Re: error starting MRAppmaster caused by java.lang.ClassNotFoundException: org.apache.hadoop.conf.Configuration$DeprecationDelta

[Ritesh Kumar Singh]

I'm not sure about the exact issue, but you have hadoop version 2.2
installed, and you are trying to install giraph with Hadoop version 2.6 as
you have stated in this line :
mvn -Phadoop_yarn -Dhadoop.version=2.6.0

Maybe try changing that first?