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https://issues.apache.org/jira/browse/HBASE-8521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13784469#comment-13784469
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Hudson commented on HBASE-8521:
-------------------------------
FAILURE: Integrated in HBase-0.94 #1166 (See
[https://builds.apache.org/job/HBase-0.94/1166/])
HBASE-8521 Cells cannot be overwritten with bulk loaded HFiles (Jean-Marc
Spaggiari) (larsh: rev 1528592)
*
/hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/coprocessor/SecureBulkLoadClient.java
*
/hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/ipc/HRegionInterface.java
*
/hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/mapreduce/LoadIncrementalHFiles.java
*
/hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
*
/hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
*
/hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/regionserver/Store.java
*
/hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFile.java
*
/hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLog.java
*
/hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/mapreduce/TestLoadIncrementalHFiles.java
*
/hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompaction.java
*
/hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionServerBulkLoad.java
*
/hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/regionserver/TestStoreFile.java
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/hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALReplay.java
> Cells cannot be overwritten with bulk loaded HFiles
> ---------------------------------------------------
>
> Key: HBASE-8521
> URL: https://issues.apache.org/jira/browse/HBASE-8521
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.92.1
> Reporter: Jonathan Natkins
> Assignee: Jean-Marc Spaggiari
> Fix For: 0.94.13
>
> Attachments: HBASE-8521.diff, HBASE-8521-v0-0.94.patch,
> HBASE-8521-v1-0.94.patch, HBASE-8521-v2-0.94.patch, HBASE-8521-v3-0.94.patch,
> HBASE-8521-v4-0.94.patch, hfileDirs.tar.gz
>
>
> Let's say you have a pre-built HFile that contains a cell:
> ('rowkey1', 'family1', 'qual1', 1234L, 'value1')
> We bulk load this first HFile. Now, let's create a second HFile that contains
> a cell that overwrites the first:
> ('rowkey1', 'family1', 'qual1', 1234L, 'value2')
> That gets bulk loaded into the table, but the value that HBase bubbles up is
> still 'value1'.
> It seems that there's no way to overwrite a cell for a particular timestamp
> without an explicit put operation. This seems to be the case even after minor
> and major compactions happen.
> My guess is that this is pretty closely related to the sequence number work
> being done on the compaction algorithm via HBASE-7842, but I'm not sure if
> one of would fix the other.
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