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Date: Mon, 30 Apr 2012 20:47:49 +0000 (UTC)
From: "Brian Femiano (JIRA)" <jira@apache.org>
To: giraph-dev@incubator.apache.org
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Subject: [jira] [Commented] (GIRAPH-153) HBase/Accumulo Input and Output
 formats
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    [ https://issues.apache.org/jira/browse/GIRAPH-153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13265200#comment-13265200 ] 

Brian Femiano commented on GIRAPH-153:
--------------------------------------

Hmm I can't reproduce here. Does the below look fine?

pfi-co2fvo4vdf91:trunk bfemiano$ patch -p0 < GIRAPH-153.1.patch 
patching file giraph-formats-contrib/LICENSE.txt
patching file giraph-formats-contrib/license-header.txt
patching file giraph-formats-contrib/src/test/java/org/apache/giraph/BspCase.java
patching file giraph-formats-contrib/src/test/java/org/apache/giraph/format/hbase/TestHBaseRootMarkerVertextFormat.java
patching file giraph-formats-contrib/src/test/java/org/apache/giraph/format/hbase/edgemarker/TableEdgeInputFormat.java
patching file giraph-formats-contrib/src/test/java/org/apache/giraph/format/hbase/edgemarker/TableEdgeOutputFormat.java
patching file giraph-formats-contrib/src/test/java/org/apache/giraph/format/accumulo/TestAccumuloVertexFormat.java
patching file giraph-formats-contrib/src/test/java/org/apache/giraph/format/accumulo/edgemarker/AccumuloEdgeInputFormat.java
patching file giraph-formats-contrib/src/test/java/org/apache/giraph/format/accumulo/edgemarker/AccumuloEdgeOutputFormat.java
patching file giraph-formats-contrib/src/main/assembly/compile.xml
patching file giraph-formats-contrib/src/main/java/org/apache/giraph/format/hbase/package-info.java
Reversed (or previously applied) patch detected!  Assume -R? [n] y
patching file giraph-formats-contrib/src/main/java/org/apache/giraph/format/hbase/HBaseVertexInputFormat.java
patching file giraph-formats-contrib/src/main/java/org/apache/giraph/format/hbase/HBaseVertexOutputFormat.java
patching file giraph-formats-contrib/src/main/java/org/apache/giraph/format/accumulo/AccumuloVertexInputFormat.java
patching file giraph-formats-contrib/src/main/java/org/apache/giraph/format/accumulo/AccumuloVertexOutputFormat.java
patching file giraph-formats-contrib/src/main/java/org/apache/giraph/format/accumulo/package-info.java
Reversed (or previously applied) patch detected!  Assume -R? [n] y
patching file giraph-formats-contrib/pom.xml


> HBase/Accumulo Input and Output formats
> ---------------------------------------
>
>                 Key: GIRAPH-153
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-153
>             Project: Giraph
>          Issue Type: New Feature
>          Components: bsp
>    Affects Versions: 0.1.0
>         Environment: Single host OSX 10.6.8 2.2Ghz Intel i7, 8GB
>            Reporter: Brian Femiano
>         Attachments: GIRAPH-153.patch
>
>
> Four abstract classes that wrap their respective delegate input/output formats for
> easy hooks into vertex input format subclasses. I've included some sample programs that show two very simple graph
> algorithms. I have a graph generator that builds out a very simple directed structure, starting with a few 'root' nodes.
> Root nodes are defined as nodes which are not listed as a child anywhere in the graph. 
> Algorithm 1) AccumuloRootMarker.java  --> Accumulo as read/write source. Every vertex starts thinking it's a root. At superstep 0, send a message down to each
> child as a non-root notification. After superstep 1, only root nodes will have never been messaged. 
> Algorithm 2) TableRootMarker --> HBase as read/write source. Expands on A1 by bundling the notification logic followed by root node propagation. Once we've marked the appropriate nodes as roots, tell every child which roots it can be traced back to via one or more spanning trees. This will take N + 2 supersteps where N is the maximum number of hops from any root to any leaf, plus 2 supersteps for the initial root flagging. 
> I've included all relevant code plus DistributedCacheHelper.java for recursive cache file and archive searches. It is more hadoop centric than giraph, but these jobs use it so I figured why not commit here. 
> These have been tested through local JobRunner, pseudo-distributed on the aforementioned hardware, and full distributed on EC2. More details in the comments.

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