[UIMA-5157] DUCC shutdown sequence leaves agents running

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.2.0-Ducc
• Component/s: DUCC
• Assignee: Jaroslaw Cwiklik
• Reporter: Eddie Epstein
• Created: 24/Oct/16 19:47
• Updated: 25/Jan/17 15:40
• Resolved: 25/Jan/17 15:40

Description

A full DUCC shutdown (./stop_ducc -a) can leave DUCC agents as well as user processes still running after shutdown completes.

The problems are caused because 1) a DUCC agent will hang trying to send inventory update report if the DUCC broker has been terminated, and 2) agents kill user processes sequentially which increases the likelihood that the broker will be terminated before the agent is finished cleaning up.