Removing FileSystem
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Key: HDFS-765
URL: https://issues.apache.org/jira/browse/HDFS-765
Project: Hadoop HDFS
Issue Type: Task
Reporter: Eli Collins
Here's a jira to track removing FileSystem. There are two high-level tasks:
1. Moving clients in common and mapreduce onto FileContext. I think this is
currently blocked on HADOOP-6356 and HADOOP-6361. Anything else preventing them
from being moved over? Any clients we could move over today?
2. Moving file system implementations onto AbstractFileSystem. Currently Hdfs
and FilterFS (and local and checksum) extend AFS. RawLocalFileSystem uses the
delegator. S3, ftp and others need to be moved over. Don't think there's
anything blocking this stuff.
In the mean time should we mark FileSystem as deprecated? Is 23 a reasonable
time frame for moving everyone off FileSystem? Seems like we want to remove
FileSystem before 1.0.
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