server: fix the data race problem (#3772)

[ti-chi-bot]

This is an automated cherry-pick of #3772

Signed-off-by: Ryan Leung rleungx@gmail.com

What problem does this PR solve?

Closes #3771.

What is changed and how it works?

This PR moves the process of loading TTL configs before starting raftCluster.

Check List

Tests

• Unit test

Related changes

• Need to cherry-pick to the release branch

Release note

Fix the data race when the scheduler is started before loading TTL configurations

[codecov]

Codecov Report

Merging #3774 (2f5a3de) into release-5.0 (3dd3c7b) will decrease coverage by 0.04%.
The diff coverage is 83.09%.

@@               Coverage Diff               @@
##           release-5.0    #3774      +/-   ##
===============================================
- Coverage        74.60%   74.55%   -0.05%     
===============================================
  Files              245      245              
  Lines            24122    24194      +72     
===============================================
+ Hits             17997    18039      +42     
- Misses            4510     4533      +23     
- Partials          1615     1622       +7     

Flag	Coverage Δ
unittests	74.55% <83.09%> (-0.05%)	⬇️

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

Impacted Files	Coverage Δ
server/schedule/operator/builder.go	87.98% <ø> (ø)
server/api/router.go	97.05% <33.33%> (-2.34%)	⬇️
server/schedule/checker/rule_checker.go	78.37% <60.00%> (-1.63%)	⬇️
client/base_client.go	82.47% <75.00%> (-0.77%)	⬇️
server/server.go	72.48% <78.57%> (-0.43%)	⬇️
server/tso/tso.go	71.16% <86.11%> (-0.62%)	⬇️
server/core/store.go	82.97% <87.50%> (+1.51%)	⬆️
server/schedule/region_scatterer.go	88.47% <93.33%> (+1.43%)	⬆️
pkg/cache/ttl.go	97.77% <100.00%> (+0.15%)	⬆️
pkg/typeutil/time.go	100.00% <100.00%> (ø)
... and 26 more

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[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• JmPotato
• nolouch

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[JmPotato]

/merge

[ti-chi-bot]

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

/run-all-tests

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[ti-chi-bot]

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

Commit hash: 486c766