executor: ignore spill action when trigger global memory kill

[wshwsh12]

What problem does this PR solve?

Issue Number: ref #37816

Problem Summary:

What is changed and how it works?

No matter what the behavior of SoftLimit and HardLimit is, when TiDB memory usage reaches the threshold, OOMAction(Panic or Log) will be triggered directly.

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:

• XuHuaiyu
• tiancaiamao

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[wshwsh12]

/merge

[ti-chi-bot]

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

Commit hash: 4a1859a

[ti-chi-bot]

@wshwsh12: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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[hawkingrei]

@wshwsh12 PTAL

--- FAIL: TestGlobalMemoryControl2 (0.98s)

panic: runtime error: index out of range [0] with length 0 [recovered]

	panic: runtime error: index out of range [0] with length 0


goroutine 109560 [running]:

testing.tRunner.func1.2({0x4a17500, 0xc004504018})

	GOROOT/src/testing/testing.go:1396 +0x24e

testing.tRunner.func1()

	GOROOT/src/testing/testing.go:1399 +0x39f

panic({0x4a17500, 0xc004504018})

	GOROOT/src/runtime/panic.go:884 +0x212

github.com/pingcap/tidb/executor_test.TestGlobalMemoryControl2(0x3efb2c6?)

	executor/executor_test.go:6158 +0x429

testing.tRunner(0xc0070fd6c0, 0x4e75d60)

	GOROOT/src/testing/testing.go:1446 +0x10b

created by testing.(*T).Run

	GOROOT/src/testing/testing.go:1493 +0x35f

[hawkingrei]

/hold

[hawkingrei]

/unhold

[hawkingrei]

/merge

[ti-chi-bot]

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

Commit hash: 774c0de