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*: track cluster-level analyze jobs and make it persistent #32215

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merged 51 commits into from Mar 31, 2022

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xuyifangreeneyes
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@xuyifangreeneyes xuyifangreeneyes commented Feb 9, 2022

What problem does this PR solve?

Issue Number: close #32403

Problem Summary:
show analyze status only shows analyze jobs on self instance and the previous analyze jobs are cleared after rebooting.

What is changed and how it works?

Previously analyze jobs are tracked in memory. In the PR we introduce a system table mysql.analyze_jobs and track analyze jobs in the system table. The implementation of show analyze status is changed to read recent 30 analyze jobs from mysql.analyze_jobs. In this way the analyze jobs are persistent even after rebooting TiDB. Besides, each TiDB server dumps analyze jobs into the same table so show analyze status shows cluster-level analyze jobs. We also introduce two more fields instance and process_id to indicate on which TiDB and which process the analyze job is executed.

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

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ti-chi-bot commented Feb 9, 2022

[REVIEW NOTIFICATION]

This pull request has been approved by:

  • time-and-fate
  • winoros

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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@ti-chi-bot ti-chi-bot added do-not-merge/needs-linked-issue do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. release-note-none size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Feb 9, 2022
@ti-chi-bot ti-chi-bot added size/XL Denotes a PR that changes 500-999 lines, ignoring generated files. and removed size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Feb 15, 2022
@xuyifangreeneyes xuyifangreeneyes marked this pull request as ready for review February 16, 2022 08:06
@xuyifangreeneyes xuyifangreeneyes requested a review from a team as a code owner February 16, 2022 08:06
@ti-chi-bot ti-chi-bot removed the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label Feb 16, 2022
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/cc @chrysan @winoros @qw4990

@ti-chi-bot ti-chi-bot added size/XXL Denotes a PR that changes 1000+ lines, ignoring generated files. and removed size/XL Denotes a PR that changes 500-999 lines, ignoring generated files. labels Feb 21, 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 Mar 28, 2022
@ti-chi-bot ti-chi-bot added the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Mar 29, 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 Mar 29, 2022
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sre-bot commented Mar 29, 2022

@ti-chi-bot ti-chi-bot added the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Mar 30, 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 Mar 31, 2022
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qw4990 commented Mar 31, 2022

/merge

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

Commit hash: 70f195f

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Mar 31, 2022
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/run-unit-test

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@xuyifangreeneyes: 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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improve show analyze status
6 participants