[HADOOP-18373] IOStatisticsContext tuning

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.3.5
• Fix Version/s: 3.3.5
• Component/s: fs/s3, test
• Labels: pull-request-available
• Assignee: Viraj Jasani
• Reporter: Steve Loughran
• Created: 27/Jul/22 13:34
• Updated: 12/Aug/22 19:43
• Resolved: 08/Aug/22 13:38

Description

Tuning of the IOStatisticsContext code

change property name to fs.iostatistics....

there are other fs.iostatistics options, the new one needs consistent naming

enable in hadoop-aws

edit core-site.xml in hadoop-aws/test/resources to always collect context iOStatistics

This helps qualify the code

	  <property>
	    <name>fs.thread.level.iostatistics.enabled</name>
	    <value>true</value>
	  </property>

IOStatisticsContext to add add static probe to see if it is enabled.

lets apps know not to bother collecting/reporting

Issue Links

• depends upon: HADOOP-17461 Add thread-level IOStatistics Context
• relates to: HADOOP-17461 Add thread-level IOStatistics Context
• links to: GitHub Pull Request #4705