has methods of interface change
• Has persistent data change
• No code

Check List for Tests

This PR has been tested by at least one of the following methods:

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

Side effects

• Possible performance regression, WHY: TBD
• Increased code complexity, WHY: TBD
• Breaking backward compatibility, WHY: TBD
• NO side effects

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation
• Need to be included in the release note
• NO related changes

[codecov]

Codecov Report

Base: 35.19% // Head: 35.03% // Decreases project coverage by -0.16% ⚠️

Coverage data is based on head (c23d725) compared to base (8936a91).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #664      +/-   ##
============================================
- Coverage     35.19%   35.03%   -0.17%     
+ Complexity     1451     1446       -5     
============================================
  Files           278      278              
  Lines         17380    17382       +2     
  Branches       1975     1975              
============================================
- Hits           6117     6089      -28     
- Misses        10647    10686      +39     
+ Partials        616      607       -9     

Impacted Files	Coverage Δ
...ain/java/org/tikv/common/region/RegionManager.java	80.00% <100.00%> (+0.26%)	⬆️
...ty/handler/codec/http2/Http2ConnectionHandler.java	51.10% <0.00%> (-3.43%)	⬇️
src/main/java/io/grpc/internal/ClientCallImpl.java	56.34% <0.00%> (-2.93%)	⬇️
src/main/java/io/grpc/netty/NettyClientStream.java	74.07% <0.00%> (-0.75%)	⬇️
...rc/main/java/io/grpc/netty/NettyClientHandler.java	57.11% <0.00%> (-0.65%)	⬇️
...va/org/tikv/common/region/StoreHealthyChecker.java	69.62% <0.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.

[ti-srebot]

@zhangyangyu, Thanks for your review. The bot only counts LGTMs from Reviewers and higher roles, but you're still welcome to leave your comments. You are not a reviewer or committer or co-leader or leader.

[github-actions]

This PR is stale because it has been open 30 days with no activity. Remove the status/stale label or comment or this PR will be closed in 7 days.

[github-actions]

This PR was closed because it has been stalled for 7 days with no activity.

[sunxiaoguang]

/merge

[ti-srebot]

/run-all-tests

[sunxiaoguang]

/merge

[ti-srebot]

Your auto merge job has been accepted, waiting for:

• 678
• 681
• 678

[ti-srebot]

cherry pick to release-3.3 in PR #689