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From "Armando Miraglia (JIRA)" <j...@apache.org>
Subject [jira] [Created] (GIRAPH-692) Add Bracha Toueg Deadlock Detection in the examples
Date Sat, 15 Jun 2013 16:56:19 GMT
Armando Miraglia created GIRAPH-692:
---------------------------------------

             Summary: Add Bracha Toueg Deadlock Detection in the examples
                 Key: GIRAPH-692
                 URL: https://issues.apache.org/jira/browse/GIRAPH-692
             Project: Giraph
          Issue Type: Improvement
          Components: examples
            Reporter: Armando Miraglia
            Priority: Minor


Since I started working with Giraph I decided to implement a deadlock detection algorithm.
For this reason I am implementing the Bracha-Toueg Deadlock Detection algorithm[1]

The algorithm is a distributed asynchronous deadlock detection algorithm which is applied
on a wait-for graph which is generated by taking a snapshot of the graph to be analysed.

I am testing the first implementation which is available here:
https://github.com/armax00/giraph/tree/trunk/giraph-examples/src/main/java/org/apache/giraph/examples

The graphs I am using for testing are available here: https://github.com/armax00/giraph/tree/trunk/data/inputs

I will provide a patch as soon as I am done with it.

In the next version I will introduce the possibility to express N-out-of-M relationships among
the edges.

[1] http://link.springer.com/article/10.1007%2FBF01782773

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