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From "Eric Newton (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-907) stacking combiners produces a strange result
Date Fri, 14 Dec 2012 17:32:12 GMT
Eric Newton created ACCUMULO-907:
------------------------------------

             Summary: stacking combiners produces a strange result
                 Key: ACCUMULO-907
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-907
             Project: Accumulo
          Issue Type: Bug
          Components: tserver
    Affects Versions: 1.4.2
            Reporter: Eric Newton
            Assignee: Keith Turner


Paste the following into your shell:

{noformat}
deletetable test
createtable test
setiter -t test -p 16 -scan -n test_1 -class org.apache.accumulo.core.iterators.user.SummingCombiner

count:a

STRING
setiter -t test -p 17 -scan -n test_2 -class org.apache.accumulo.core.iterators.user.SummingCombiner

count:a

STRING
setiter -t test -p 18 -scan -n test_3 -class org.apache.accumulo.core.iterators.user.SummingCombiner

count:a

STRING
setiter -t test -p 10 -scan -n test_4 -class org.apache.accumulo.core.iterators.user.SummingCombiner

count:a

STRING
insert row count a 1
insert row count a 1
insert row count b 1
insert row count b 1
insert row count b 1
insert row count c 1
scan
{noformat}

I expect:

{noformat}
row count:a []    2
row count:b []    3
row count:c []    1
{noformat}

But instead, I get this:
{noformat}
row count:a []    12
{noformat}



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