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From "Michael Wall (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-4500) Implement visibility histograms as a table feature
Date Mon, 17 Oct 2016 12:18:58 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-4500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15582081#comment-15582081
] 

Michael Wall commented on ACCUMULO-4500:
----------------------------------------

I am in favor of this idea in general.  I have concerns about performance though.  Beside
protecting this information with some permission, can we also it configurable to turn off
and on?  If you have it off for some period, then turn it on, only new ingest and files that
get compacted would have the info.  If you turn have it on, then turn it off, new data would
not have it and compactions would not write it back out.

> Implement visibility histograms as a table feature
> --------------------------------------------------
>
>                 Key: ACCUMULO-4500
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-4500
>             Project: Accumulo
>          Issue Type: New Feature
>          Components: client, tserver
>            Reporter: Josh Elser
>
> Add support to quickly extract a histogram of all of the visibilities stored in an Accumulo
table.
> DISCUSS: https://lists.apache.org/thread.html/df5e764362a95277344fd2731a432e9fafc60595e7d30015d9a56b9c@%3Cdev.accumulo.apache.org%3E



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