[IGNITE-13536] .NET: Child processes become zombies when persistence is used with direct-io on Linux

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 2.8
• Fix Version/s: 2.10, 2.9.1
• Component/s: platforms
• Labels: .NET 2.9.1-rc
• Assignee: Pavel Tupitsyn
• Reporter: Pavel Tupitsyn
• Created: 06/Oct/20 19:36
• Updated: 03/Nov/20 15:08
• Resolved: 12/Oct/20 12:51

Description

After using Ignite with direct-io optional module and persistence enabled, user code hangs when trying to kill a child process and wait for it to exit using base class library classes (Process).

See attached reproducer:

• Copy .cs and .csproj files to a folder
• dotnet run

The program hangs forever on the last line (process.WaitForExit()), and the child process becomes a zombie (defunct).

• Similar Java program (see attachments) does not reproduce the issue

Issue Links

• is related to: IGNITE-13551 .NET: Enable ClientServerCompatibilityTest on Linux
• links to: GitHub Pull Request #8348