[IGNITE-8881] Semaphore hangs on network partitioning

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.4
• Component/s: data structures
• Assignee: Unassigned
• Reporter: Mo
• Created: 26/Jun/18 21:58
• Updated: 26/Jun/18 22:02

Description

Scenario: Three servers (s1,s2,s3) two clients (c1,c2).

A semaphore with one permit is created. 

Config: 

1. Release acquired permits if the node that owned them left topology: set to false

2.  TCP discovery mode: on

steps: 

1. c2 acquires the permit.
2. Network failure happens, isolating c2 from the rest of nodes for a period of time.
3. Network heals.
4. c2 tries to release the permit but hangs.