[UIMA-5245] UIMA-DUCC: refactor agent to fetch child process metrics from cgroups

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.2.0-Ducc
• Component/s: DUCC
• Assignee: Jaroslaw Cwiklik
• Reporter: Jaroslaw Cwiklik
• Created: 11/Jan/17 20:47
• Updated: 31/Jan/17 17:47
• Resolved: 31/Jan/17 17:47

Description

Currently ducc gets swap, rss, major faults, and cpu usage for each child process from variety of sources including ps, external scripts, cgroups. All needed metrics are available in cgroups. The rss, swap and pgin can be fetched from memory.stat file.

If cgroups are not ON, the values for the above metrics will be set to -1 and shown as N/A to the user in the duccmon.