schedulers: region should splitted if region is too hot. #6618

bufferflies · 2023-06-16T01:35:12Z

What problem does this PR solve?

Issue Number: Close #6619

What is changed and how does it work?

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Need to cherry-pick to the release branch

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None.

Signed-off-by: bufferflies <[email protected]>

ti-chi-bot · 2023-06-16T01:35:15Z

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lhy1024 · 2023-06-16T02:20:29Z

pkg/schedule/schedulers/hot_region.go

+// regionIsTooHot returns true if any dim of the hot region is greater than the store threshold.
+func regionIsTooHot(store *statistics.StoreLoadDetail, region *statistics.HotPeerStat) bool {
+	return slice.AnyOf(store.LoadPred.Current.Loads, func(i int) bool {
+		return region.Loads[i] > store.LoadPred.Current.Loads[i]*0.3


add const regionTooHotThreshold = 0.3?

good suggestion, fixed

Signed-off-by: bufferflies <[email protected]>

HuSharp · 2023-06-16T06:36:04Z

Can u paste a picture to show region_is_too_hot?

lhy1024

LGTM. Do we need some manual test?

lhy1024

ci failed

Signed-off-by: bufferflies <[email protected]>

bufferflies · 2023-06-26T03:00:03Z

LGTM. Do we need some manual test?

yes, I have upload the manual test result.

Signed-off-by: bufferflies <[email protected]>

codecov · 2023-06-26T03:24:59Z

Codecov Report

Merging #6618 (6d8cdc7) into master (e18b9be) will increase coverage by 0.01%.
The diff coverage is 83.92%.

❗ Current head 6d8cdc7 differs from pull request most recent head 3bd39cb. Consider uploading reports for the commit 3bd39cb to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6618      +/-   ##
==========================================
+ Coverage   74.17%   74.18%   +0.01%     
==========================================
  Files         413      411       -2     
  Lines       43349    43067     -282     
==========================================
- Hits        32155    31951     -204     
+ Misses       8312     8247      -65     
+ Partials     2882     2869      -13

Flag	Coverage Δ
unittests	`74.18% <83.92%> (+0.01%)`	⬆️

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pkg/schedule/schedulers/hot_region.go

tonyxuqqi · 2023-06-30T21:59:06Z

/release

lhy1024

If workload is append write, split is not helpful

Signed-off-by: bufferflies <[email protected]>

…_region_split

Signed-off-by: bufferflies <[email protected]>

nolouch

lgtm

bufferflies · 2023-07-05T12:48:55Z

/hold

Signed-off-by: bufferflies <[email protected]>

lhy1024

LGTM, but ci failed

Signed-off-by: bufferflies <[email protected]>

bufferflies · 2023-07-11T02:29:55Z

/merge

ti-chi-bot · 2023-07-11T02:29:57Z

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ti-chi-bot · 2023-07-11T02:29:58Z

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

Commit hash: 1305bd3

close tikv#6619 Signed-off-by: bufferflies <[email protected]> Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>

bufferflies added 2 commits June 14, 2023 19:29

hot region

dea2914

Signed-off-by: bufferflies <[email protected]>

add test for write

f1676d4

Signed-off-by: bufferflies <[email protected]>

ti-chi-bot bot added do-not-merge/needs-linked-issue release-note-none Denotes a PR that doesn't merit a release note. labels Jun 16, 2023

ti-chi-bot bot requested review from disksing and Yisaer June 16, 2023 01:35

ti-chi-bot bot added size/L Denotes a PR that changes 100-499 lines, ignoring generated files. and removed do-not-merge/needs-linked-issue labels Jun 16, 2023

bufferflies requested review from lhy1024 and rleungx and removed request for disksing and Yisaer June 16, 2023 01:40

lhy1024 reviewed Jun 16, 2023

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extra const variable

9fe27cf

Signed-off-by: bufferflies <[email protected]>

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lhy1024 reviewed Jun 19, 2023

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lint

25b0145

Signed-off-by: bufferflies <[email protected]>

bufferflies force-pushed the hot_region_split branch from 0afad4a to 25b0145 Compare June 19, 2023 03:19

bufferflies changed the title ~~schedulers: region should splited if region is too hot.~~ schedulers: region should splitted if region is too hot. Jun 26, 2023

bufferflies added 2 commits June 26, 2023 11:09

pass ut

311bb19

Signed-off-by: bufferflies <[email protected]>

Merge branch 'master' into hot_region_split

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lhy1024 reviewed Jun 30, 2023

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pkg/schedule/schedulers/hot_region.go Show resolved Hide resolved

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bufferflies added 4 commits July 5, 2023 16:46

Merge branch 'master' into hot_region_split

7aa5c81

add config for split thresholds

a3faee3

Signed-off-by: bufferflies <[email protected]>

Merge branch 'hot_region_split' of github.com:bufferflies/pd into hot…

273b196

…_region_split

pass unit

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Signed-off-by: bufferflies <[email protected]>

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bufferflies added 5 commits July 6, 2023 15:15

avoid panic

a6006b1

Signed-off-by: bufferflies <[email protected]>

logic error

5f25ce5

Signed-off-by: bufferflies <[email protected]>

make config more reasonable

db9247d

Signed-off-by: bufferflies <[email protected]>

Merge branch 'master' into hot_region_split

019d0a0

pass ut

3628645

Signed-off-by: bufferflies <[email protected]>

lhy1024 approved these changes Jul 10, 2023

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bufferflies added 2 commits July 10, 2023 17:10

pass ut

6310efe

Signed-off-by: bufferflies <[email protected]>

update master

787f6f1

Signed-off-by: bufferflies <[email protected]>

bufferflies removed the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Jul 10, 2023

pass ut

1305bd3

Signed-off-by: bufferflies <[email protected]>

bufferflies force-pushed the hot_region_split branch from 57f720f to 1305bd3 Compare July 10, 2023 10:10

ti-chi-bot bot added the status/can-merge Indicates a PR has been approved by a committer. label Jul 11, 2023

Merge branch 'master' into hot_region_split

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ti-chi-bot bot merged commit 1d0bbb8 into tikv:master Jul 11, 2023

lhy1024 mentioned this pull request Jul 12, 2023

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schedulers: region should splitted if region is too hot. #6618

schedulers: region should splitted if region is too hot. #6618

bufferflies commented Jun 16, 2023 •

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ti-chi-bot bot commented Jul 11, 2023

schedulers: region should splitted if region is too hot. #6618

schedulers: region should splitted if region is too hot. #6618

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bufferflies commented Jun 16, 2023 • edited Loading

What problem does this PR solve?

What is changed and how does it work?

Check List

Release note

ti-chi-bot bot commented Jun 16, 2023 • edited Loading

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