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Diffstat (limited to 'examples/src')
-rw-r--r-- | examples/src/main/scala/org/apache/spark/examples/graphx/LiveJournalPageRank.scala | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/examples/src/main/scala/org/apache/spark/examples/graphx/LiveJournalPageRank.scala b/examples/src/main/scala/org/apache/spark/examples/graphx/LiveJournalPageRank.scala new file mode 100644 index 0000000000..d58fddff2b --- /dev/null +++ b/examples/src/main/scala/org/apache/spark/examples/graphx/LiveJournalPageRank.scala @@ -0,0 +1,49 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.spark.examples.graphx + +import org.apache.spark.SparkContext._ +import org.apache.spark._ +import org.apache.spark.graphx._ +import org.apache.spark.graphx.lib.Analytics + +/** + * Uses GraphX to run PageRank on a LiveJournal social network graph. Download the dataset from + * http://snap.stanford.edu/data/soc-LiveJournal1.html. + */ +object LiveJournalPageRank { + def main(args: Array[String]) { + if (args.length < 2) { + System.err.println( + "Usage: LiveJournalPageRank <master> <edge_list_file>\n" + + " [--tol=<tolerance>]\n" + + " The tolerance allowed at convergence (smaller => more accurate). Default is " + + "0.001.\n" + + " [--output=<output_file>]\n" + + " If specified, the file to write the ranks to.\n" + + " [--numEPart=<num_edge_partitions>]\n" + + " The number of partitions for the graph's edge RDD. Default is 4.\n" + + " [--partStrategy=RandomVertexCut | EdgePartition1D | EdgePartition2D | " + + "CanonicalRandomVertexCut]\n" + + " The way edges are assigned to edge partitions. Default is RandomVertexCut.") + System.exit(-1) + } + + Analytics.main(args.patch(1, List("pagerank"), 0)) + } +} |