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https://issues.apache.org/jira/browse/HBASE-5241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phabricator updated HBASE-5241:
-------------------------------

    Attachment: HBASE-5241.D1731.2.patch

aaiyer updated the revision "HBASE-5241 [jira] Deletes should not mask Puts 
that come after it.".
Reviewers: JIRA, Kannan, Karthik, stack, tedyu, nspiegelberg, jgray, lhofhansl, 
mbautin, gqchen

  the current state of affairs, supporting old behavior.

  will work more on this, once we hear from more folks on the directions we 
want to go.

REVISION DETAIL
  https://reviews.facebook.net/D1731

AFFECTED FILES
  src/test/java/org/apache/hadoop/hbase/regionserver/TestBlocksRead.java
  src/test/java/org/apache/hadoop/hbase/regionserver/TestSeekOptimizations.java
  src/test/java/org/apache/hadoop/hbase/regionserver/TestMultiColumnScanner.java
  src/test/java/org/apache/hadoop/hbase/regionserver/TestScanDeleteTracker.java
  src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java
  src/test/java/org/apache/hadoop/hbase/regionserver/TestCompaction.java
  src/test/java/org/apache/hadoop/hbase/client/TestFromClientSide.java
  src/main/java/org/apache/hadoop/hbase/HConstants.java
  src/main/java/org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.java
  src/main/java/org/apache/hadoop/hbase/regionserver/StoreFileScanner.java
  src/main/java/org/apache/hadoop/hbase/regionserver/DeleteTracker.java
  src/main/java/org/apache/hadoop/hbase/regionserver/ScanDeleteTracker.java
  src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
  src/main/java/org/apache/hadoop/hbase/regionserver/Store.java

                
> Deletes should not mask Puts that come after it.
> ------------------------------------------------
>
>                 Key: HBASE-5241
>                 URL: https://issues.apache.org/jira/browse/HBASE-5241
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Amitanand Aiyer
>         Attachments: HBASE-5241.D1731.1.patch, HBASE-5241.D1731.2.patch
>
>
> Suppose that we have a delete row, and then followed by the put. The delete 
> row
> can mask the put, unless there was a major compaction in between.
> Now that we are flushing the memstoreTS to disk, along with the KVs, we 
> should be able
> to differentiate whether or not the Put happened after the Delete and offer 
> better 
> delete semantics.
> Couldn't find a pre-existing JIRA that already discusses this, so creating 
> one.
> Seems related to https://issues.apache.org/jira/browse/HBASE-2406, but is not 
> quite the same.

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