Lars Hofhansl created PHOENIX-3000:
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Summary: Reduce memory consumption during DISTINCT aggregation
Key: PHOENIX-3000
URL: https://issues.apache.org/jira/browse/PHOENIX-3000
Project: Phoenix
Issue Type: Bug
Reporter: Lars Hofhansl
In {{DistinctValueWithCountServerAggregator.aggregate}} we hold on the ptr
handed to us from HBase.
Note that this pointer points into an HFile Block, and hence we hold onto the
entire block for the duration of the aggregation.
If the column has high cardinality we might attempt holding the entire table in
memory in the extreme case.
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