[ 
https://issues.apache.org/jira/browse/HDFS-2832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13846131#comment-13846131
 ] 

Hudson commented on HDFS-2832:
------------------------------

SUCCESS: Integrated in Hadoop-trunk-Commit #4871 (See 
[https://builds.apache.org/job/Hadoop-trunk-Commit/4871/])
svn merge --reintegrate 
https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-2832 for merging 
Heterogeneous Storage feature branch (arp: 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1550363)
* /hadoop/common/trunk
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/docs
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/core
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs
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/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/FsDatasetSpi.java
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* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/native
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* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/hdfs.proto
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/datanode
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs
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* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/hdfs
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/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestListCorruptFileBlocks.java
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/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNamenodeRetryCache.java
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/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestPipelinesFailover.java
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/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestRetryCacheWithHA.java
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/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/resources/editsStored.xml
* /hadoop/common/trunk/hadoop-mapreduce-project
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/conf
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/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/resources/mapred-default.xml


> Enable support for heterogeneous storages in HDFS
> -------------------------------------------------
>
>                 Key: HDFS-2832
>                 URL: https://issues.apache.org/jira/browse/HDFS-2832
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>    Affects Versions: 0.24.0
>            Reporter: Suresh Srinivas
>            Assignee: Suresh Srinivas
>         Attachments: 20130813-HeterogeneousStorage.pdf, 
> 20131125-HeterogeneousStorage-TestPlan.pdf, 
> 20131125-HeterogeneousStorage.pdf, 
> 20131202-HeterogeneousStorage-TestPlan.pdf, 
> 20131203-HeterogeneousStorage-TestPlan.pdf, H2832_20131107.patch, 
> editsStored, h2832_20131023.patch, h2832_20131023b.patch, 
> h2832_20131025.patch, h2832_20131028.patch, h2832_20131028b.patch, 
> h2832_20131029.patch, h2832_20131103.patch, h2832_20131104.patch, 
> h2832_20131105.patch, h2832_20131107b.patch, h2832_20131108.patch, 
> h2832_20131110.patch, h2832_20131110b.patch, h2832_20131111.patch, 
> h2832_20131112.patch, h2832_20131112b.patch, h2832_20131114.patch, 
> h2832_20131118.patch, h2832_20131119.patch, h2832_20131119b.patch, 
> h2832_20131121.patch, h2832_20131122.patch, h2832_20131122b.patch, 
> h2832_20131123.patch, h2832_20131124.patch, h2832_20131202.patch, 
> h2832_20131203.patch, h2832_20131210.patch, h2832_20131211.patch, 
> h2832_20131211b.patch
>
>
> HDFS currently supports configuration where storages are a list of 
> directories. Typically each of these directories correspond to a volume with 
> its own file system. All these directories are homogeneous and therefore 
> identified as a single storage at the namenode. I propose, change to the 
> current model where Datanode * is a * storage, to Datanode * is a collection 
> * of strorages. 



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