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Fix divide by zero when shutting down Typha if it has no clients. #7575

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merged 1 commit into from
Apr 21, 2023

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@fasaxc fasaxc commented Apr 20, 2023

Description

Exit cleanly instead of panicking.

Related issues/PRs

Fixes the panic seen in #7553 (but the overall issue may be something else)

Todos

  • Tests
  • Documentation
  • Release note

Release Note

Fix a divide-by-zero panic in Typha if it received a SIGTERM when it had no active connections.  Since Typha exits in either case, the impact was limited to a scary panic log.

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Make sure that this PR has the correct labels and milestone set.

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Every PR needs one release-note-* label.

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  • cherry-pick-candidate: This PR should be cherry-picked to an earlier release. For bug fixes only.
  • needs-operator-pr: This PR is related to install and requires a corresponding change to the operator.

@fasaxc fasaxc requested a review from a team as a code owner April 20, 2023 13:15
@marvin-tigera marvin-tigera added this to the Calico v3.26.0 milestone Apr 20, 2023
@marvin-tigera marvin-tigera added release-note-required Change has user-facing impact (no matter how small) docs-pr-required Change is not yet documented labels Apr 20, 2023
@fasaxc fasaxc added docs-not-required Docs not required for this change and removed docs-pr-required Change is not yet documented labels Apr 20, 2023
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fasaxc commented Apr 20, 2023

/merge-when-ready

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OK, I will merge the pull request when it's ready, leave the commits as is when I merge it, and leave the branch after I've merged it.

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mgleung commented Apr 21, 2023

@fasaxc since we cut release branches, I think we'll need a cherry-pick of this to the release-v3.26 branch

@mgleung mgleung merged commit f6fa3f8 into projectcalico:master Apr 21, 2023
@fasaxc fasaxc mentioned this pull request Apr 24, 2023
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4 participants