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https://issues.apache.org/jira/browse/TEPHRA-214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15855506#comment-15855506
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ASF GitHub Bot commented on TEPHRA-214:
---------------------------------------
Github user poornachandra commented on a diff in the pull request:
https://github.com/apache/incubator-tephra/pull/31#discussion_r99759970
--- Diff:
tephra-hbase-compat-1.1-base/src/main/java/org/apache/tephra/hbase/txprune/DataJanitorState.java
---
@@ -102,11 +107,29 @@ public void savePruneUpperBoundForRegion(byte[]
regionId, long pruneUpperBound)
* @throws IOException when not able to read the data from HBase
*/
public long getPruneUpperBoundForRegion(byte[] regionId) throws
IOException {
+ RegionPruneInfo regionPruneInfo = getPruneInfoForRegion(regionId);
+ return (regionPruneInfo == null) ? -1 :
regionPruneInfo.getCompactionTimestamp();
+ }
+
+ /**
+ * Get the latest {@link RegionPruneInfo} for a given region.
+ *
+ * @param regionId region id
+ * @return {@link RegionPruneInfo} for the region
+ * @throws IOException when not able to read the data from HBase
+ */
+ public RegionPruneInfo getPruneInfoForRegion(byte[] regionId) throws
IOException {
--- End diff --
This method needs to be annotated as `@Nullable`
> Provide a way to debug Transaction Pruning progress
> ---------------------------------------------------
>
> Key: TEPHRA-214
> URL: https://issues.apache.org/jira/browse/TEPHRA-214
> Project: Tephra
> Issue Type: Improvement
> Reporter: Gokul Gunasekaran
> Assignee: Gokul Gunasekaran
>
> It would be good to get information about what regions are lagging that might
> be useful to debug why transaction pruning might not be happening. We do
> print debug information but this method could be invoked on a need-basis
> outside of the regular pruning operation.
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