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Posted to dev@accumulo.apache.org by "Keith Turner (Updated) (JIRA)" <ji...@apache.org> on 2012/04/05 20:04:26 UTC
[jira] [Updated] (ACCUMULO-517) Improve scan information available
on monitor page
[ 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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