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Hudson commented on HDFS-2931: ------------------------------ Integrated in Hadoop-Hdfs-0.23-Commit #524 (See [https://builds.apache.org/job/Hadoop-Hdfs-0.23-Commit/524/]) svn merge -c 1242891 from trunk for HDFS-2931. szetszwo : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1242892 Files : * /hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs * /hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt * /hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java * /hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockVolumeChoosingPolicy.java > Switch the DataNode's BlockVolumeChoosingPolicy to be a private-audience > interface > ---------------------------------------------------------------------------------- > > Key: HDFS-2931 > URL: https://issues.apache.org/jira/browse/HDFS-2931 > Project: Hadoop HDFS > Issue Type: Task > Components: data-node > Affects Versions: 0.23.0 > Reporter: Harsh J > Assignee: Harsh J > Priority: Minor > Labels: api > Fix For: 0.24.0, 0.23.2 > > Attachments: HDFS-2931.patch > > > From Nicholas, at the tail of HDFS-1120: > {quote} > However, if we annotate it as public, all the classes associated with them > should also be annotated as public. Also, whenever we change the interface or > any of the associated classes, it is an incompatible change. > In our case, BlockVolumeChoosingPolicy uses FSVolumeInterface, which is a > part of FSDatasetInterface. In FSDatasetInterface, there are many classes > should not be exposed. One way to solve it is to make FSVolumeInterface > independent of FSDatasetInterface. However, FSVolumeInterface is not yet a > well-designed interface for the public. > For these reasons, it is justified to annotate it as private, the same as > BlockPlacementPolicy. > {quote} > We should switch BlockVolumeChoosingPolicy to for a private audience. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira