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Posted to notifications@accumulo.apache.org by "Christopher Tubbs (JIRA)" <ji...@apache.org> on 2019/04/23 23:07:00 UTC

[jira] [Resolved] (ACCUMULO-1495) Host multiple read-only versions of tablets for query performance

     [ https://issues.apache.org/jira/browse/ACCUMULO-1495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christopher Tubbs resolved ACCUMULO-1495.
-----------------------------------------
    Resolution: Won't Fix

Probably not worth pursuing at this time.

> Host multiple read-only versions of tablets for query performance
> -----------------------------------------------------------------
>
>                 Key: ACCUMULO-1495
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1495
>             Project: Accumulo
>          Issue Type: New Feature
>            Reporter: Christopher Tubbs
>            Priority: Major
>
> It might be worth providing read-only views of tablets on multiple servers, while writes go to a single authoritative server. This could improve query performance in some cases.
> Some things to consider:
> # Consistency: can I read what I've just written?
> # Configuration: how many copies?
> # Configuration: how long between syncs?
> # Performance: locality, number of file replicas
> Variation:
> Permit multiple hosting only on tables that have been locked for writes (useful with a strictly enforced clone-and-lock feature).



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