[ISSUE #822] self health check by leader instance

[shichaoyuan]

Please provide issue(s) of this PR:
Fixes #822

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• Performance and Scalability
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• HealthCheck
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Please check any characteristics that apply to this pull request.

• Does not have any user-facing changes. This may include API changes, behavior changes, performance improvements, etc.

[polaris-test-bot]

2022-11-30 23:00:34: =========TEST START==========
2022-11-30 23:01:00: Pre-Merge check success! Now we will perform a full automated test which is expected to take 2 hours, thank you for your patience.
2022-11-30 23:12:37: [STANDALONE VERSION]PR autotest FAILED! We executed 14 test cases and 13 were passed. You can see test report in https://polaris-opentest-1306863770.cos.ap-guangzhou.myqcloud.com/pr1140484808/sta/qta-report.html
2022-11-30 23:12:41: [CLUSTER VERSION] PR autotest FAILED! We executed 14 test cases and 13 were passed. You can see test report in https://polaris-opentest-1306863770.cos.ap-guangzhou.myqcloud.com/pr1140484808/clu/qta-report.html
2022-11-30 23:12:44: [KUBENETES VERSION]PR autotest FAILED! We executed 14 test cases and 13 were passed. You can see test report in https://polaris-opentest-1306863770.cos.ap-guangzhou.myqcloud.com/pr1140484808/k8s/qta-report.html
2022-11-30 23:17:08: =========TEST START==========
2022-11-30 23:17:33: Pre-Merge check success! Now we will perform a full automated test which is expected to take 2 hours, thank you for your patience.
2022-11-30 23:29:34: [STANDALONE VERSION]PR autotest FAILED! We executed 14 test cases and 13 were passed. You can see test report in https://polaris-opentest-1306863770.cos.ap-guangzhou.myqcloud.com/pr1140484808/sta/qta-report.html
2022-11-30 23:29:38: [CLUSTER VERSION] PR autotest FAILED! We executed 14 test cases and 13 were passed. You can see test report in https://polaris-opentest-1306863770.cos.ap-guangzhou.myqcloud.com/pr1140484808/clu/qta-report.html
2022-11-30 23:29:42: [KUBENETES VERSION]PR autotest FAILED! We executed 14 test cases and 13 were passed. You can see test report in https://polaris-opentest-1306863770.cos.ap-guangzhou.myqcloud.com/pr1140484808/k8s/qta-report.html
2022-12-02 23:35:12: =========TEST START==========
2022-12-02 23:35:49: Pre-Merge check success! Now we will perform a full automated test which is expected to take 2 hours, thank you for your patience.
2022-12-02 23:46:55: [STANDALONE VERSION]PR autotest PASSED! We executed 14 test cases and 14 were passed. You can see test report in https://polaris-opentest-1306863770.cos.ap-guangzhou.myqcloud.com/pr1140484808/sta/qta-report.html
2022-12-02 23:46:59: [CLUSTER VERSION] PR autotest PASSED! We executed 14 test cases and 14 were passed. You can see test report in https://polaris-opentest-1306863770.cos.ap-guangzhou.myqcloud.com/pr1140484808/clu/qta-report.html
2022-12-02 23:47:02: [KUBENETES VERSION]PR autotest FAILED! We executed 14 test cases and 13 were passed. You can see test report in https://polaris-opentest-1306863770.cos.ap-guangzhou.myqcloud.com/pr1140484808/k8s/qta-report.html
2022-12-04 23:09:42: =========TEST START==========
2022-12-04 23:10:09: Pre-Merge check success! Now we will perform a full automated test which is expected to take 2 hours, thank you for your patience.
2022-12-04 23:16:23: =========TEST START==========
2022-12-04 23:16:49: Pre-Merge check success! Now we will perform a full automated test which is expected to take 2 hours, thank you for your patience.
2022-12-05 14:00:04: =========TEST START==========
2022-12-05 14:00:36: Pre-Merge check success! Now we will perform a full automated test which is expected to take 2 hours, thank you for your patience.
2022-12-05 21:19:44: =========TEST START==========
2022-12-05 21:20:11: Pre-Merge check success! Now we will perform a full automated test which is expected to take 2 hours, thank you for your patience.
2022-12-05 23:48:28: =========TEST START==========
2022-12-05 23:48:54: Pre-Merge check success! Now we will perform a full automated test which is expected to take 2 hours, thank you for your patience.

[codecov]

Codecov Report

Merging #832 (6ec81ac) into main (1ee83ed) will increase coverage by 2.53%.
The diff coverage is 5.00%.

@@            Coverage Diff             @@
##             main     #832      +/-   ##
==========================================
+ Coverage   57.22%   59.76%   +2.53%     
==========================================
  Files         162      135      -27     
  Lines       29028    22068    -6960     
==========================================
- Hits        16612    13188    -3424     
+ Misses      10207     7268    -2939     
+ Partials     2209     1612     -597     

Impacted Files	Coverage Δ
common/model/naming.go	70.83% <ø> (ø)
store/boltdb/maintain.go	40.90% <0.00%> (-21.16%)	⬇️
store/boltdb/service.go	55.94% <0.00%> (ø)
store/boltdb/default.go	59.32% <100.00%> (ø)
cache/service.go	83.02% <0.00%> (-0.37%)	⬇️
store/mock/maintain_mock.go
store/mysql/base_db.go
store/mysql/circuitbreaker_config.go
store/mysql/client.go
store/mysql/common.go
... and 22 more

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[shichaoyuan]

@chuntaojun 先改了一版支持多leader，看一下

[chuntaojun]

新增的逻辑覆盖率有点低，看看补一些测试用例吧

[chuntaojun]

代码组织结构有点调整，辛苦处理下