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https://issues.apache.org/jira/browse/HDFS-6969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14140512#comment-14140512
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Hudson commented on HDFS-6969:
------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk #1901 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1901/])
HDFS-6969. Archival Storage: INode#getStoragePolicyID should always return the
latest storage policy. Contributed by Jing Zhao. (jing9: rev
3e2a0b5446bce51871ab3e1262a0ac6bd365e94f)
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/BlockStoragePolicy.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestBlockStoragePolicy.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImageFormatPBINode.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INode.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeDirectory.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeAttributes.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeReference.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeMap.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeSymlink.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeDirectoryAttributes.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeFileAttributes.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeFile.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
> Archival Storage: INode#getStoragePolicyID should always return the latest
> storage policy
> -----------------------------------------------------------------------------------------
>
> Key: HDFS-6969
> URL: https://issues.apache.org/jira/browse/HDFS-6969
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: balancer, namenode
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Attachments: HDFS-6969.000.patch, HDFS-6969.001.patch,
> HDFS-6969.002.patch
>
>
> In general, every file should only provide exact one storage policy for the
> Mover, no matter its snapshot states. Suppose a file /foo/bar, and it is
> contained in snapshots s1 and s2 of the root. If /foo/bar,
> /.snapshot/s1/foo/bar and /.snapshot/s2/foo/bar have different storage
> policies, when running Mover, we have to select one of the storage policies,
> among which the latest one should be the best. And if /foo/bar is deleted, we
> should still use its storage policy before the deletion, since the file
> deletion should not trigger data migration.
> Thus maybe what we can do is:
> 1. For a file with policy directly specified on it, alway follow the latest
> 2. Otherwise follow its latest parental path to identify its storage policy
> (simply following the parent link)
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