[HADOOP-16407] Improve isolation of FS instances in S3A committer tests

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 3.3.0
• Component/s: fs/s3, test
• Assignee: Unassigned
• Reporter: Steve Loughran
• Created: 02/Jul/19 17:33
• Updated: 03/Jun/22 13:44
• Resolved: 03/Jun/22 13:44

Description

Filesystem recycling stops the ITest*Committer tests working all the time, if they pick up an existing FS which has a consistent instance.

We can do better here

Options

• Base AbstractCommitITest creates both consistent and inconsistent filesystems, does not destroy either, ever, subclasses choose which to bond to
• test setup to force disableFilesystemCaching(conf) in config setup; tear down to probe the FS for this option, and if true, close the FS