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https://issues.apache.org/jira/browse/CHUKWA-569?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Yang updated CHUKWA-569:
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Resolution: Fixed
Status: Resolved (was: Patch Available)
I just committed this.
> Add an option to speed up graph_explorer.jsp in fetching Column Name and Row
> Name
> ---------------------------------------------------------------------------------
>
> Key: CHUKWA-569
> URL: https://issues.apache.org/jira/browse/CHUKWA-569
> Project: Chukwa
> Issue Type: Improvement
> Components: User Interface
> Environment: Java 6, MacOSX 10.6
> Reporter: Eric Yang
> Assignee: Eric Yang
> Fix For: 0.5.0
>
> Attachments: CHUKWA-569.patch
>
>
> When select a column family, the only way to figure out all columns inside
> the column family is to do a scan. Since HBase does not have an API to get
> column names only, we have to provide a temporary workaround. We can add an
> option to do full table scan, and we scan small amount of data to figure out
> the column patterns by default. This short cut make assumption that data are
> in repeated pattern, scanning one row should be sufficient to find all the
> columns. The same principle applies in scanning for unique row names.
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