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*: Move stale read context to TxnManager #33812

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ti-chi-bot merged 18 commits intopingcap:masterfrom
lcwangchao:stalenessprovider
Apr 25, 2022
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*: Move stale read context to TxnManager #33812
ti-chi-bot merged 18 commits intopingcap:masterfrom
lcwangchao:stalenessprovider

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@lcwangchao lcwangchao commented Apr 8, 2022 •
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What problem does this PR solve?

Issue Number: close #33832, close #33014, close #31954

What is changed and how it works?

  • Provide StalenessTxnContextProvider to provide stale read context, including infoschema and readTS
  • Adding two methods to TxnManager : GetReadTS and GetForUpdateTS
  • After putting stale read informations to the context, there is no necessary to pass them to executor builder, so remove snapshotTS and staleness when constructing executerBuilder.
  • After putting stale read informations to the context, the issue Got error when stale read with scalar subquery #31954 will be fixed.

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.

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ti-chi-bot commented Apr 8, 2022 •
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@ti-chi-bot ti-chi-bot added do-not-merge/needs-linked-issue release-note-none Denotes a PR that doesn't merit a release note. size/XL Denotes a PR that changes 500-999 lines, ignoring generated files. labels Apr 8, 2022
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lcwangchao commented Apr 8, 2022

/run-mysql-test

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sre-bot commented Apr 8, 2022 •
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Code Coverage Details: https://codecov.io/github/pingcap/tidb/commit/62a7b14c2b6d9b488efc5e26089ddb9fb7971f4b

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lcwangchao commented Apr 8, 2022

/run-unit-test

@ti-chi-bot ti-chi-bot added needs-cherry-pick-release-5.4 Should cherry pick this PR to release-5.4 branch. needs-cherry-pick-6.0 and removed do-not-merge/needs-linked-issue labels Apr 8, 2022
@lcwangchao lcwangchao removed needs-cherry-pick-release-5.4 Should cherry pick this PR to release-5.4 branch. needs-cherry-pick-6.0 labels Apr 8, 2022
@ti-chi-bot ti-chi-bot added needs-cherry-pick-release-5.4 Should cherry pick this PR to release-5.4 branch. needs-cherry-pick-6.0 labels Apr 11, 2022
@lcwangchao lcwangchao removed needs-cherry-pick-release-5.4 Should cherry pick this PR to release-5.4 branch. needs-cherry-pick-6.0 labels Apr 11, 2022
@ti-chi-bot ti-chi-bot added needs-cherry-pick-release-5.4 Should cherry pick this PR to release-5.4 branch. needs-cherry-pick-6.0 labels Apr 11, 2022
@ti-chi-bot ti-chi-bot added needs-cherry-pick-release-5.4 Should cherry pick this PR to release-5.4 branch. needs-cherry-pick-6.0 and removed needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. labels Apr 15, 2022
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lcwangchao commented Apr 15, 2022

/run-mysql-test

@lcwangchao lcwangchao mentioned this pull request Apr 19, 2022
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@lcwangchao lcwangchao removed the needs-cherry-pick-release-5.4 Should cherry pick this PR to release-5.4 branch. label Apr 20, 2022
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The rest LGTM.

@ti-chi-bot ti-chi-bot added needs-cherry-pick-release-5.4 Should cherry pick this PR to release-5.4 branch. needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. labels Apr 25, 2022
@ti-chi-bot ti-chi-bot removed the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Apr 25, 2022
@ti-chi-bot ti-chi-bot added status/LGT2 Indicates that a PR has LGTM 2. and removed status/LGT1 Indicates that a PR has LGTM 1. labels Apr 25, 2022
@lcwangchao lcwangchao removed needs-cherry-pick-release-5.4 Should cherry pick this PR to release-5.4 branch. needs-cherry-pick-6.0 labels Apr 25, 2022
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lcwangchao commented Apr 25, 2022

/merge

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ti-chi-bot commented Apr 25, 2022

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

DetailsCommit hash: 62a7b14

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Apr 25, 2022
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lcwangchao commented Apr 25, 2022

/run-mysql-test

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lcwangchao commented Apr 25, 2022

/run-mysql-test

@ti-chi-bot ti-chi-bot merged commit d23a814 into pingcap:master Apr 25, 2022
@lcwangchao lcwangchao deleted the stalenessprovider branch April 25, 2022 08:52
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sre-bot commented Apr 25, 2022

TiDB MergeCI notify

✅ Well Done! New fixed [1] after this pr merged.

CI Name Result Duration Compare with Parent commit
idc-jenkins-ci-tidb/integration-common-test ✅ all 11 tests passed 10 min Fixed
idc-jenkins-ci-tidb/tics-test 🟢 all 1 tests passed 8 min 43 sec Existing passed
idc-jenkins-ci-tidb/integration-ddl-test 🟢 all 6 tests passed 7 min 29 sec Existing passed
idc-jenkins-ci-tidb/sqllogic-test-2 🟢 all 28 tests passed 6 min 51 sec Existing passed
idc-jenkins-ci-tidb/common-test 🟢 all 12 tests passed 5 min 49 sec Existing passed
idc-jenkins-ci-tidb/sqllogic-test-1 🟢 all 26 tests passed 5 min 16 sec Existing passed
idc-jenkins-ci-tidb/mybatis-test 🟢 all 1 tests passed 4 min 49 sec Existing passed
idc-jenkins-ci-tidb/integration-compatibility-test 🟢 all 1 tests passed 4 min 37 sec Existing passed
idc-jenkins-ci-tidb/plugin-test 🟢 build success, plugin test success 4min Existing passed

espresso98 pushed a commit to espresso98/tidb that referenced this pull request Apr 25, 2022
@lcwangchao @espresso98
*: Move stale read context to TxnManager (pingcap#33812)
e4fe87c 
close pingcap#31954, close pingcap#33014, close pingcap#33832
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@JmPotato JmPotato JmPotato approved these changes

@xhebox xhebox xhebox approved these changes

@Yisaer Yisaer Awaiting requested review from Yisaer

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Successfully merging this pull request may close these issues.

Move the stale read context to the txn provider Add GetReadTS and GetForUpdateTS for TxnManager Got error when stale read with scalar subquery

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