dr-autosync: improve state file content (#4342)

[ti-chi-bot]

This is an automated cherry-pick of #4342

Signed-off-by: disksing i@disksing.com

What problem does this PR solve?

close #4341

What is changed and how it works?

• use *time.Time instead of time.Time
• add test
• add some logs

Check List

Tests

• Unit test

Code changes

• Has persistent data change

Related changes

• Need to cherry-pick to the release branch

Release note

Improve DR_STATE file content format

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• lhy1024
• nolouch

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After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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[codecov]

Codecov Report

Merging #4386 (6fc8796) into release-5.3 (78ecff8) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@               Coverage Diff               @@
##           release-5.3    #4386      +/-   ##
===============================================
+ Coverage        74.95%   74.98%   +0.02%     
===============================================
  Files              264      264              
  Lines            27286    27296      +10     
===============================================
+ Hits             20452    20467      +15     
  Misses            5020     5020              
+ Partials          1814     1809       -5     

Flag	Coverage Δ
unittests	74.98% <100.00%> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
server/replication/replication_mode.go	79.60% <100.00%> (+0.84%)	⬆️
server/schedulers/shuffle_hot_region.go	55.55% <0.00%> (-10.11%)	⬇️
server/region_syncer/server.go	83.08% <0.00%> (-5.89%)	⬇️
server/member/member.go	63.10% <0.00%> (-5.35%)	⬇️
server/election/leadership.go	75.25% <0.00%> (-2.07%)	⬇️
server/tso/allocator_manager.go	66.66% <0.00%> (-0.17%)	⬇️
pkg/tempurl/tempurl.go	60.00% <0.00%> (ø)
server/server.go	72.44% <0.00%> (+0.44%)	⬆️
server/tso/tso.go	65.34% <0.00%> (+0.56%)	⬆️
server/schedule/operator/step.go	73.06% <0.00%> (+0.73%)	⬆️
... and 6 more

---

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[nolouch]

/merge

[ti-chi-bot]

@nolouch: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 1565c08

[ti-chi-bot]

@ti-chi-bot: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[nolouch]

/run-unit-tests

[disksing]

/run-unit-tests

[disksing]

/run-unit-tests