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From "Edward J. Yoon (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HAMA-443) SSSP doesn't works with multi-tasks
Date Mon, 12 Dec 2011 09:44:32 GMT

    [ https://issues.apache.org/jira/browse/HAMA-443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13167435#comment-13167435
] 

Edward J. Yoon commented on HAMA-443:
-------------------------------------

Rest are all IO or BSP framework bugs.

I'm close this issue and will upload the benchmark results to wiki.
                
> SSSP doesn't works with multi-tasks
> -----------------------------------
>
>                 Key: HAMA-443
>                 URL: https://issues.apache.org/jira/browse/HAMA-443
>             Project: Hama
>          Issue Type: Bug
>          Components: examples
>    Affects Versions: 0.3.0
>            Reporter: Edward J. Yoon
>            Assignee: Edward J. Yoon
>             Fix For: 0.4.0
>
>         Attachments: HAMA-443.patch, HAMA-443_1.patch, HAMA-443_v2.patch, HAMA-443_v3.patch,
HAMA-443_v4.patch, HAMA-443_v5.patch, mapToList.patch, patch.txt, refactor.patch, test.patch,
test2.patch
>
>
> {code}
> root@Cnode1:/usr/local/src/hama-trunk# core/bin/hama jar examples/target/hama-examples-0.4.0-incubating-SNAPSHOT.jar
sssp Klewno xx /user/root/edward/sssp-adjacencylist.txt
> Single Source Shortest Path Example:
> <Startvertex name> <optional: output path> <optional: path to own adjacency
list textfile!>
> Setting default start vertex to "Frankfurt"!
> Setting start vertex to Klewno!
> Using new output folder: xx
> 11/09/26 09:46:24 INFO graph.ShortestPaths: Starting data partitioning...
> 11/09/26 09:47:12 INFO graph.ShortestPaths: Finished!
> 11/09/26 09:47:12 INFO bsp.BSPJobClient: Running job: job_201109260929_0004
> 11/09/26 09:47:15 INFO bsp.BSPJobClient: Current supersteps number: 0
> 11/09/26 09:47:21 INFO bsp.BSPJobClient: Current supersteps number: 1
> 11/09/26 09:47:33 INFO bsp.BSPJobClient: The total number of supersteps: 1
> Job Finished in 21.553 seconds
> -------------------- RESULTS --------------------
> java.lang.NullPointerException
>         at org.apache.hama.examples.graph.ShortestPathsBase.printOutput(ShortestPathsBase.java:93)
>         at org.apache.hama.examples.graph.ShortestPaths.main(ShortestPaths.java:239)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
>         at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
>         at org.apache.hama.examples.ExampleDriver.main(ExampleDriver.java:37)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.hama.util.RunJar.main(RunJar.java:145)
> {code}

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