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From "Padraic I. Hannon" <...@wasabicowboy.com>
Subject Re: A JCR with infinite capacity
Date Fri, 24 Aug 2007 00:47:08 GMT
I started to write a Hadoop DFS based persistence manager. I can create 
a Jira ticket and upload if you would like. I am unsure if it works as I 
have been distracted by other things over the last week or so.


Alan D. Cabrera wrote:
> I need a JCR that has infinite capacity.  This is for a photo 
> repository that would store millions of 5-10MB photos.  The photos 
> themselves would not change.  I need to be able to add
> One idea that I've been toying with is to create a persistence manager 
> that manages multiple stores.  Some of these stores could even be on 
> other physical servers, maybe even be  a farm of servers.  I was 
> thinking of managing the node and property states along the same lines 
> as the google file system manages blocks; I have some ideas how this 
> can be done simply.  Property and node states could be duplicated for 
> resiliance in the face of disk/server failures.  Another nice thing is 
> that I could map the JCR path to a URL to the actual file server and 
> have the file server serve up the file w/out having to go through the 
> JCR metadata layer.
> Another way might be to graft Hadoop as a FileSystem.
>  I realize that this may only make sense in the limited application of 
> storing photos that are not modified.  Thoughts?
> Regards,
> Alan

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