DDL: add log when TiFlash replica available changed

[hehechen]

Signed-off-by: hehechen [email protected]

What problem does this PR solve?

Issue Number: close #39242

Problem Summary:
Currently partition tables only print log about partitionID but not tableID when they become available, it's inconvenient to find out if the partition table available when address bugs.

What is changed and how it works?

Add log when TiFlash replica available changed

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:

• breezewish
• windtalker

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[hehechen]

/cc @breezewish @CalvinNeo @windtalker

[breezewish]

Could you describe in the PR body or issue body about why do we need this change?

[hehechen]

Could you describe in the PR body or issue body about why do we need this change?

done

[CalvinNeo]

lgtm

[ti-chi-bot]

@CalvinNeo: Thanks for your review. The bot only counts approvals from reviewers and higher roles in list, but you're still welcome to leave your comments.

In response to this:

lgtm

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[windtalker]

LGTM

[hehechen]

/assign @breezewish

[hawkingrei]

/merge

[ti-chi-bot]

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

Commit hash: 7328b3d

[sre-bot]

TiDB MergeCI notify

✅ Well Done! New fixed [2] after this pr merged.

CI Name	Result	Duration	Compare with Parent commit
idc-jenkins-ci-tidb/common-test	✅ all 11 tests passed	9 min 49 sec	Fixed
idc-jenkins-ci-tidb/integration-ddl-test	✅ all 6 tests passed	6 min 45 sec	Fixed
idc-jenkins-ci/integration-cdc-test	🟢 all 39 tests passed	22 min	Existing passed
idc-jenkins-ci-tidb/integration-common-test	🟢 all 17 tests passed	11 min	Existing passed
idc-jenkins-ci-tidb/tics-test	🟢 all 1 tests passed	6 min 58 sec	Existing passed
idc-jenkins-ci-tidb/mybatis-test	🟢 all 1 tests passed	6 min 28 sec	Existing passed
idc-jenkins-ci-tidb/sqllogic-test-2	🟢 all 28 tests passed	5 min 59 sec	Existing passed
idc-jenkins-ci-tidb/sqllogic-test-1	🟢 all 26 tests passed	5 min 8 sec	Existing passed
idc-jenkins-ci-tidb/integration-compatibility-test	🟢 all 1 tests passed	2 min 58 sec	Existing passed
idc-jenkins-ci-tidb/plugin-test	🟢 build success, plugin test success	4min	Existing passed