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Revert "KCM: specifies the upper-bound timeout limit for outgoing requests" #101108

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p0lyn0mial
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What type of PR is this?

/kind bug

What this PR does / why we need it:

This reverts #99358 which set a timeout for the rest client used by KCM.

As it turned out (#101022) setting a timeout on HTTP client affects watch requests in an undesirable way.
For example, with a 10 second timeout watch requests are being re-established exactly after 10 seconds even though the default request timeout for them is ~5 minutes (informers).

Leaving a timeout of 70 seconds means that watch requests initiated by KCM will be reconnected exactly every 70 seconds.

With what's available today we could have two clients, one for informers without a timeout and the second one with shore timeout for all other requests. However, this behaviour seems non-intuitive thus we started exploring various ways of improving it in #101022

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:


@k8s-ci-robot k8s-ci-robot added release-note-none Denotes a PR that doesn't merit a release note. kind/bug Categorizes issue or PR as related to a bug. size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. do-not-merge/needs-sig Indicates an issue or PR lacks a `sig/foo` label and requires one. needs-triage Indicates an issue or PR lacks a `triage/foo` label and requires one. needs-priority Indicates a PR lacks a `priority/foo` label and requires one. labels Apr 14, 2021
@p0lyn0mial
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/assing @soltysh @wojtek-t

@k8s-ci-robot k8s-ci-robot added sig/api-machinery Categorizes an issue or PR as relevant to SIG API Machinery. and removed do-not-merge/needs-sig Indicates an issue or PR lacks a `sig/foo` label and requires one. labels Apr 14, 2021
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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 Apr 14, 2021
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: p0lyn0mial, wojtek-t

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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 Apr 14, 2021
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/retest

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/retest
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@k8s-ci-robot k8s-ci-robot merged commit 1c1527f into kubernetes:master Apr 14, 2021
@k8s-ci-robot k8s-ci-robot added this to the v1.22 milestone Apr 14, 2021
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/triage accepted

@k8s-ci-robot k8s-ci-robot added triage/accepted Indicates an issue or PR is ready to be actively worked on. and removed needs-triage Indicates an issue or PR lacks a `triage/foo` label and requires one. labels Apr 15, 2021
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5 participants