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Chen He commented on HADOOP-9565: --------------------------------- Thank you for the explanation, [~ste...@apache.org]. You are right, the ._COPYING_ is added by CLI (distcp refers to this also) and hardcoded there. IMHO, it may be more flexible if we can choose to not add ._COPYING_ by setting a parameter like "OBJECTSTORE_NO_RENAME_IN_COPY". > Add a Blobstore interface to add to blobstore FileSystems > --------------------------------------------------------- > > Key: HADOOP-9565 > URL: https://issues.apache.org/jira/browse/HADOOP-9565 > Project: Hadoop Common > Issue Type: Improvement > Components: fs, fs/s3, fs/swift > Affects Versions: 2.6.0 > Reporter: Steve Loughran > Assignee: Steve Loughran > Labels: BB2015-05-TBR > Attachments: HADOOP-9565-001.patch, HADOOP-9565-002.patch, > HADOOP-9565-003.patch > > > We can make the fact that some {{FileSystem}} implementations are really > blobstores, with different atomicity and consistency guarantees, by adding a > {{Blobstore}} interface to add to them. > This could also be a place to add a {{Copy(Path,Path)}} method, assuming that > all blobstores implement at server-side copy operation as a substitute for > rename. -- This message was sent by Atlassian JIRA (v6.3.4#6332)