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https://issues.apache.org/jira/browse/KUDU-1686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Grant Henke resolved KUDU-1686.
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Resolution: Fixed
Assignee: Grant Henke
Fix Version/s: n/a
> Add API to split a scan token into smaller scans
> ------------------------------------------------
>
> Key: KUDU-1686
> URL: https://issues.apache.org/jira/browse/KUDU-1686
> Project: Kudu
> Issue Type: Improvement
> Components: client, perf, tserver
> Affects Versions: 1.0.0
> Reporter: Todd Lipcon
> Assignee: Grant Henke
> Priority: Major
> Fix For: n/a
>
>
> Quoting from the scan token design doc:
> {quote}
> Eventually, the scan token API should allow applications to further split
> scan tokens so that inter-tablet parallelism can be acheived. Splitting
> tokens may be achieved by assigning the child tokens non-overlapping sections
> of the primary key range. Even without the token splitting feature built in
> to the API, applications can simulate the effect by building multiple sets of
> scan tokens using non-overlapping sets of primary key bounds. However, it is
> likely that in the future Kudu will be able to choose a more optimal primary
> key split point than the application, perhaps through an internal tablet
> statistics API. Additionally, having the API built in to the Kudu client
> further decreases the effort required to write high performance integrations
> for Kudu.
> {quote}
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