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 >