[jira] [Commented] (CONNECTORS-286) Get ManifoldCF to run on top of a key/value store like Voldemort, for potential massive scalability improvements and speed gains

["Jan Høydahl (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CONNECTORS-286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13774422#comment-13774422 ] 

Jan Høydahl commented on CONNECTORS-286:
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+1 to piggy-back on GORA. Users can then use their favorite NoSql as backend.

Once we support NoSql as backend, enabling caching of docs in output connectors for re-feed gets easier too.
                
> Get ManifoldCF to run on top of a key/value store like Voldemort, for potential massive scalability improvements and speed gains
> --------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CONNECTORS-286
>                 URL: https://issues.apache.org/jira/browse/CONNECTORS-286
>             Project: ManifoldCF
>          Issue Type: New Feature
>          Components: Framework core
>            Reporter: Karl Wright
>            Assignee: Karl Wright
>             Fix For: ManifoldCF next
>
>
> ManifoldCF's reliance on a relational database limits its throughput and scalability.  I am now convinced it is possible to build all the structures we need within a distributed key-value store like Voldemort, which has the nice side effect of permitting massive scaling.  I envision there will be several layers to this project, some of which may have broader utility in the open-source community at large:
> (1) An atomic serialization layer, which adds serialization capabilities to an non-transactional substrate;
> (2) A transaction layer, which uses atomic serialization to build a notion of light transactions;
> (3) A table and index layer, which defines SQL-like concepts of tables and btree indexes on top of the transaction layer, via a Java API;
> (4) A generic "database abstraction" layer, which is capable of representing both standard SQL databases as well as this NoSQL variant, so that ManifoldCF can support both models.
> This is obviously a major development task, and as such is not envisioned to be completed by the next standard release.  Work will indeed need to be done in a branch.

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