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https://issues.apache.org/jira/browse/HDFS-7310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14227749#comment-14227749
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Hudson commented on HDFS-7310:
------------------------------

SUCCESS: Integrated in Hadoop-Mapreduce-trunk-Java8 #18 (See 
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/18/])
HDFS-7310. Mover can give first priority to local DN if it has target storage 
type available in local DN. (Vinayakumar B via umamahesh) (umamahesh: rev 
058af60c56207907f2bedf76df4284e86d923e0c)
* 
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestDatanodeDescriptor.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/SimulatedFSDataset.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeStorageInfo.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlocksMap.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/BlockPoolSlice.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/balancer/Dispatcher.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/FsDatasetSpi.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/mover/TestMover.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockInfo.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataXceiver.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestBlockReplacement.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsVolumeImpl.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/RamDiskAsyncLazyPersistService.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
* 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/mover/Mover.java
HDFS-7444. Addendum patch to resolve conflicts between HDFS-7444 and HDFS-7310. 
(wheat9: rev 978736d486a8775bc21d074010f58c28ae0fda41)
* 
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReplicationPolicy.java


> Mover can give first priority to local DN if it has target storage type 
> available in local DN
> ---------------------------------------------------------------------------------------------
>
>                 Key: HDFS-7310
>                 URL: https://issues.apache.org/jira/browse/HDFS-7310
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: balancer & mover
>    Affects Versions: 3.0.0
>            Reporter: Uma Maheswara Rao G
>            Assignee: Vinayakumar B
>             Fix For: 3.0.0, 2.7.0
>
>         Attachments: HDFS-7310-001.patch, HDFS-7310-002.patch, 
> HDFS-7310-003.patch, HDFS-7310-004.patch
>
>
> Currently Mover logic may move blocks to any DN which had target storage 
> type. But if the src DN has target storage type then mover can give highest 
> priority to local DN. If local DN does not contains target storage type, then 
> it can assign to any DN as the current logic does.
>   This is a thought, have not go through the code fully yet.
> Thoughts?



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