coordinator: use a healthy region count to start coordinator by HuSharp · Pull Request #7044 · tikv/pd

HuSharp · 2023-09-05T03:38:52Z

What problem does this PR solve?

Issue Number: Close #6988 ,Close #7016

What is changed and how does it work?

different source of region, regard FromSync and FromStorage as the stale region
add a stale region count in regionTree to start coordinator first.
atomic add/sub stale regions number by region updated

Check List

Tests

Unit test
Integration test
Manual test (add detailed scripts or steps below)

Release note

use a healthy region count to avoid starting coordinator timeout.

ti-chi-bot · 2023-09-05T03:38:54Z

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bufferflies
nolouch

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ti-chi-bot · 2023-09-05T03:38:54Z

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

Signed-off-by: husharp <jinhao.hu@pingcap.com>

rleungx · 2023-09-06T06:36:09Z

pkg/core/region.go

+
+const (
+	// InDisk means region is stale.
+	InDisk RegionSource = iota


How about FromLoad or FromStorage?

update to FromStorage

Signed-off-by: husharp <jinhao.hu@pingcap.com>

codecov · 2023-09-06T07:19:10Z

Codecov Report

Merging #7044 (a9d6e3e) into master (0adb86f) will increase coverage by 0.07%.
The diff coverage is 94.44%.

@@            Coverage Diff             @@
##           master    #7044      +/-   ##
==========================================
+ Coverage   74.62%   74.69%   +0.07%     
==========================================
  Files         442      442              
  Lines       47660    47681      +21     
==========================================
+ Hits        35565    35615      +50     
+ Misses       8972     8947      -25     
+ Partials     3123     3119       -4

Flag	Coverage Δ
unittests	`74.69% <94.44%> (+0.07%)`	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

pkg/core/region.go

Signed-off-by: husharp <jinhao.hu@pingcap.com>

Signed-off-by: husharp <ihusharp@gmail.com>

pkg/core/region_tree.go

JmPotato · 2023-09-11T05:45:21Z

pkg/core/region_tree.go

 }
+
+func (t *regionTree) AtomicAddStaleRegionCnt() {
+	if t.length() == 0 {


Why do we need to check the length here?

Now we do not need to check it after moving staleRegionCnt into regionsInfo

pkg/schedule/prepare_checker.go

pkg/syncer/client.go

rleungx · 2023-09-11T07:08:15Z

pkg/schedule/prepare_checker.go

+		return true
+	}
 	// The number of active regions should be more than total region of all stores * collectFactor
 	if float64(c.GetTotalRegionCount())*collectFactor > float64(checker.sum) {


Do we still need it?

maybe it is better to remove them in another pr? This pr just focuses on accelerating coordinator.
What do u think :)

rleungx · 2023-09-11T07:11:20Z

pkg/core/region.go

+	// FromStorage means this region's meta info might be stale.
+	r.AtomicAddStaleRegionCnt()


Here we need to make sure that only reload from storage will use CheckAndPutRegion.

fixed by return regions num

rleungx · 2023-10-10T03:10:11Z

pkg/core/region.go

+)
+
+// IsSourceStale means this region's meta info might be stale.
+func (r *RegionInfo) IsSourceStale() bool {


How about not using stale/fresh? Just use LoadedFromStorage and !LoadedFromStorage. Or something like that.

Signed-off-by: husharp <jinhao.hu@pingcap.com>

nolouch

lgtm

nolouch · 2023-10-13T03:54:53Z

/merge

ti-chi-bot · 2023-10-13T03:54:55Z

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ti-chi-bot · 2023-10-13T03:54:57Z

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

Details

Commit hash: 6281684

ti-chi-bot · 2023-10-13T03:55:10Z

@HuSharp: Your PR was out of date, I have automatically updated it for you.

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close tikv#6988, close tikv#7016 Signed-off-by: husharp <jinhao.hu@pingcap.com> Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>

ti-chi-bot · 2023-11-14T05:31:03Z

In response to a cherrypick label: new pull request created to branch release-6.5: #7363.

ti-chi-bot · 2023-11-14T05:33:46Z

In response to a cherrypick label: new pull request created to branch release-7.1: #7364.

