Combiners lose data when reading off of disk
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Key: ACCUMULO-338
URL: https://issues.apache.org/jira/browse/ACCUMULO-338
Project: Accumulo
Issue Type: Bug
Affects Versions: 1.4.0
Reporter: John Vines
Assignee: Billie Rinaldi
Fix For: 1.4.0
There is a bug with Combiners in 1.4 resulting in bad data-
to recreate-
createtable test;
config -t test -s table.iterator.minc.vers=10
config -t test -s table.iterator.majc.vers=10
config -t test -s table.iterator.scan.vers=10
insert r f q 1
insert r f q 2
insert r f q 3
setiter -class org.apache.accumulo.core.iterators.user.SummingCombiner -scan -n
summer -p 60 -t test
true
STRING
scan
flush
scan
deleteiter -t test -n summer -scan
scan
You will see all three values the first scan, 6 for the second scan, 4 for the
third scan, and all three values for the 4th scan. In debug I saw teh values 2,
1, and 1 in that order in the Viterator.next method.
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