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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8314) Move HdfsServerConstants#IO_FILE_BUFFER_SIZE and SMALL_BUFFER_SIZE to the users
Date Wed, 06 May 2015 16:49:04 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14530869#comment-14530869
] 

Hudson commented on HDFS-8314:
------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk #2135 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2135/])
HDFS-8314. Move HdfsServerConstants#IO_FILE_BUFFER_SIZE and SMALL_BUFFER_SIZE to the users.
Contributed by Li Lu. (wheat9: rev 4da8490b512a33a255ed27309860859388d7c168)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSUtil.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/namenode/TransferFsImage.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DataStreamer.java
* 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/datanode/BlockMetadataHeader.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockReceiver.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.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/common/HdfsServerConstants.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockSender.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/DFSTestUtil.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/datanode/DataXceiver.java


> Move HdfsServerConstants#IO_FILE_BUFFER_SIZE and SMALL_BUFFER_SIZE to the users
> -------------------------------------------------------------------------------
>
>                 Key: HDFS-8314
>                 URL: https://issues.apache.org/jira/browse/HDFS-8314
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Haohui Mai
>            Assignee: Li Lu
>             Fix For: 2.8.0
>
>         Attachments: HDFS-8314-trunk.001.patch, HDFS-8314-trunk.002.patch, HDFS-8314-trunk.003.patch,
HDFS-8314-trunk.004.patch
>
>
> Currently HdfsServerConstants reads the configuration and to set the value of IO_FILE_BUFFER_SIZE
and SMALL_BUFFER_SIZE, thus they are configurable instead of being constants.
> This jira proposes to move these two variables to the users in the upper-level so that
HdfsServerConstants only stores constant values.



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