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Posted to dev@giraph.apache.org by "Byungnam Lim (JIRA)" <ji...@apache.org> on 2013/06/05 06:33:20 UTC
[jira] [Resolved] (GIRAPH-679) Edge e.getTargetVertexId() returns
same instance
[ https://issues.apache.org/jira/browse/GIRAPH-679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Byungnam Lim resolved GIRAPH-679.
---------------------------------
Resolution: Not A Problem
> Edge e.getTargetVertexId() returns same instance
> ------------------------------------------------
>
> Key: GIRAPH-679
> URL: https://issues.apache.org/jira/browse/GIRAPH-679
> Project: Giraph
> Issue Type: Bug
> Components: build
> Affects Versions: 1.1.0
> Reporter: Byungnam Lim
>
> I was trying to remove all edges of each vertex in one superstep. Below is my code.
> for (Edge<LongWritable, FloatWritable> e : vertex.getEdges()) {
> removeEdgesRequest(vertex.getId(), e.getTargetVertexId());
> }
> But it just removed only one edge in one superstep.
> I debugged and found e.getTargetVertexId() returns one same instances so that makes the removedEdgeList.add() in VertexMutations class could not add the elements properly.
> By creating new LongWritable instance for targetVertexId parameter, I could remove all edges in one superstep.
> But I'm doubt that I found that the Edge e also gets one same instance during 'for' loop. Maybe the problem exists in vertex.getEdges() not e.getTargetVertexId().
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