giraph-finding-triangles's Introduction
I) Instalacja girapha i odpalenie exampla w pliku instalacja II) Zliczanie trojkatow: 1. Na wyjsciu wypisuje dla kazdego wierzcholka ilosc trojkątów, w ktorych się znajduje i jednoczesnie jest wierzcholkiem o najmniejszej etykiecie w tym trojkacie, np dla wejscia: Przykład: In: 2 3 1 2 1 3 Out: 1 1 2 0 3 0 Zatem liczba wszystkich trojkatow w grafie to suma po drugiej kolumnie wyjscia. 2. Zakladam ze graf nieskierowany 3. Odpalanie: mvn clean install ${HADOOP_PATH}/bin/hadoop dfs -copyFromLocal input.in /input2 ${HADOOP_PATH}/bin/hadoop jar target/finding-triangles-giraph-1.0-SNAPSHOT-jar-with-dependencies.jar org.apache.giraph.GiraphRunner TrianglesCounter -eif org.apache.giraph.io.formats.IntNullReverseTextEdgeInputFormat -eip /input2 -vof org.apache.giraph.io.formats.IdWithValueTextOutputFormat -op /output2 -w 1 ${HADOOP_PATH}/bin/hadoop dfs -cat /output2/part* # out dla tego inputu: 6 3 5 0 7 1 8 0 2 0 1 0 9 0 3 1 4 0
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