Gokul Gunasekaran created TEPHRA-227:
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Summary: DebugTool - show regions that have not yet recorded prune
upper bound
Key: TEPHRA-227
URL: https://issues.apache.org/jira/browse/TEPHRA-227
Project: Tephra
Issue Type: Improvement
Affects Versions: 0.11.0-incubating
Reporter: Gokul Gunasekaran
Assignee: Poorna Chandra
Fix For: 0.11.0-incubating
i) getIdleRegions (numRegions) --> since this method returns all the regions
that have ever existed, this is not very useful since some regions might not be
existing anymore. So, we need to intersect the idleregions with the latest
TimeRegion regions.
ii) add a new method - getRegionsToBeFlushed ( ) --> that returns the regions
that are part of the latest TimeRegion but don't have any prune upper bound
recorded and or not empty either.
So during debugging of prune progress, first we can hit the second method and
get the regions to be flushed/compacted (since any regions that have not
compacted/pruned will prevent pruning from progression). After that list is
empty, we will hit the first endpoint to find what regions are lagging,
pruning/compacting them will help advance pruning.
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