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From "Yi Deng (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-12338) Client side scanning prefetching.
Date Fri, 24 Oct 2014 15:35:34 GMT
Yi Deng created HBASE-12338:
-------------------------------

             Summary: Client side scanning prefetching.
                 Key: HBASE-12338
                 URL: https://issues.apache.org/jira/browse/HBASE-12338
             Project: HBase
          Issue Type: Sub-task
          Components: Client
    Affects Versions: 0.98.6.1, 1.0.0, 2.0.0
            Reporter: Yi Deng
            Assignee: Yi Deng


Since server side prefetching was not proved to be a good way to prefetch, we need to do it
on client side.
This is a wrapper class that takes any instance of `ResultScanner` as the underneath scanning
component. The class will schedule the scanning in a background thread. There is a buffering
queue storing prefetched results, whose's length is configurable. The prefetcher will release
the thread if the queue is full and wait for results to be consumed.



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