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From "Heshan Suriyaarachchi (JIRA)" <>
Subject [jira] [Created] (AIRAVATA-823) Add an extension point to Airavata to have pluggable EC2 Scheduling Algorithms
Date Fri, 12 Apr 2013 15:30:15 GMT
Heshan Suriyaarachchi created AIRAVATA-823:

             Summary: Add an extension point to Airavata to have pluggable EC2 Scheduling
                 Key: AIRAVATA-823
             Project: Airavata
          Issue Type: Improvement
          Components: GFac, XBaya
    Affects Versions: 0.7
            Reporter: Heshan Suriyaarachchi
             Fix For: 0.9

Let me explain  the usecase here.

>From Airavata 0.8 onwards, I'm planning to give the Airavata user the flexibility in selecting
(optional) a scheduling algorithm when running EC2 workflows. The current trunk has the greedy
algorithm and I will be adding a round robin algorithm for the 0.8 release. 

One value added extension-point would be to let a user (who is not familiar with our codebase)
to implement his/her scheduling algorithm (by implementing a set of interfaces). Currently
we have these interfaces which the user can use to implement his/her own alogrithm. Then,
the Airavata eco-system should support, letting the user drop his/her custom algorithm implementation
jar to the Airavata server and select it at runtime. This is something similar to the extension-points
that we had at Synapse [1]. If we support this, the user would not have to mess around with
the our codebase and they can do their scheduling algorithm implementations independently.

[1] -

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