[WHIRR-282] Set number of Hadoop slots based on hardware

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.5.0
• Component/s: service/hadoop
• Assignee: Thomas White
• Reporter: Thomas White
• Created: 13/Apr/11 23:16
• Updated: 14/Apr/11 21:20
• Resolved: 14/Apr/11 21:18

Description

We can use the jclouds node metadata to find out the number of cores per node, and use it to set the mapred.tasktracker.

{map,reduce}

.tasks.maximum properties.

Issue Links

• relates to: WHIRR-229 dynamically calculate hardware requirements