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https://issues.apache.org/jira/browse/HDFS-15028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16990237#comment-16990237
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Hudson commented on HDFS-15028:
-------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #17736 (See 
[https://builds.apache.org/job/Hadoop-trunk-Commit/17736/])
HDFS-15028. Keep the capacity of volume and reduce a system call. (iwasakims: 
rev 11cd5b6e39adbf159891852f3482aebdde5459fb)
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestFsVolumeList.java
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsVolumeImpl.java
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java


> Keep the capacity of volume and reduce a system call
> ----------------------------------------------------
>
>                 Key: HDFS-15028
>                 URL: https://issues.apache.org/jira/browse/HDFS-15028
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>            Reporter: Yang Yun
>            Assignee: Yang Yun
>            Priority: Minor
>         Attachments: HDFS-15028.patch, HDFS-15028.patch, HDFS-15028.patch, 
> HDFS-15028.patch, HDFS-15028.patch
>
>
> The local volume is not changed. so keep the first value of the capacity and 
> reuse for each heartbeat.



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