*: use a separate runner for updating subtree #8158

rleungx · 2024-05-09T03:28:47Z

What problem does this PR solve?

Issue Number: Ref #7897

What is changed and how does it work?

Check List

Tests

Manual test

Release note

None.

ti-chi-bot · 2024-05-09T03:28:50Z

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JmPotato
nolouch

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codecov · 2024-05-09T06:01:16Z

Codecov Report

Attention: Patch coverage is 93.33333% with 5 lines in your changes are missing coverage. Please review.

Project coverage is 77.38%. Comparing base (7731ee4) to head (eae4f6a).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8158      +/-   ##
==========================================
+ Coverage   77.34%   77.38%   +0.03%     
==========================================
  Files         471      471              
  Lines       61398    61407       +9     
==========================================
+ Hits        47489    47520      +31     
+ Misses      10350    10325      -25     
- Partials     3559     3562       +3

Flag	Coverage Δ
unittests	`77.38% <93.33%> (+0.03%)`	⬆️

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

pkg/ratelimit/metrics.go

pkg/ratelimit/runner.go

JmPotato · 2024-05-13T04:24:18Z

pkg/ratelimit/metrics.go

+	prometheus.MustRegister(RunnerPendingTasks)
+	prometheus.MustRegister(RunnerFailedTasks)
+	prometheus.MustRegister(RunnerTaskExecutionDuration)
+	prometheus.MustRegister(RunnerSucceededTasks)


Should we also add metrics to tell the task number of different priorities?

pkg/ratelimit/runner.go

rleungx · 2024-05-16T03:55:04Z

server/cluster/cluster.go

@@ -1121,7 +1122,7 @@ func (c *RaftCluster) processRegionHeartbeat(ctx *core.MetaProcessContext, regio
 	tracer.OnCollectRegionStatsFinished()
 	if c.storage != nil {
 		if saveKV {
-			ctx.TaskRunner.RunTask(
+			ctx.StatisticsRunner.RunTask(


SaveRegionToKV is put into the statistics runner, the runner name might be strange. But I cannot come up with a better name.

How about just calling it MiscRunner?

Signed-off-by: Ryan Leung <[email protected]>

nolouch · 2024-05-17T06:04:05Z

pkg/mcs/scheduling/server/cluster.go

 	if c.persistConfig.GetScheduleConfig().EnableHeartbeatConcurrentRunner {
-		taskRunner = c.heartbeatRunnner
+		taskRunner = c.heartbeatRunner


need to add in here?

statisticsRunner = c.statisticsRunner

nolouch

rest lgtm

Signed-off-by: Ryan Leung <[email protected]>

JmPotato · 2024-05-20T03:20:43Z

pkg/core/context.go

+	TaskRunner       ratelimit.Runner
+	StatisticsRunner ratelimit.Runner
+	LogRunner        ratelimit.Runner


Could you please help add some comments here to explain the different responsibilities of these runners?

JmPotato · 2024-05-20T03:23:09Z

pkg/ratelimit/runner.go

 	f           func(context.Context)
 	name        string
+	retained    bool


This naming is vague without looking at the actual logic, maybe a line of comment would be helpful.

JmPotato · 2024-05-20T03:24:31Z

server/cluster/cluster.go

@@ -1121,7 +1122,7 @@ func (c *RaftCluster) processRegionHeartbeat(ctx *core.MetaProcessContext, regio
 	tracer.OnCollectRegionStatsFinished()
 	if c.storage != nil {
 		if saveKV {
-			ctx.TaskRunner.RunTask(
+			ctx.StatisticsRunner.RunTask(


How about just calling it MiscRunner?

Signed-off-by: Ryan Leung <[email protected]>

rleungx · 2024-05-21T09:57:57Z

/merge

ti-chi-bot · 2024-05-21T09:57:58Z

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ti-chi-bot · 2024-05-21T09:58:00Z

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

Commit hash: eae4f6a

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 May 9, 2024

ti-chi-bot bot requested review from lhy1024 and nolouch May 9, 2024 03:28

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 May 9, 2024

rleungx force-pushed the queue branch from 1658f1f to 9d375e1 Compare May 9, 2024 05:48

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rleungx force-pushed the queue branch from 09cc309 to 3f47763 Compare May 15, 2024 10:10

rleungx changed the title *: distinguish the task priority *: use a separate runner for updating subtree May 16, 2024

rleungx commented May 16, 2024

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rleungx force-pushed the queue branch from 3f5723d to 129ad25 Compare May 16, 2024 05:54

rleungx added 4 commits May 17, 2024 13:32

distinguish the task priority

c0f2c94

Signed-off-by: Ryan Leung <[email protected]>

prevent oom

43c60cb

Signed-off-by: Ryan Leung <[email protected]>

address comments

d458613

Signed-off-by: Ryan Leung <[email protected]>

limit the count of high priority queue

835257a

Signed-off-by: Ryan Leung <[email protected]>

rleungx added 5 commits May 17, 2024 13:32

address comments

1c4336a

Signed-off-by: Ryan Leung <[email protected]>

address comments

1b64ad0

Signed-off-by: Ryan Leung <[email protected]>

split statistics runner

0f349a0

Signed-off-by: Ryan Leung <[email protected]>

remove high priority task queue

2004b2d

Signed-off-by: Ryan Leung <[email protected]>

tiny change

61951f2

Signed-off-by: Ryan Leung <[email protected]>

rleungx force-pushed the queue branch from 129ad25 to 61951f2 Compare May 17, 2024 05:33

rleungx requested a review from nolouch May 17, 2024 05:56

nolouch reviewed May 17, 2024

View reviewed changes

tiny fix

62d98f4

Signed-off-by: Ryan Leung <[email protected]>

rleungx requested a review from nolouch May 17, 2024 06:11

nolouch approved these changes May 17, 2024

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ti-chi-bot bot added the status/LGT1 Indicates that a PR has LGTM 1. label May 17, 2024

JmPotato reviewed May 20, 2024

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add more comments and rename

ed08415

Signed-off-by: Ryan Leung <[email protected]>

JmPotato approved these changes May 21, 2024

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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 May 21, 2024

Merge branch 'master' into queue

eae4f6a

ti-chi-bot bot added the status/can-merge Indicates a PR has been approved by a committer. label May 21, 2024

ti-chi-bot bot merged commit 58e7580 into tikv:master May 21, 2024
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rleungx deleted the queue branch May 21, 2024 10:12

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*: use a separate runner for updating subtree #8158

*: use a separate runner for updating subtree #8158

rleungx commented May 9, 2024 •

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JmPotato May 13, 2024

rleungx May 16, 2024

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JmPotato May 20, 2024

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rleungx commented May 21, 2024

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ti-chi-bot bot commented May 21, 2024

*: use a separate runner for updating subtree #8158

*: use a separate runner for updating subtree #8158

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rleungx commented May 9, 2024 • 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 May 9, 2024 • edited Loading

codecov bot commented May 9, 2024 • edited Loading

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rleungx commented May 21, 2024

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rleungx commented May 9, 2024 •

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