[GIRAPH-152] NPE at PageRankBenchmark

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.0.0
• Component/s: examples

Environment

Hadoop-0.20.205.0
Linux: Amazon EC2, standard one "Amazon Linux 32 bit"
Giraph: compiled from CL 1245205

• Assignee: Unassigned
• Reporter: Yury Litvinov
• Created: 20/Feb/12 09:44
• Updated: 20/Feb/12 17:15
• Resolved: 20/Feb/12 17:15

Description

1. I've copied hadoop-0.20.205.0 into Amazon EC2 linux
2. Compiled latest Giraph (giraph-0.2-SNAPSHOT-jar-with-dependencies.jar) from sources (CL 1245205) and copied it to Linux as well:
3. Run this command as suggested in docs (https://cwiki.apache.org/confluence/display/GIRAPH/Quick+Start+Guide)

> hadoop-0.20.205.0/bin/hadoop jar giraph-0.2-SNAPSHOT-jar-with-dependencies.jar org.apache.giraph.benchmark.PageRankBenchmark -e 1 -s 3 -v -V 50000 -w 1

OBSERVED:

 
Exception in thread "main" java.lang.NullPointerException
        at org.apache.giraph.benchmark.PageRankBenchmark.run(PageRankBenchmark.java:127)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
        at org.apache.giraph.benchmark.PageRankBenchmark.main(PageRankBenchmark.java:162)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:616)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:156)