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metrics: fix patrol panel #8116

Merged
merged 4 commits into from
May 8, 2024
Merged

metrics: fix patrol panel #8116

merged 4 commits into from
May 8, 2024

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lhy1024
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@lhy1024 lhy1024 commented Apr 23, 2024 •
edited

What problem does this PR solve?

Issue Number: Close #8115

What is changed and how does it work?

Check List

Tests

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

tiup play ground with resign leader

Before
image

After
image

tiup with ms

image

operator with ms

image

Release note

None.

@lhy1024
metrics: fix patrol panel
6e7cfce 
Signed-off-by: lhy1024 <admin@liudos.us>
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ti-chi-bot bot commented Apr 23, 2024 •
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[REVIEW NOTIFICATION]

This pull request has been approved by:

  • HuSharp
  • rleungx

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@ti-chi-bot ti-chi-bot bot requested review from nolouch and rleungx April 23, 2024 06:49
@ti-chi-bot ti-chi-bot bot added the size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. label Apr 23, 2024
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codecov bot commented Apr 23, 2024 •
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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.38%. Comparing base (a3c5950) to head (538e2f3).

Additional details and impacted files 
@@            Coverage Diff             @@
##           master    #8116      +/-   ##
==========================================
+ Coverage   77.35%   77.38%   +0.02%     
==========================================
  Files         471      471              
  Lines       61348    61348              
==========================================
+ Hits        47458    47473      +15     
+ Misses      10314    10306       -8     
+ Partials     3576     3569       -7
Flag Coverage Δ
unittests 77.38% <ø> (+0.02%) ⬆️

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rleungx
rleungx reviewed Apr 23, 2024
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metrics/grafana/pd.json Outdated
@@ -7909,7 +7909,7 @@
"tableColumn": "",
"targets": [
{
"expr": "pd_checker_patrol_regions_time{k8s_cluster=\"$k8s_cluster\", tidb_cluster=\"$tidb_cluster\"} != 0",
"expr": "max(pd_checker_patrol_regions_time{k8s_cluster=\"$k8s_cluster\", tidb_cluster=\"$tidb_cluster\"})",
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I don't think max is right

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image
How about showing all results? Or do you have any good ideas?

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will it auto-hidden if no scheduling service?

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Shall we use the latest one?

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It may be complex to return the latest values from multiple time series. https://stackoverflow.com/questions/76930324/return-most-recent-value-of-multiple-time-series-in-prometheus-promql

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If we're sure that patrol won't be reported by different nodes, perhaps we can use sum() directly.

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lhy1024 commented May 7, 2024

max(max(pd_checker_patrol_regions_time{k8s_cluster="$k8s_cluster", tidb_cluster="$tidb_cluster"})by(instance))

We try to build a case, pd_checker_patrol_regions_time in old leader is 12.7ms, pd_checker_patrol_regions_time in new leader is 10.1ms
image
image

max(max(pd_checker_patrol_regions_time{k8s_cluster="$k8s_cluster", tidb_cluster="$tidb_cluster"})by(instance)) show 10.1 ms
image

@lhy1024 lhy1024 requested a review from rleungx May 7, 2024 17:10
@lhy1024
fix lint
538e2f3 
Signed-off-by: lhy1024 <admin@liudos.us>
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@ti-chi-bot 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 8, 2024
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lhy1024 commented May 8, 2024

/merge

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ti-chi-bot bot commented May 8, 2024

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

Commit hash: 538e2f3

@ti-chi-bot ti-chi-bot bot added the status/can-merge Indicates a PR has been approved by a committer. label May 8, 2024
@ti-chi-bot ti-chi-bot bot merged commit 44d57b6 into tikv:master May 8, 2024
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In response to a cherrypick label: new pull request created to branch release-8.1: #8152.

@ti-chi-bot ti-chi-bot mentioned this pull request May 8, 2024
Merged
ti-chi-bot bot pushed a commit that referenced this pull request May 8, 2024
@ti-chi-bot @lhy1024
metrics: fix patrol panel (#8116) (#8152)
0513a6b 
close #8115

Signed-off-by: lhy1024 <admin@liudos.us>

Co-authored-by: lhy1024 <admin@liudos.us>
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@rleungx rleungx rleungx approved these changes

@HuSharp HuSharp HuSharp approved these changes

@nolouch nolouch Awaiting requested review from nolouch

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pdms: metric for patrol region time show error after deploy cluster with tiup
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