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Restore ProbeForever behavior of probing first before sleeping #175

Merged
merged 2 commits into from
May 30, 2024
Merged

Restore ProbeForever behavior of probing first before sleeping #175

merged 2 commits into from
May 30, 2024

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Fricounet
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@Fricounet Fricounet commented May 30, 2024 •
edited by jsafrane
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What type of PR is this?

/kind bug

What this PR does / why we need it:

The previous beheavior of ProbeForever was to try a probe and then sleep for the probeInterval duration. When it was modified to use a time.Ticker instead of a sleep in #149, it changed the behavior to wait the probeInterval first and then do the probe. This PR restores the previous behavior by running the probe first because it is causing issues when trying to start some of the sidecars (kubernetes-csi/external-attacher#561). And in general, it slows down the startup of the sidecars by at least 1s, even when the plugin is already ready to accept connections.
Based on https://stackoverflow.com/a/54752803.

Which issue(s) this PR fixes:

Fixes #177

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Restored the previous behavior of `ProbeForever` to do a probe first before sleeping.

@Fricounet
[rpc] defer Stop ticker for GC
856c5da
@Fricounet
[rpc] Run the probe first
a8003ad 
The previous beheavior of ProbeForever was to try a probe and then sleep for the `probeInterval` duration. When it was modified to use a `time.Ticker` instead of a sleep, it changed the behavior to wait the `probeInterval` first and then do the probe. This commit restore the previous behavior by running the probe first. Based on https://stackoverflow.com/a/54752803.
@k8s-ci-robot k8s-ci-robot added release-note Denotes a PR that will be considered when it comes time to generate release notes. kind/bug Categorizes issue or PR as related to a bug. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. labels May 30, 2024
@k8s-ci-robot k8s-ci-robot added the needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. label May 30, 2024
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Hi @Fricounet. Thanks for your PR.

I'm waiting for a kubernetes-csi member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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@k8s-ci-robot k8s-ci-robot added the size/M Denotes a PR that changes 30-99 lines, ignoring generated files. label May 30, 2024
@Fricounet Fricounet mentioned this pull request May 30, 2024
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/ok-to-test

@k8s-ci-robot k8s-ci-robot added ok-to-test Indicates a non-member PR verified by an org member that is safe to test. and removed needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. labels May 30, 2024
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/lgtm
/approve

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label May 30, 2024
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Fricounet, jsafrane

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@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label May 30, 2024
@k8s-ci-robot k8s-ci-robot merged commit e2e2abb into kubernetes-csi:master May 30, 2024
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I've tagged v0.18.1, I (or dependabot) will update all sidecars.

@jsafrane jsafrane mentioned this pull request May 31, 2024
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@Fricounet Fricounet deleted the fricounet/probe-first branch May 31, 2024 08:25
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ProbeForever has 1 second delay
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