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Date: Tue, 12 Jul 2011 10:55:59 +0000 (UTC)
From: "ChiaHung Lin (JIRA)" <jira@apache.org>
To: hama-dev@incubator.apache.org
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Subject: [jira] [Commented] (HAMA-363) Add network condition monitoring
 function to BSPMaster
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    [ https://issues.apache.org/jira/browse/HAMA-363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13063815#comment-13063815 ] 

ChiaHung Lin commented on HAMA-363:
-----------------------------------

My test on my current vms looks work. 

But after reading parts of the paper[1], I discover the current implementation lacks of features such as federation, data transport, etc. The federation can provide aggregative information so that e.g. BSPMaster can proceed further by deciding if a worker fails, which is required by monitor service. In addition, plugin part may probably need to be improved as well, though at the moment from the developer's viewpoint it looks ok. 

[1]. The ganglia distributed monitoring system: design, implementation, and experience. http://ganglia.info/papers/science.pdf

> Add network condition monitoring function to BSPMaster
> ------------------------------------------------------
>
>                 Key: HAMA-363
>                 URL: https://issues.apache.org/jira/browse/HAMA-363
>             Project: Hama
>          Issue Type: New Feature
>          Components: bsp
>    Affects Versions: 0.3.0
>            Reporter: Edward J. Yoon
>             Fix For: 0.4.0
>
>         Attachments: HAMA-363.patch, HAMA-363.patch, HAMA-363.patch
>
>
> There's few reason why this issue is important. Basically Master server should know the status of cluster:
>  * to optimize the network usage
>  * to handle network connectivity problems
>  * to handle different network conditions
> And, I would like to see some network usage statistics.
> In this issue, we implement only basic function which is collect network usage.

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