Schedule: track the waiting tasks with task ID, and deleted the scheduled task with exceeded state from the waiting tasks queue (#4958)

[ti-chi-bot]

This is an automated cherry-pick of #4958

… queue

Signed-off-by: fzhedu fzhedu@gmail.com

What problem does this PR solve?

Issue Number: close #4954

Problem Summary:
It is a rule that the lifecycle of a task in the minTSO schedule should be covered by the taskManager.
However, the scheduled tasks due to exceeding the hard limit are not removed from the waiting task queue of the schedule, but will ungester from the taskManager, so the waiting task queue hold the last reference of the task, which break the rule.

to fundamentally prevent from the probem above, we track the waiting tasks with its task ID.

What is changed and how it works?

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

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• fzhedu
• windtalker

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[ti-chi-bot]

@ti-chi-bot: This cherry pick PR is for a release branch and has not yet been approved by release team.
Adding the do-not-merge/cherry-pick-not-approved label.

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[fzhedu]

LGTM

[windtalker]

LGTM

[JaySon-Huang]

close as no plan for v6.0.1