[HADOOP-10410] Support ioprio_set in NativeIO

• Type: New Feature
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.4.0, 3.0.0-alpha1
• Component/s: native
• Labels: BB2015-05-TBR
• Assignee: Liang Xie
• Reporter: Liang Xie
• Created: 18/Mar/14 07:09
• Updated: 12/May/16 18:22

Description

It would be better to HBase application if HDFS layer provide a fine-grained IO request priority. Most of modern kernel should support ioprio_set system call now.