…7363) close #6988, close #7016 Signed-off-by: husharp <jinhao.hu@pingcap.com> Co-authored-by: husharp <jinhao.hu@pingcap.com> Co-authored-by: Hu# <jinhao.hu@pingcap.com> Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>

…7364) close #6988, close #7016 Signed-off-by: husharp <jinhao.hu@pingcap.com> Co-authored-by: husharp <jinhao.hu@pingcap.com> Co-authored-by: Hu# <jinhao.hu@pingcap.com>

close tikv#6988, close tikv#7016 Signed-off-by: husharp <jinhao.hu@pingcap.com> Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>

ti-chi-bot bot added release-note-none Denotes a PR that doesn't merit a release note. do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. do-not-merge/needs-triage-completed labels Sep 5, 2023

ti-chi-bot bot requested review from JmPotato and rleungx September 5, 2023 03:39

ti-chi-bot bot added the size/M Denotes a PR that changes 30-99 lines, ignoring generated files. label Sep 5, 2023

HuSharp force-pushed the fix_coordinator branch from c5d8bcf to 31e8d61 Compare September 6, 2023 02:53

ti-chi-bot bot added size/L Denotes a PR that changes 100-499 lines, ignoring generated files. and removed size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Sep 6, 2023

HuSharp force-pushed the fix_coordinator branch from 31e8d61 to eb8db24 Compare September 6, 2023 02:54

HuSharp changed the title ~~coordinator: use a region count to start coordinator~~ coordinator: use a stale region count to start coordinator Sep 6, 2023

HuSharp force-pushed the fix_coordinator branch 2 times, most recently from d34b261 to 4b862b9 Compare September 6, 2023 03:42

fix

accb06b

Signed-off-by: husharp <jinhao.hu@pingcap.com>

HuSharp force-pushed the fix_coordinator branch from 4b862b9 to accb06b Compare September 6, 2023 04:31

HuSharp marked this pull request as ready for review September 6, 2023 04:49

ti-chi-bot bot removed the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label Sep 6, 2023

Merge branch 'master' into fix_coordinator

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rleungx reviewed Sep 6, 2023

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address comment

d161acb

Signed-off-by: husharp <jinhao.hu@pingcap.com>

JmPotato reviewed Sep 6, 2023

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address comment

6be6f17

Signed-off-by: husharp <jinhao.hu@pingcap.com>

HuSharp force-pushed the fix_coordinator branch from 18353dc to 6be6f17 Compare September 7, 2023 08:09

HuSharp added 2 commits September 11, 2023 10:44

Merge remote-tracking branch 'upstream/master' into fix_coordinator

1f16cda

address comment

68a1107

Signed-off-by: husharp <ihusharp@gmail.com>

JmPotato reviewed Sep 11, 2023

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rleungx reviewed Sep 11, 2023

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Merge branch 'master' into fix_coordinator

45d2cc5

rleungx reviewed Oct 10, 2023

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address comment

6281684

Signed-off-by: husharp <jinhao.hu@pingcap.com>

HuSharp force-pushed the fix_coordinator branch from 9574d70 to 6281684 Compare October 10, 2023 09:04

HuSharp removed needs-cherry-pick-release-6.5 Should cherry pick this PR to release-6.5 branch. needs-cherry-pick-release-7.1 Should cherry pick this PR to release-7.1 branch. labels Oct 11, 2023

nolouch approved these changes Oct 13, 2023

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ti-chi-bot bot added status/LGT2 Indicates that a PR has LGTM 2. and removed status/LGT1 Indicates that a PR has LGTM 1. labels Oct 13, 2023

ti-chi-bot bot added the status/can-merge Indicates a PR has been approved by a committer. label Oct 13, 2023

Merge branch 'master' into fix_coordinator

a9d6e3e

ti-chi-bot bot merged commit 2ba7ed4 into tikv:master Oct 13, 2023

HuSharp deleted the fix_coordinator branch October 16, 2023 08:19

lhy1024 mentioned this pull request Oct 27, 2023

Datarace in TestPrepareChecker #7273

Closed

HuSharp added the needs-cherry-pick-release-6.5 Should cherry pick this PR to release-6.5 branch. label Nov 14, 2023

ti-chi-bot mentioned this pull request Nov 14, 2023

coordinator: use a healthy region count to start coordinator (#7044) #7363

Merged

HuSharp added the needs-cherry-pick-release-7.1 Should cherry pick this PR to release-7.1 branch. label Nov 14, 2023

ti-chi-bot mentioned this pull request Nov 14, 2023

coordinator: use a healthy region count to start coordinator (#7044) #7364

Merged

		// FromStorage means this region's meta info might be stale.
		r.AtomicAddStaleRegionCnt()

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What problem does this PR solve?

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Check List

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