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Backport 1/1 commits from #160273 on behalf of @msbutler.


On pre 26.1 versions by default, pgwire retries opening a connection tens of thousands of times, which could cause overload in the c2c/mixedversion roachtest. Now that sql.pgwire.max_repeated_error_count has been backported to 25.2+, we can deflake the roachtest by setting the max error count to 256.

Informs #150401

Release note: none


Release justification:

On pre 26.1 versions by default, pgwire retries opening a connection tens of
thousands of times, which could cause overload in the c2c/mixedversion
roachtest. Now that `sql.pgwire.max_repeated_error_count` has been backported
to 25.2+, we can deflake the roachtest by setting the max error count to 256.

Informs cockroachdb#150401

Release note: none
@msbutler msbutler force-pushed the blathers/backport-release-26.1-160273 branch from 29d1b2d to 86506a7 Compare December 29, 2025 21:31
@blathers-crl blathers-crl bot added blathers-backport This is a backport that Blathers created automatically. O-robot Originated from a bot. labels Dec 29, 2025
@blathers-crl blathers-crl bot requested a review from kev-cao December 29, 2025 21:31
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blathers-crl bot commented Dec 29, 2025

Thanks for opening a backport.

Before merging, please confirm that the change does not break backwards compatibility and otherwise complies with the backport policy. Include a brief release justification in the PR description explaining why the backport is appropriate. All backports must be reviewed by the TL for the owning area. While the stricter LTS policy does not yet apply, please exercise judgment and consider gating non-critical changes behind a disabled-by-default feature flag when appropriate.

@blathers-crl blathers-crl bot added backport Label PR's that are backports to older release branches T-disaster-recovery labels Dec 29, 2025
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@blathers-crl blathers-crl bot added the backport-test-only Used to denote the backport has only non-production changes label Dec 29, 2025
@github-actions github-actions bot merged commit 70a14c3 into cockroachdb:release-26.1 Dec 30, 2025
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@github-actions github-actions bot deleted the blathers/backport-release-26.1-160273 branch December 30, 2025 22:02
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backport Label PR's that are backports to older release branches backport-test-only Used to denote the backport has only non-production changes blathers-backport This is a backport that Blathers created automatically. O-robot Originated from a bot. T-disaster-recovery target-release-26.1.0

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2 participants