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telemetry: Log error reason for failure to get SQL Metric (#40778) #41137

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This is an automated cherry-pick of #40778

What problem does this PR solve?

Issue Number: close #40777

Problem Summary:

What is changed and how it works?

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

None

With this PR:

[2023/01/26 10:57:37.536 +01:00] [INFO] [data_window.go:257] ["Error exists when getting the SQL Metric."] [error="[domain:9009]Prometheus address is not set in PD and etcd"]

Without this PR:

[2023/01/26 10:38:30.918 +01:00] [INFO] [data_window.go:256] ["Error exists when getting the SQL Metric."]
[2023/01/26 10:39:30.920 +01:00] [INFO] [data_window.go:256] ["Error exists when getting the SQL Metric."]
[2023/01/26 10:40:30.922 +01:00] [INFO] [data_window.go:256] ["Error exists when getting the SQL Metric."]
[2023/01/26 10:41:30.931 +01:00] [INFO] [data_window.go:256] ["Error exists when getting the SQL Metric."]

With JSON formatted logs:
```
$ jq 'select(.error) | select(.error | contains("Prometheus"))' tidb.log
{
  "level": "INFO",
  "time": "2023/01/27 10:00:35.554 +01:00",
  "caller": "data_slow_query.go:67",
  "message": "Failed to get Slow Query Stats",
  "error": "[domain:9009]Prometheus address is not set in PD and etcd"
}
{
  "level": "INFO",
  "time": "2023/01/27 10:01:36.223 +01:00",
  "caller": "data_window.go:257",
  "message": "Error exists when getting the SQL Metric.",
  "error": "[domain:9009]Prometheus address is not set in PD and etcd"
}
{
  "level": "INFO",
  "time": "2023/01/27 10:02:36.225 +01:00",
  "caller": "data_window.go:257",
  "message": "Error exists when getting the SQL Metric.",
  "error": "[domain:9009]Prometheus address is not set in PD and etcd"
}
```
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ti-chi-bot commented Feb 7, 2023

[REVIEW NOTIFICATION]

This pull request has been approved by:

  • YangKeao
  • dveeden

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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@ti-chi-bot ti-chi-bot added release-note-none Denotes a PR that doesn't merit a release note. do-not-merge/cherry-pick-not-approved size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. labels Feb 7, 2023
@ti-chi-bot ti-chi-bot added the type/cherry-pick-for-release-6.1 This PR is cherry-picked to release-6.1 from a source PR. label Feb 7, 2023
@ti-chi-bot ti-chi-bot added the status/LGT1 Indicates that a PR has LGTM 1. label Mar 17, 2023
@@ -61,7 +62,7 @@ func getFeatureUsage(ctx sessionctx.Context) (*featureUsage, error) {
var err error
usage.NewClusterIndex, usage.ClusterIndex, err = getClusterIndexUsageInfo(ctx)
if err != nil {
logutil.BgLogger().Info(err.Error())
logutil.BgLogger().Info("Failed to get feature usage", zap.Error(err))
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How about make it more clear, for example something like: 'Failed to get cluster index usage'?

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Just realized this is a cherry-pick. Please ignore this comment

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@sunxiaoguang sunxiaoguang left a comment

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Rest LGTM

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@sunxiaoguang: Thanks for your review. The bot only counts approvals from reviewers and higher roles in list, but you're still welcome to leave your comments.

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LGTM

@ti-chi-bot ti-chi-bot added status/LGT2 Indicates that a PR has LGTM 2. and removed status/LGT1 Indicates that a PR has LGTM 1. labels Mar 28, 2023
@VelocityLight VelocityLight added cherry-pick-approved Cherry pick PR approved by release team. and removed do-not-merge/cherry-pick-not-approved labels Mar 28, 2023
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/merge

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

Commit hash: d1103c8

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Mar 28, 2023
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/retest

@ti-chi-bot ti-chi-bot merged commit b317f6d into pingcap:release-6.1 Mar 29, 2023
@VelocityLight VelocityLight removed the cherry-pick-approved Cherry pick PR approved by release team. label Apr 12, 2023
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6 participants