[MAPREDUCE-3787] [Gridmix] Improve STRESS mode

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha
• Fix Version/s: 2.1.0-beta
• Component/s: contrib/gridmix
• Labels: gridmix stress
• Hadoop Flags: Reviewed

Release Note

JobMonitor can now deploy multiple threads for faster job-status polling. Use 'gridmix.job-monitor.thread-count' to set the number of threads. Stress mode now relies on the updates from the job monitor instead of polling for job status. Failures in job submission now get reported to the statistics module and ultimately reported to the user via summary.

• Tags: gridmix3 stress
• Assignee: Amar Kamat
• Reporter: Amar Kamat
• Created: 02/Feb/12 06:23
• Updated: 10/Mar/15 04:32
• Resolved: 23/Feb/12 11:05

Description

Gridmix STRESS mode can be improved as follows:
1. The sleep time in JobMonitor can be reduced and/or made configurable
2. Map and reduce load calculation in StressJobFactory can be done in one loop
3. Updating the overload status from the job submitter thread (inline)
4. Optimizations to avoid un-necessary progress check (which inturn would result into delay)

Issue Links

• relates to: MAPREDUCE-3769 [Gridmix] Improve the way job monitor maintains running jobs