[DISPATCH-1069] memory grows on a long-lived connection when links are opened and closed

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.2.0
• Fix Version/s: 1.3.0
• Component/s: Container
• Assignee: Alan Conway
• Reporter: Alan Conway
• Created: 10/Jul/18 22:34
• Updated: 10/Aug/18 20:32
• Resolved: 10/Jul/18 23:46

Description

The attached reproducers link-leak.c and link-leak.py open and close links repeatedly on the same connection. This causes the routers memory use to grow.

Massif shows that the memory is due to pn_link_t and related objects. PROTON-905 describes an old bug where link information is leaked but experiments show this is not happening with modern proton.

I suspect the growth is due to dispatch sometimes failing to call pn_link_free() but investigation is still ongoing.

Issue Links

• is related to: PROTON-905 Long-lived connections leak sessions and links
• links to: GitHub Pull Request #344