Use read index raft message 2

[CalvinNeo]

What is changed and how it works?

Issue Number: Close #xxx

What's Changed:

Related changes

• PR to update pingcap/docs/pingcap/docs-cn:
• Need to cherry-pick to the release branch

Check List

Tests

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

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Release note

[ti-chi-bot]

@CalvinNeo: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-unit-test	becef44	link	true	/test pull-unit-test

Full PR test history. Your PR dashboard.

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[wuhuizuo]

/lgtm
/approve

to refresh the tide context

[ti-chi-bot]

@wuhuizuo: adding LGTM is restricted to approvers and reviewers in OWNERS files.

In response to this:

/lgtm
/approve

to refresh the tide context

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 kubernetes/test-infra repository.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: wuhuizuo
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