[UIMA-3614] DUCC RM should reap non-preemptable shares for services, jobs, and AP

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.1.0-Ducc
• Fix Version/s: 1.1.0-Ducc
• Component/s: DUCC
• Assignee: Jim Challenger
• Reporter: Jim Challenger
• Created: 13/Feb/14 18:32
• Updated: 05/May/14 17:52
• Resolved: 05/May/14 17:52

Description

Original DUCC design said that non-preemptable shares could never be deallocated by RM unless the owner canceled the work running in those shares, even if the underlying system fails.

Since then, job-jobs, services, and "managed reservations" have been defined to run in non-preemptable shares.

If RM detects node failure it should now include non-preemptable shares in the reaper, as long as the shares are occupied by job-jobs, services, and MRs. "Unmanaged"-reservations continue to remain allocated forever, or until the owner releases them.