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https://issues.apache.org/jira/browse/PHOENIX-6844?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Istvan Toth updated PHOENIX-6844:
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Description:
We currently inherit IndexRegionSplitPolicy from SteppingSplitPolicy, which is
the modern HBase default, and provides a good balance between parallelization
and conserving the number of regions.
However, users may want to use more or less parallelization for specific tables.
Providing IndexRegionSplitPolicy variants extending
IncreasingToUpperBoundRegionSplitPolicy and ConstantSizeRegionSplitPolicy would
enable better tuning of split behaviour for tables with local indexes.
We should also add a property to specify the default SplitPolicy for when
adding a local index for the first time.
was:
We currently inherit IndexRegionSplitPolicy from SteppingSplitPolicy, which is
the modern HBase default, and provides a good balance between parallelization
and conserving the number of regions.
However, users may want to use more or less parallelization for specific tables.
Providing IndexRegionSplitPolicy from IncreasingToUpperBoundRegionSplitPolicy
and ConstantSizeRegionSplitPolicy would enable better tuning of split behaviour
for tables with local indexes.
We should also add a property to choose the default SplitPolicy for when adding
a local index for the first time.
> Provide multiple IndexRegionSplitPolicy implementations
> -------------------------------------------------------
>
> Key: PHOENIX-6844
> URL: https://issues.apache.org/jira/browse/PHOENIX-6844
> Project: Phoenix
> Issue Type: Wish
> Components: core
> Reporter: Istvan Toth
> Priority: Major
> Labels: beginner
>
> We currently inherit IndexRegionSplitPolicy from SteppingSplitPolicy, which
> is the modern HBase default, and provides a good balance between
> parallelization and conserving the number of regions.
> However, users may want to use more or less parallelization for specific
> tables.
> Providing IndexRegionSplitPolicy variants extending
> IncreasingToUpperBoundRegionSplitPolicy and ConstantSizeRegionSplitPolicy
> would enable better tuning of split behaviour for tables with local indexes.
> We should also add a property to specify the default SplitPolicy for when
> adding a local index for the first time.
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