Class Summary |
EdgeIngressCombiner<KeyType extends IngressKeyType,ValType extends IngressValueType> |
Combines intermediate IngressValues. |
EdgeIngressMapper<VidType extends WritableComparable<VidType>,VertexData extends Writable,EdgeData extends Writable,KeyType extends IngressKeyType<VidType>,ValueType extends IngressValueType<VidType,VertexData,EdgeData>> |
This mapper class maps edge and vertex list into intermediate key, value
pairs. |
EdgeIngressMR |
The MapRedue class takes from input directory a list of edges and vertices,
and output 2 parts: partitioned graphs and a list of distributed vertex
records. |
EdgeIngressReducer<VidType extends WritableComparable<VidType>,VertexData extends Writable,EdgeData extends Writable,KeyType extends IngressKeyType<VidType>,ValueType extends IngressValueType<VidType,VertexData,EdgeData>> |
This reduce task has 2 subroutines: edges are reduced into a Graph
and vertices are reduced into VertexRecord . |