[TOREE-437] Cell interrupts do not occur in background

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.2.0
• Fix Version/s: 0.2.0
• Component/s: Kernel
• Labels: usability
• Assignee: Kevin Bates
• Reporter: Kevin Bates
• Created: 07/Sep/17 22:51
• Updated: 13/Sep/17 14:32
• Resolved: 13/Sep/17 14:32

Description

Whenever Toree is run in the background - either directly from the shell or indirectly from the Jupyter stack that is started in the background - cell interrupts (via ctrl-C or SIGINT from parent) are not received - resulting in the inability to interrupt long-running cells.

This can be most simply demonstrated by invoking run.sh into the background (e.g., run.sh &) then issue ctrl-C (or `kill -2 <pid>`) to no avail.

This is related to TOREE-33 but only pertains to cell interrupt functionality since complete life-cycle management is assumed by the parent for the shutdown (double ctrl-C) scenario.

Issue Links

• links to: GitHub Pull Request #140