KeyValueSortReducer collapses all values to last passed
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Key: HBASE-2101
URL: https://issues.apache.org/jira/browse/HBASE-2101
Project: Hadoop HBase
Issue Type: Bug
Reporter: stack
Fix For: 0.20.3, 0.20.4, 0.21.0
>From mailing list by Ioannis Konstantinou:
{code}The problem is in the class
org.apache.hadoop.hbase.mapreduce.KeyValueSortReducer.
When you add keyvalues to the treeset for sorting, you need to add keyvalue
clones instead of just references. What happens now, is that in every
iteration, the value that exists in the treeset gets replaced with the new
value.
So, you need to replace line 41 ( map.add(kv);)
with this line: map.add(kv.clone())
in this case, the treeset populates correcty.{code}
I filed this against 0.20.3 so if we have to cut a new RC, we can include this
fix too.
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