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From "Craig Macdonald (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4) tool to mount dfs on linux
Date Sat, 03 May 2008 23:18:55 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594038#action_12594038

Craig Macdonald commented on HADOOP-4:

Comments on the latest patch:

 *  +1 It compiles for me from ant

 * -1 but only after I build libhdfs or alter fuse-dfs/src/Makefile.am to refer to $(HADOOP_HOME)/libhdfs
and not $(HADOOP_HOME)/build/libhdfs

 * -1fuse_dfs_wrapper.sh : LD_LIBRARY_PATH should be set after JAVA_HOME; LD_LIBRARY_PATH
should contain $HADOOP_HOME/libhdfs

 * -1 I think that there should be package target in fuse-dfs/build.xml that copies fuse-dfs
stuff into $HADOOP_HOME/contrib/fuse-dfs - this to be the final place that fuse-dfs can always
be found at in a hadoop installation

 * Note: when I run my fuse-dfs mount as root, I have to turn dfs.permissions to off. root
doesnt have any permissions in our dfs setup, so hence everything gets permission denied.
In future, we should alter libhdfs such that it has a "super-user API" - i.e. if I access
file X as user Y, am I permitted to access it? See also HADOOP-3264, which deals with supporting
permissions in libhdfs

> tool to mount dfs on linux
> --------------------------
>                 Key: HADOOP-4
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: fs
>         Environment: OSs that support FUSE. Includes Linux, MacOSx, OpenSolaris... http://fuse.sourceforge.net/wiki/index.php/OperatingSystems
>            Reporter: John Xing
>         Attachments: fuse-dfs.tar.gz, fuse-dfs.tar.gz, fuse-dfs.tar.gz, fuse-dfs.tar.gz,
fuse-dfs.tar.gz, fuse-hadoop-0.1.0_fuse-j.2.2.3_hadoop.0.5.0.tar.gz, fuse-hadoop-0.1.0_fuse-j.2.4_hadoop.0.5.0.tar.gz,
fuse-hadoop-0.1.1.tar.gz, fuse-j-hadoopfs-03.tar.gz, fuse_dfs.c, fuse_dfs.c, fuse_dfs.c, fuse_dfs.c,
fuse_dfs.c, fuse_dfs.sh, fuse_dfs.tar.gz, HADOOP-4.patch, HADOOP-4.patch, HADOOP-4.patch,
Makefile, patch.txt, patch.txt, patch2.txt, patch3.txt, patch4.txt, patch4.txt, patch4.txt,
patch5.txt, patch6.txt
> tool to mount dfs on Unix or any OS that supports FUSE

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