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https://issues.apache.org/jira/browse/TEPHRA-227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15893142#comment-15893142
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ASF GitHub Bot commented on TEPHRA-227:
---------------------------------------
Github user poornachandra commented on a diff in the pull request:
https://github.com/apache/incubator-tephra/pull/40#discussion_r104040622
--- Diff:
tephra-hbase-compat-0.96/src/main/java/org/apache/tephra/hbase/txprune/InvalidListPruningDebug.java
---
@@ -148,6 +232,9 @@ private void printUsage(PrintWriter pw) {
"provided as the limit, prune upper bounds of all regions
are returned.");
pw.println("prune-info region-name-as-string");
pw.println("Desc: Prints out the Pruning information for the region
'region-name-as-string'");
+ pw.println("to-compact-regions limit");
+ pw.println("Desc: Prints out 'limit' number of regions that are
active, but are not empty, " +
+ "but have not registered a prune upper bound.");
--- End diff --
`and have not registered a prune upper bound.`
> 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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