[JENKINS-2723] Port conflict despite unique port assignment

Steps to reproduce :

1. Selected "Allow Unique TCP port allocation"

2. Created Hudson variables for TCP ports

3. Used Hudson variables in execution script

4. Ports are dynamically assigned by Hudson.

5. Still getting port conflict in some runs .

Seems to be an intermittent issue but it is still affecting the builds .

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Originally reported by sb110099, imported from: Port conflict despite unique port assignment

• assignee: ramapulavarthi
  
• status: Open
  
• priority: Critical
  
• component(s): port-allocator-plugin
  
• resolution: Unresolved
  
• votes: 6
  
• watchers: 6
  
• imported: 20251216-225446
  

Raw content of original issue

Steps to reproduce :


1. Selected "Allow Unique TCP port allocation"

2. Created Hudson variables for TCP ports

3. Used Hudson variables in execution script

4. Ports are dynamically assigned by Hudson.

5. Still getting port conflict in some runs .


Seems to be an intermittent issue but it is still affecting the builds .

• environment: Platform: All, OS: All