backup, restore: Write correct api-version in rawkv backup/restore

[peng1999]

Signed-off-by: Peng Guanwen pg999w@outlook.com

What problem does this PR solve?

Issue Number: close #31121

Problem Summary:

BR backup should know the current API version of TiKV and write it in backupmeta.

What is changed and how it works?

Only RawKV backup/restore is changed because TiDB data is compatible across API V1 and V2.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• andylokandy
• kennytm

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[kennytm]

[2021-12-29T08:09:55.616Z] /go/pkg/mod/github.com/tikv/client-go/v2@v2.0.0-rc.0.20211223062159-300275dee63e/internal/mockstore/mocktikv/pd.go:70:9: cannot use &pdClient{...} (type *pdClient) as type pd.Client in return argument:

[2021-12-29T08:09:55.616Z] 	*pdClient does not implement pd.Client (missing LoadGlobalConfig method)

[2021-12-29T08:09:55.616Z] # github.com/tikv/client-go/v2/internal/mockstore/mocktikv

[2021-12-29T08:09:55.616Z] /go/pkg/mod/github.com/tikv/client-go/v2@v2.0.0-rc.0.20211223062159-300275dee63e/internal/mockstore/mocktikv/pd.go:70:9: cannot use &pdClient{...} (type *pdClient) as type pd.Client in return argument:

[2021-12-29T08:09:55.616Z] 	*pdClient does not implement pd.Client (missing LoadGlobalConfig method)

[sre-bot]

Code Coverage Details: https://codecov.io/github/pingcap/tidb/commit/3f07dedc44d1c7b13f18e665b62fa5eb537a0ebf

[kennytm]

rest lgtm

[kennytm]

does this mean this PR is blocked by #31010?

[peng1999]

This is blocked by tikv/client-go#405. The root cause of the compilation error is an API breakage introduced in pingcap/kvproto#828. The fix here is copied from #31010.

[kennytm]

/hold on tikv/client-go#405

[peng1999]

If #31219 (likely to get merged early than tikv/client-go#405) gets merged, this one will also be unblocked.

[Mini256]

/hold

In order to avoid the waste of the CI resource caused by the all test rerun, which is triggered by the merge base operation, I hold this PR, and it can be canceled through the /unhold command after the test fails problem to be resolved.

cc: @kennytm @hawkingrei

[andylokandy]

/merge

[ti-chi-bot]

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

Commit hash: 3f07ded

[Mini256]

/unhold

It seems ready to merge.