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Maniphest T419149

HAProxy 3.0 fires http-after-response rules twice on 500s resulting on KC session state
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Description

We've observed HAProxy firing http-after-response rules twice for internal 500 responses, this has some naugthy side-effects like double reporting twice some fields on x-analytics like ja3n

Details

Related Changes in Gerrit:
SubjectRepoBranchLines +/-
haproxy: Fix syntax erroroperations/puppetproduction+1 -1
haproxy: Avoid logging ja3n/ja4h/res_ more than onceoperations/puppetproduction+3 -3
Customize query in gerrit

Event Timeline

Vgutierrez created this task.Mar 5 2026, 5:10 PM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptMar 5 2026, 5:10 PM
Vgutierrez triaged this task as High priority.Mar 5 2026, 5:10 PM
Vgutierrez updated the task description. (Show Details)
gerritbot added a comment.Mar 5 2026, 5:15 PM

Change #1248537 had a related patch set uploaded (by Vgutierrez; author: Vgutierrez):

[operations/puppet@production] haproxy: Avoid logging ja3n/ja4h/res_ more than once

https://gerrit.wikimedia.org/r/1248537

gerritbot added a project: Patch-For-Review.Mar 5 2026, 5:15 PM
BCornwall subscribed.Mar 5 2026, 5:24 PM
gerritbot added a comment.Mar 5 2026, 5:42 PM

Change #1248537 merged by Vgutierrez:

[operations/puppet@production] haproxy: Avoid logging ja3n/ja4h/res_ more than once

https://gerrit.wikimedia.org/r/1248537

gerritbot added a comment.Mar 5 2026, 5:44 PM

Change #1248541 had a related patch set uploaded (by Vgutierrez; author: Vgutierrez):

[operations/puppet@production] haproxy: Fix syntax error

https://gerrit.wikimedia.org/r/1248541

gerritbot added a comment.Mar 5 2026, 5:46 PM

Change #1248541 merged by Vgutierrez:

[operations/puppet@production] haproxy: Fix syntax error

https://gerrit.wikimedia.org/r/1248541

Vgutierrez closed this task as Resolved.Mar 5 2026, 6:12 PM
Maintenance_bot removed a project: Patch-For-Review.Mar 5 2026, 6:31 PM
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