[
https://issues.apache.org/jira/browse/FLINK-11595?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17321536#comment-17321536
]
Flink Jira Bot commented on FLINK-11595:
----------------------------------------
This issue and all of its Sub-Tasks have not been updated for 180 days. So, it
has been labeled "stale-minor". If you are still affected by this bug or are
still interested in this issue, please give an update and remove the label. In
7 days the issue will be closed automatically.
> Gelly's addEdge() in certain circumstances still includes duplicate vertices.
> -----------------------------------------------------------------------------
>
> Key: FLINK-11595
> URL: https://issues.apache.org/jira/browse/FLINK-11595
> Project: Flink
> Issue Type: Bug
> Components: Library / Graph Processing (Gelly)
> Affects Versions: 1.7.1
> Environment: MacOS, intelliJ
> Reporter: Calvin Han
> Priority: Minor
> Labels: stale-minor
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> Assuming a base graph constructed by:
> ```
> public class GraphCorn {
> public static Graph<String, VertexLabel, EdgeLabel> gc;
> public GraphCorn(String filename) throws Exception {
> ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
> DataSet<Tuple6<String, String, String, String, String, String>> csvInput =
> env.readCsvFile(filename)
> .types(String.class, String.class, String.class, String.class, String.class,
> String.class);
> DataSet<Vertex<String, VertexLabel>> srcTuples = csvInput.project(0, 2)
> .map(new MapFunction<Tuple, Vertex<String, VertexLabel>>() {
> @Override
> public Vertex<String, VertexLabel> map(Tuple tuple) throws Exception {
> VertexLabel lb = new VertexLabel(Util.hash(tuple.getField(1)));
> return new Vertex<>(tuple.getField(0), lb);
> }
> }).returns(new TypeHint<Vertex<String, VertexLabel>>(){});
> DataSet<Vertex<String, VertexLabel>> dstTuples = csvInput.project(1, 3)
> .map(new MapFunction<Tuple, Vertex<String, VertexLabel>>() {
> @Override
> public Vertex<String, VertexLabel> map(Tuple tuple) throws Exception {
> VertexLabel lb = new VertexLabel(Util.hash(tuple.getField(1)));
> return new Vertex<>(tuple.getField(0), lb);
> }
> }).returns(new TypeHint<Vertex<String, VertexLabel>>(){});
> DataSet<Vertex<String, VertexLabel>> vertexTuples =
> srcTuples.union(dstTuples).distinct(0);
> DataSet<Edge<String, EdgeLabel>> edgeTuples = csvInput.project(0, 1, 4, 5)
> .map(new MapFunction<Tuple, Edge<String, EdgeLabel>>() {
> @Override
> public Edge<String, EdgeLabel> map(Tuple tuple) throws Exception {
> EdgeLabel lb = new EdgeLabel(Util.hash(tuple.getField(2)),
> Long.parseLong(tuple.getField(3)));
> return new Edge<>(tuple.getField(0), tuple.getField(1), lb);
> }
> }).returns(new TypeHint<Edge<String, EdgeLabel>>(){});
> this.gc = Graph.fromDataSet(vertexTuples, edgeTuples, env);
> }
> }
> ```
> Base graph CSV:
> ```
> 0,1,a,b,c,0
> 0,2,a,d,e,1
> 1,2,b,d,f,2
> ```
> Attempt to add edges using the following function:
> ```
> try(BufferedReader br = new BufferedReader(new FileReader(this.fileName))) {
> for(String line; (line = br.readLine()) != null; ) {
> String[] attributes = line.split(",");
> assert(attributes.length == 6);
> String srcID = attributes[0];
> String dstID = attributes[1];
> String srcLb = attributes[2];
> String dstLb = attributes[3];
> String edgeLb = attributes[4];
> String ts = attributes[5];
> Vertex<String, VertexLabel> src = new Vertex<>(srcID, new
> VertexLabel(Util.hash(srcLb)));
> Vertex<String, VertexLabel> dst = new Vertex<>(dstID, new
> VertexLabel(Util.hash(dstLb)));
> EdgeLabel edge = new EdgeLabel(Util.hash(edgeLb), Long.parseLong(ts));
> GraphCorn.gc = GraphCorn.gc.addEdge(src, dst, edge);
> }
> } catch (Exception e) {
> System.err.println(e.getMessage());
> }
> ```
> The graph components to add is:
> ```
> 0,4,a,d,k,3
> 1,3,b,a,g,3
> 2,3,d,a,h,4
> ```
> GraphCorn.gc will contain duplicate node 0, 1, and 2 (those that exist in
> base graph), which should not be the case acceding to the documentation.
>
>
>
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
