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From "Edward J. Yoon (JIRA)" <j...@apache.org>
Subject [jira] Created: (HAMA-238) Example fail when performing sparse matrices addition
Date Tue, 16 Feb 2010 15:12:27 GMT
Example fail when performing sparse matrices addition
-----------------------------------------------------

                 Key: HAMA-238
                 URL: https://issues.apache.org/jira/browse/HAMA-238
             Project: Hama
          Issue Type: Bug
          Components: examples
    Affects Versions: 0.2.0
            Reporter: Edward J. Yoon
            Assignee: Edward J. Yoon
            Priority: Minor
             Fix For: 0.2.0


Hi there

Have following working setup:

hadoop 0.20.1
hbase 0.20.3
hama latest SVN trunk version

Notes:

had to replace and rebuild hama with new hbase lib (upgraded to version
0.20.3)

1. successfully rand hama example to generate random matrix

$HAMA_HOME/bin/hama examples rand -m 10 -r 10 100 100 30.5% matrixA

Note: verified hbase table was generated (via shell list and scan)

2. moved on to other examples, generated 2 random matrices:

$HAMA_HOME/bin/hama examples rand -m 10 -r 10 100 100 30.5% matrixA
$HAMA_HOME/bin/hama examples rand -m 10 -r 10 100 100 30.5% matrixB

then an attempt at distributed addition:

$HAMA_HOME/bin/hama examples add1  matrixA matrixB


3. in similar venue tried multi, norms and and similarity (all generated
exceptions)

Exceptions appear to be hama code related (and not environmentally specific)

Culprit could be in improper usage of input matrix data to add,multi, norms
and similarity.

Another question is about lack of "breadth first search" sample, is this a
sub-project of next release?

thanks

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