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https://issues.apache.org/jira/browse/OMID-78?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ohad Shacham closed OMID-78.
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Resolution: Fixed
> Identify transaction snapshot at the server
> -------------------------------------------
>
> Key: OMID-78
> URL: https://issues.apache.org/jira/browse/OMID-78
> Project: Apache Omid
> Issue Type: Sub-task
> Reporter: Ohad Shacham
> Assignee: Ohad Shacham
> Priority: Major
> Fix For: 1.0.0.0
>
> Attachments: OMID-78.v1.patch
>
>
> To identify a transaction's snapshot in scans and gets, Omid reads and filter
> cells at the client side. This filtering requires checking the shadow cells
> and accessing the commit table if needed.
> Doing the filtering at the server side should be more efficient since less
> data is being transferred to the client and also, in some cases, RPCs are
> being saved.
> This feature requires implementing a coprocessor that will do the filtering
> at the server side and returns only the relevant snapshot to the client side.
> This feature is also needed to support the integration of Omid with Phoenix.
> This is required since Phoenix has coprocessors that change and condence the
> data returned to the client and therefore, filtering at the client side in
> this case is impossible.
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