James, Which version of Hadoop are you using? HADOOP_CLASSPATH is specifically intended to mean additional jars which are added to the list of jars Hadoop itself adds to the classpath.
What's the exact command-line you're trying? - Aaron On Fri, May 28, 2010 at 3:12 PM, James Hammerton < james.hammer...@mendeley.com> wrote: > Thanks. > > I've found that setting the classpath as you suggested gets the command to > work at the expense of the "hadoop jar" command I use to submit jobs no > longer finding the hadoop libraries! > > Even adding the directories onto the classpath along with the .jar file > does not fix this. I've worked around it by running the command for viewing > sequence files from within a script that sets the classpath. Any ideas how > to get both the .jar file and the hadoop libraries into the classpath > together so that both job submission and the other commands work? > > Regards, > > James > > > On Thu, May 27, 2010 at 7:38 PM, Aaron Kimball <aa...@cloudera.com> wrote: > >> Put your jar on Hadoop's classpath: >> >> $ HADOOP_CLASSPATH=path/to/shortdocwritables.jar hadoop fs -text bla >> bla.... >> >> - Aaron >> >> >> On Thu, May 27, 2010 at 11:07 AM, James Hammerton < >> james.hammer...@mendeley.com> wrote: >> >>> Hi, >>> >>> I tried using the "hadoop fs -text" command to read a sequence file >>> generated by a map reduce job and got the following error: >>> >>> text: java.io.IOException: WritableName can't load class: >>> com.mendeley.clusterer.title.ShortDocWritables >>> >>> The ShortDocWritables is a Writable I created myself and the sequencefile >>> contains these objects. How do I tell this command where to find the class? >>> >>> There was no trouble at all running the map reduce job that produced the >>> file. >>> >>> James >>> >>> -- >>> James Hammerton | Senior Data Mining Engineer >>> www.mendeley.com/profiles/james-hammerton >>> >>> Mendeley Limited | London, UK | www.mendeley.com >>> Registered in England and Wales | Company Number 6419015 >>> >>> >>> >>> >> > > > -- > James Hammerton | Senior Data Mining Engineer > www.mendeley.com/profiles/james-hammerton > > Mendeley Limited | London, UK | www.mendeley.com > Registered in England and Wales | Company Number 6419015 > > > >
