ddl, domain: fix a bug which causes MDL blocking

[wjhuang2016]

What problem does this PR solve?

Issue Number: close #43755

Problem Summary:

What is changed and how it works?

If writing to ETCD fail, we should retry.

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

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• hawkingrei
• tangenta

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
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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[hawkingrei]

/merge

[ti-chi-bot]

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

Commit hash: 965e910

[hawkingrei]

@wjhuang2016 Please run make bazel_prepare.

[hawkingrei]

/merge

[ti-chi-bot]

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

Commit hash: e2afcb3

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.5: #43784.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.1: #43785.

[wjhuang2016]

/cherry-pick

[wjhuang2016]

/cherry-pick release-6.5-20230425-v6.5.2

[ti-chi-bot]

@wjhuang2016: new pull request created to branch release-6.5-20230425-v6.5.2: #43816.

In response to this:

/cherry-pick release-6.5-20230425-v6.5.2

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