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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5364) Add OpenFileCtx cache
Date Fri, 08 Nov 2013 13:05:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5364?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13817253#comment-13817253
] 

Hudson commented on HDFS-5364:
------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk #1603 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1603/])
HDFS-5364. Add OpenFileCtx cache. Contributed by Brandon Li (brandonli: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1539834)
* /hadoop/common/trunk/hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/mount/MountdBase.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/Nfs3Base.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/Nfs3Constant.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/request/WRITE3Request.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/oncrpc/RpcProgram.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/Nfs3.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/OpenFileCtx.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/OpenFileCtxCache.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/RpcProgramNfs3.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/WriteManager.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/TestMountd.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/TestOutOfOrderWrite.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/nfs3/TestOpenFileCtxCache.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/nfs3/TestWrites.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt


> Add OpenFileCtx cache
> ---------------------
>
>                 Key: HDFS-5364
>                 URL: https://issues.apache.org/jira/browse/HDFS-5364
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: nfs
>            Reporter: Brandon Li
>            Assignee: Brandon Li
>             Fix For: 2.2.1
>
>         Attachments: HDFS-5364.001.patch, HDFS-5364.002.patch, HDFS-5364.003.patch, HDFS-5364.004.patch,
HDFS-5364.005.patch, HDFS-5364.006.patch, HDFS-5364.007.patch, HDFS-5364.008.patch, HDFS-5364.009.patch
>
>
> NFS gateway can run out of memory when the stream timeout is set to a relatively long
period(e.g., >1 minute) and user uploads thousands of files in parallel.  Each stream DFSClient
creates a DataStreamer thread, and will eventually run out of memory by creating too many
threads.
> NFS gateway should have a OpenFileCtx cache to limit the total opened files. 



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