[JIRA] [gerrit] (JENKINS-24445) Retriggering builds via the "Manual Trigger" feature of the Gerrit Trigger Plugin causes wrong verification

Thu, 28 Aug 2014 21:24:33 -0700

rin_ne commented on Bug JENKINS-24445

This is not critical issue since only caused in rare condition. But it would be critical if once happens.

From code, It is certain that gerrit-trigger runs under the below assumptions:

  1. A patchset-created event for a patchset in a change is generated only once
  2. Only one build is scheduled from a job triggered by a event.

The event instance generated by Gerrit event stream is different with the one generated by manual trigger. But object comparison by equals() is true. This fact breaks assumption #1.

If manual trigger happens while triggered job has running build triggered by Gerrit stream event, a job has 2 builds generated by the same event. This breaks assumption #2.

So when manual trigger happens, plugin behavior is already unstable. Unfortunately, result would be undefined.

Perhaps this is design issue. So this cannot be fixed easily with no plan.
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