That's interesting. Yes, I don't need native libraries. The problem I'm having is that after I run job.waitForCompletion(..), The job runs a mapper that is something other than GraphMapper. It doesn't complain that a Mapper isn't defined or anything. It runs something else. As I mentioned below, the map-class doesn't appear to be defined.
On 2/7/12 7:50 PM, "Jakob Homan" <jgho...@gmail.com> wrote: >That's not necessarily a bad thing. Hadoop (not Giraph) has native >code library it can use for improved performance. You'll see this >message when running on a cluster that's not been deployed to use the >native libraries. If I follow what you wrote, most likely your work >project cluster is so configured. Unless you actively expect to have >the native libraries loaded, I wouldn't be concerned. > > >On Tue, Feb 7, 2012 at 5:46 PM, David Garcia <dgar...@potomacfusion.com> >wrote: >> I am running into a weird error that I haven't seen yet (I suppose I've >> been lucky). I see the following in the logging: >> >> org.apache.hadoop.util.NativeCodeLoader: Unable to load native-hadoop >> library for your platform... using builtin-java classes where applicable >> >> >> In the job definition, the property "mapreduce.map.class" is not even >> defined. For Giraph, this is usually set to >> "mapreduce.map.class=org.apache.giraph.graph.GraphMapper" >> >> I'm building my project with hadoop 0.20.204. >> >> When I build the GiraphProject myself (and run my own tests with the >> projects dependencies), I have no problems. The main difference is that >> I'm using a Giraph dependency in my work project. All input is welcome. >> Thx!! >> >> -David >>
