Eric Newton created ACCUMULO-907:
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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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