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From "Flavio Junqueira (JIRA)" <j...@apache.org>
Subject [jira] Created: (ZOOKEEPER-831) BookKeeper: Throttling improved for reads
Date Wed, 04 Aug 2010 21:27:17 GMT
BookKeeper: Throttling improved for reads
-----------------------------------------

                 Key: ZOOKEEPER-831
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-831
             Project: Zookeeper
          Issue Type: Bug
          Components: contrib-bookkeeper
    Affects Versions: 3.3.1
            Reporter: Flavio Junqueira
            Assignee: Flavio Junqueira
             Fix For: 3.4.0


Reads and writes in BookKeeper are asymmetric: a write request writes one entry, whereas a
read request may read multiple requests. The current implementation of throttling only counts
the number of read requests instead of counting the number of entries being read. Consequently,
a few read requests reading a large number of entries each will spawn a large number of read-entry
requests. 

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