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From Thomas Mueller <muel...@adobe.com>
Subject Re: [jr3] clustering
Date Mon, 05 Mar 2012 10:36:36 GMT
Hi,

>>The node id
>> could be the complete path (which isn't terribly efficient, but avoids
>> problems). 
>
>right. but with delta encoding the space utilization will be better.
>given the locality of JCR/MK nodes in a low level block, you will
>have very similar paths that share a long prefix.

Sorry I don't know what you mean with delta encoding, could you give an
example?

>>This sounds like a promising approach for MongoDB.
>
>MongoDB only gives you atomic guarantees on the document level.
>how would you implement a commit for multiple JCR nodes?

Do we need to guarantee all commits to be atomic (all or nothing) in a
cluster? 

MongoDB supports two-phase commit, but I would only use it for special
cases like locking.

Regards,
Thomas


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