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From "Keith Turner (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-110) Scanner creates threads too frequently
Date Wed, 02 Nov 2011 14:51:32 GMT
Scanner creates threads too frequently
--------------------------------------

                 Key: ACCUMULO-110
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-110
             Project: Accumulo
          Issue Type: Bug
          Components: client
            Reporter: Keith Turner
            Assignee: Keith Turner
             Fix For: 1.4.0


After the scanner has read a few batches of data from the tablet server it starts creating
read ahead threads to read batches.  A thread is created per batch.  After a thread reads
a batch it exits.  A thread pool was not used because the scanner does not have a close method.
 A user suggested using a static thread pool, see the following email chain.  

http://mail-archives.apache.org/mod_mbox/incubator-accumulo-dev/201111.mbox/%3C4EB04FE3.5020005@digitalreasoning.com%3E

This static pool should be unbounded, time out threads, use a Synchronous Queue, and create
daemon threads.  

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