Tim Armstrong created IMPALA-9792:
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Summary: Split Kudu scan ranges into smaller chunks for greater
paralellelism
Key: IMPALA-9792
URL: https://issues.apache.org/jira/browse/IMPALA-9792
Project: IMPALA
Issue Type: Improvement
Components: Backend
Reporter: Tim Armstrong
We currently use one thread to scan each tablet, which may underparallelise
queries in many cases. Kudu added an API in KUDU-2437 and KUDU-2670 to split
tokens at a finer granularity.
See
https://github.com/apache/kudu/commit/22a6faa44364dec3a171ec79c15b814ad9277d8f#diff-a4afa9dba99c7612b2cb9176134ff2b0
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