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From "Eric Newton (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ACCUMULO-907) stacking combiners produces a strange result
Date Fri, 14 Dec 2012 18:08:12 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-907?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Newton updated ACCUMULO-907:
---------------------------------

    Description: 
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

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}



  was:
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}



    
> 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
> 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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