[HADOOP-17492] abfs listLocatedStatus to support incremental/async page fetching

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Fix Version/s: 3.3.5
• Component/s: fs/azure
• Assignee: Steve Loughran
• Reporter: Steve Loughran
• Created: 25/Jan/21 10:39
• Updated: 07/Jan/22 14:21
• Resolved: 07/Jan/22 14:21

Description

listLocatedStatus uses listStatus[] then serves up as an iterator.

Once HADOOP-17475 is in, it can do the list incrementally with async prefetch.

Although not used much in the Hadoop codebase, the LocationStatusFetcher class is used during query planning across applications

Issue Links

• is part of: HADOOP-17979 Interface EtagSource to allow FileStatus subclasses to provide etags