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br: make download metadata concurrency adjustable (#45639) #46109

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This is an automated cherry-pick of #45639

What problem does this PR solve?

Issue Number: close #45511

Problem Summary:
There are metadatas at most 10 MB each, and keep 512 metadatas in the memory at once. This will make GC too late.

What is changed and how it works?

make the 512 adjustable by config

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 ti-chi-bot added ok-to-test Indicates a PR is ready to be tested. release-note-none Denotes a PR that doesn't merit a release note. size/L Denotes a PR that changes 100-499 lines, ignoring generated files. type/cherry-pick-for-release-6.5 This PR is cherry-picked to release-6.5 from a source PR. labels Aug 15, 2023
Signed-off-by: Leavrth <[email protected]>
@ti-chi-bot ti-chi-bot bot added the needs-1-more-lgtm Indicates a PR needs 1 more LGTM. label Aug 15, 2023
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Leavrth commented Aug 16, 2023

/retest

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codecov bot commented Aug 16, 2023

Codecov Report

❗ No coverage uploaded for pull request base (release-6.5@aecde7c). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files
@@               Coverage Diff                @@
##             release-6.5     #46109   +/-   ##
================================================
  Coverage               ?   73.6770%           
================================================
  Files                  ?       1083           
  Lines                  ?     347734           
  Branches               ?          0           
================================================
  Hits                   ?     256200           
  Misses                 ?      75091           
  Partials               ?      16443           

@ti-chi-bot ti-chi-bot bot added the lgtm label Aug 16, 2023
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ti-chi-bot bot commented Aug 16, 2023

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: 3pointer, BornChanger

The full list of commands accepted by this bot can be found here.

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@ti-chi-bot ti-chi-bot bot removed the needs-1-more-lgtm Indicates a PR needs 1 more LGTM. label Aug 16, 2023
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ti-chi-bot bot commented Aug 16, 2023

[LGTM Timeline notifier]

Timeline:

  • 2023-08-15 12:32:42.99290586 +0000 UTC m=+634327.541921847: ☑️ agreed by BornChanger.
  • 2023-08-16 05:32:12.846625704 +0000 UTC m=+695497.395641688: ☑️ agreed by 3pointer.

@ti-chi-bot ti-chi-bot bot added the approved label Aug 16, 2023
@ti-chi-bot ti-chi-bot added the cherry-pick-approved Cherry pick PR approved by release team. label Aug 16, 2023
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Leavrth commented Aug 16, 2023

/retest

1 similar comment
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Leavrth commented Aug 16, 2023

/retest

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Leavrth commented Aug 16, 2023

/retest

5 similar comments
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Leavrth commented Aug 16, 2023

/retest

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Leavrth commented Aug 16, 2023

/retest

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Leavrth commented Aug 16, 2023

/retest

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/retest

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Leavrth commented Aug 17, 2023

/retest

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Leavrth commented Aug 17, 2023

/retest

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/retest

@ti-chi-bot ti-chi-bot bot merged commit b130a12 into pingcap:release-6.5 Aug 17, 2023
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4 participants