Wang Xu created GIRAPH-652:
------------------------------
Summary: Not support only with edge input data in some algorithms.
Key: GIRAPH-652
URL: https://issues.apache.org/jira/browse/GIRAPH-652
Project: Giraph
Issue Type: Wish
Components: graph
Affects Versions: 1.0.0
Reporter: Wang Xu
Priority: Minor
There are two types of input vertex-centric and edge-centric. Some algorithms
need vertex centric data, such as pairs of vertex ids and initial page ranks.
Some algorithms only look at edges. For example, connected components can be
run without any vertex values.
In some conditions , we have only edge-centric data , have not vertex data .
Convert edge-centric data to vertex-centrice data is not bad, but is better.
In my job , I modify EdgeInputSplitsCallable.java to support load vertex auto
when loading edge。
My mainly modify is：
{code:java}
graphState.getWorkerClientRequestProcessor().sendEdgeRequest(
sourceId, readerEdge);
context.progress(); // do this before potential data transfer
++inputSplitEdgesLoaded;
//modify begin
Vertex<I, V, E, M> vertex = this.configuration.createVertex();
if (vertex.getValue() == null) {
vertex.setValue(configuration.createVertexValue());
}
vertex.setConf(configuration);
vertex.setGraphState(graphState);
vertex.initialize(edgeReader.getCurrentEdge().getTargetVertexId(),
vertex.getValue());
PartitionOwner partitionOwner =
bspServiceWorker.getVertexPartitionOwner(vertex.getId());
graphState.getWorkerClientRequestProcessor().sendVertexRequest(
partitionOwner, vertex);
// modify end
// Update status every VERTICES_UPDATE_PERIOD edges
if (inputSplitEdgesLoaded % VERTICES_UPDATE_PERIOD == 0) {
totalEdgesMeter.mark(VERTICES_UPDATE_PERIOD);
{code}
After do it ， my giraph job can only load edge data in any examples。
I wish a similar features can be add into in future version。
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
