Got strange problem during the steup funtion for GraphJobRunner.java.
16/03/23 20:22:11 INFO graph.GraphJobRunner: 63083 vertices are loaded into
c02b06:61002
16/03/23 20:22:11 INFO graph.GraphJobRunner: Total time spent for loading
vertices: 4490 ms
16/03/23 20:22:11 INFO graph.GraphJobRunner: Total time spent for broadcasting
global vertex count: 208 ms
16/03/23 20:22:12 INFO graph.GraphJobRunner: Total time spent for initial
superstep: 734 ms
16/03/23 20:22:12 INFO graph.GraphJobRunner: Total time spent for broadcasting
aggregation values: 109 ms
16/03/23 20:22:13 ERROR bsp.BSPTask: Error running bsp setup and bsp function.
java.lang.NullPointerException
at
org.apache.hama.util.UnsafeByteArrayInputStream.<init>(UnsafeByteArrayInputStream.java:63)
at
org.apache.hama.util.WritableUtils.unsafeDeserialize(WritableUtils.java:63)
at org.apache.hama.graph.MapVerticesInfo.get(MapVerticesInfo.java:101)
at
org.apache.hama.graph.GraphJobRunner$ComputeRunnable.<init>(GraphJobRunner.java:362)
at
org.apache.hama.graph.GraphJobRunner.doSuperstep(GraphJobRunner.java:273)
at org.apache.hama.graph.GraphJobRunner.bsp(GraphJobRunner.java:185)
at org.apache.hama.bsp.BSPTask.runBSP(BSPTask.java:171)
at org.apache.hama.bsp.BSPTask.run(BSPTask.java:144)
at
org.apache.hama.bsp.GroomServer$BSPPeerChild.main(GroomServer.java:1255)
Running Pagerank case .
serialization running is good, but breaks down with parallel.
