fengYu created KYLIN-2926:
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Summary: DumpMerger return incorrect results
Key: KYLIN-2926
URL: https://issues.apache.org/jira/browse/KYLIN-2926
Project: Kylin
Issue Type: Bug
Affects Versions: v2.0.0
Reporter: fengYu
Assignee: fengYu
I our scenario, a cube query will get wrong result once coprocessor need to
spill to disk, Our version is 2.0.0 and I find the root cause is that in
DumpMerger.enqueueFromDump
because in DataTypeSerializer kylin use a ThreadLocal variable ‘current’, It
leading to different elements in dumpCurrentValues share the same object, so
next fill up measure values will change the existing values.
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