[ https://issues.apache.org/jira/browse/HADOOP-9565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14038930#comment-14038930 ]
Steve Loughran commented on HADOOP-9565: ---------------------------------------- Thomas: good points, I'll follow up in more detail. in HDFS-9361 I have tried to specify how HDFS behaves, including what is explicity atomic. -what is harder is knowing how applications expect HDFS to behave... > 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: Sub-task > Components: fs > Affects Versions: 2.0.4-alpha > Reporter: Steve Loughran > Priority: Minor > > 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 (v6.2#6252)