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From "Keith Turner (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ACCUMULO-517) Improve scan information available on monitor page
Date Thu, 05 Apr 2012 18:04:26 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Keith Turner updated ACCUMULO-517:
----------------------------------

    Assignee: Keith Turner  (was: Eric Newton)
    
> Improve scan information available on monitor page
> --------------------------------------------------
>
>                 Key: ACCUMULO-517
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-517
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: monitor, tserver
>            Reporter: Keith Turner
>            Assignee: Keith Turner
>             Fix For: 1.5.0
>
>
> The monitor page does not give good awareness with respect to what is actually happening
with scans.  It would be interesting to know the following.
>  * Number of seeks done on server side
>  * Number of entries read on the server side
>  * Number of entries returned on the servers die
> A filtering iterator may do a lot of seeks and drop a lot of data, but this is not really
shown in anyway on the monitor page.  If we displayed the info above, then a user could see
the filter seeking, reading and not returning data.  Currently only the amount of data returned
by iterators is displayed, not the amount of data read by iterators.
> Also the current monitor page displays scan session, which corresponds to a user starting
a scan on a tablet server.  It does give the user a info about how many seeks the iterators
that are running as part of that scan session are doing.

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