Description
We have a scenario in IMPALA-9782 where we'd like to have multiple threads use KuduPartitioner, but this currently requires instantiating many instances, which is somewhat expensive. It would be a good improvement if we could share the KuduPartitioner. This currently doesn't work because PartitionRow() internally uses a buffer that's a member of the object - https://github.com/cloudera/kudu/blob/master/src/kudu/client/partitioner-internal.cc#L40
I talked with aserbin on slack and he suggested that adding a new method that is not stateful would be a good way to solve this (I also considered cloning KuduPartitioner).
Attachments
Issue Links
- is depended upon by
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IMPALA-9782 KuduPartitionExpr is not thread-safe
- Resolved