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From "Lars George (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-2165) Improve fragmentation display and implementation
Date Mon, 25 Jan 2010 13:35:34 GMT
Improve fragmentation display and implementation

                 Key: HBASE-2165
                 URL: https://issues.apache.org/jira/browse/HBASE-2165
             Project: Hadoop HBase
          Issue Type: Improvement
    Affects Versions: 0.20.4, 0.21.0
            Reporter: Lars George
            Priority: Minor
             Fix For: 0.20.4, 0.21.0

Improve by 

- moving the "blocking" FS scan into a thread so that the UI loads fast and initially displays
"n/a" but once it has completed the scan it displays the proper numbers
- explaining what fragmentation means to the user (better hints or help text in UI)
- Switch -ROOT- (and maybe even .META.?) to simply say "Yes" or a tick that it is fragmented
as it only has 0% or 100% available (since it has only a single region)
- also computing the space occupied by each table and the total and - if easily done - add
a graph to display it (Google Pie Chart would be nice but is an external link)

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