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fix: set verbosity log level only for debug #5981

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simonpasquier
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Description

client-go functions can avoid costly logging evaluations by using this pattern:

if klog.V(2).Enabled() { klog.Info("log this") }

With this change, the klog verbosity is set to zero (except at debug log level where it is 6) to ensure that the performance optimization is preserved.

Type of change

What type of changes does your code introduce to the Prometheus operator? Put an x in the box that apply.

  • CHANGE (fix or feature that would cause existing functionality to not work as expected)
  • FEATURE (non-breaking change which adds functionality)
  • BUGFIX (non-breaking change which fixes an issue)
  • ENHANCEMENT (non-breaking change which improves existing functionality)
  • NONE (if none of the other choices apply. Example, tooling, build system, CI, docs, etc.)

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Please put a one-line changelog entry below. This will be copied to the changelog file during the release process.

Enable klog verbose level only when the log level is debug.

client-go functions can avoid costly logging evaluations by using this
pattern:

```
if klog.V(2).Enabled() { klog.Info("log this") }
```

With this change, the klog verbosity is set to zero (except at debug log
level where it is 6) to ensure that the performance optimization is
preserved.

Signed-off-by: Simon Pasquier <spasquie@redhat.com>
@simonpasquier simonpasquier requested a review from a team as a code owner October 9, 2023 12:11
@simonpasquier
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@ArthurSens ArthurSens left a comment

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I'm not entirely sure I understood the problem, but the changes look fine!

@simonpasquier simonpasquier merged commit 30f1b34 into prometheus-operator:main Oct 10, 2023
17 checks passed
@simonpasquier simonpasquier deleted the fix-klog-max-level branch October 10, 2023 06:45
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2 participants