Storage: DMFile supports read/write from S3.

[JinheLin]

What problem does this PR solve?

Issue Number: ref #6827

What is changed and how it works?

1. This PR adds support for DMFiles reading and writing S3.
2. S3RandomAccessFile is similar to PosixRandomAccessFile. If you pass a S3 filename to DMFile::restore it will automatically read from S3.
3. S3WritableFile is similar to PosixWritableFile. Theoretically, like DMFile::restore, if you pass a S3 filename in DMFile::create it will automatically write to S3.
4. However, in order to ensure atomic visibility of DMFile, currently code DMFile is written to local disk and then uploaded to S3. It still need some adaptation to support writing to S3 directly.

TODO:

• Support upload to S3 after code of DataStore merged.
• Support file cache.
• Merge small column data files before upload to S3.
• S3WritableFile support multi-thread upload to S3.

Note: Not support S3 when encryption enabled.

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:

• Lloyd-Pottiger
• flowbehappy

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[JinheLin]

/build

[ti-chi-bot]

@JinheLin: PR needs rebase.

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[flowbehappy]

LGTM

[JinheLin]

/run-all-tests

[JinheLin]

/build

[JaySon-Huang]

LGTM

[JaySon-Huang]

/merge

[ti-chi-bot]

@JaySon-Huang: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

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[ti-chi-bot]

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

Commit hash: 6029329

[JinheLin]

/merge

[ti-chi-bot]

@JinheLin: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

You only need to trigger /merge once, and 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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[ti-chi-bot]

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

Commit hash: 20b7de5

[ti-chi-bot]

@JinheLin: 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

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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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[flowbehappy]

/merge

[ti-chi-bot]

@flowbehappy: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

You only need to trigger /merge once, and 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.

If you have any questions about the PR merge process, please refer to pr process.

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 ti-community-infra/tichi repository.