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From "Poorna Chandra (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TEPHRA-230) Improve the logic used to find recorded regions during invalid list pruning
Date Tue, 16 May 2017 21:39:04 GMT
Poorna Chandra created TEPHRA-230:
-------------------------------------

             Summary: Improve the logic used to find recorded regions during invalid list
pruning
                 Key: TEPHRA-230
                 URL: https://issues.apache.org/jira/browse/TEPHRA-230
             Project: Tephra
          Issue Type: Bug
            Reporter: Poorna Chandra
            Assignee: Poorna Chandra
             Fix For: 0.11.0-incubating


During an invalid list pruning run, the plugin records the regions present on the HBase cluster
at that time. It also records the count of regions as a checksum. 

While reading the list of recorded regions, if the checksum does not match the number of regions
read at time {{t}}, then the plugin will move on to regions at time {{t - 1}}. However, the
{{t-1}} computation in inefficient today, and leads to microsecond decrements. It can be improved
to use the time at which the current set of regions were recorded.



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