[PROTON-2347] Reactor leaks file handles when an IO Exception is encountered

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: proton-j-0.33.10
• Fix Version/s: proton-j-0.34.0
• Component/s: proton-j
• Environment: Windows 10 desktop
• Assignee: Robbie Gemmell
• Reporter: Tim Taylor
• Created: 17/Mar/21 18:51
• Updated: 02/Sep/22 16:30
• Resolved: 24/Aug/22 16:00

Description

When I try to open a connection using proton-j while my machine doesn't have internet access, I see that proton-j leaks file descriptors. Attached is the sample I wrote that repro's this issue.  I'm looking either for guidance on how to handle IOExceptions in the onTransportError callback, or for a confirmation that what I'm doing to handle them is correct, and that there is a bug in proton-j around this scenario.

 

If you need help viewing the file descriptor count growing over time, the process explorer tool is what I've been using. Running the sample in a loop will make this leak more obvious, but it isn't required to leak the file descriptors. This same bug seems to happen in Linux and MacOS as well.

Issue Links

• is duplicated by: PROTON-2348 Proton-j leaks file descriptors when connection fails to open
• is duplicated by: PROTON-2349 [Proton-j] Reactor leaks file descriptors when IOException is encountered