Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
 Search Hadoop and all its subprojects:

Switch to Threaded View
MapReduce >> mail # user >> sym Links in hadoop


Copy link to this message
-
Re: sym Links in hadoop
Visioner-

I hope it is not heresy to mention here, but I believe the MapR
implementation of Hadoop supports symlink via NFS.

-Terry

On 10/08/2012 10:20 AM, Visioner Sadak wrote:
> thanks dave its in hdfs only....any other methods of creating a symlink
>
> On Mon, Oct 8, 2012 at 7:00 PM, Dave Beech <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
>     Hi,
>     The FileUtil.symlink command does nothing more than call the unix "ln"
>     command, so it has no knowledge of how to work with Hadoop archive
>     files, only plain files and directories.
>     Is your archive on local disk, or in HDFS?
>     Cheers,
>     Dave
>
>     On 8 October 2012 13:43, Visioner Sadak <[EMAIL PROTECTED]
>     <mailto:[EMAIL PROTECTED]>> wrote:
>     > I tried using FileUtil class for creating a symlink within hadoop
>     actually i
>     > want to create a symlink for my har directory so my code looks like
>     >
>     > FileUtil.symLink("/user2/","har:///user/5oct2012.har")
>     >
>     > but getting error like this
>     >
>     > org.apache.hadoop.fs.FileUtil
>     >  - Command 'ln -s /user2/ har://user/5oct2012.har/' failed 1 with: ln:
>     > target `har:///user/5oct2012.har/' is not a directory: No such file or
>     > directory
>     >
>     >
>     >
>     >
>     > On Mon, Oct 8, 2012 at 12:13 PM, Visioner Sadak
>     <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
>     > wrote:
>     >>
>     >> Hello,
>     >>
>     >>           can we create symlinks within hadoop is ther any shell
>     commands
>     >> or can we do it thru java....
>     >
>     >
>
>

--
Terry Healy / [EMAIL PROTECTED]
Cyber Security Operations
Brookhaven National Laboratory
Building 515, Upton N.Y. 11973
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB