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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-12065) Import tool is not restoring multiple DeleteFamily markers of a row
Date Wed, 01 Oct 2014 23:42:34 GMT

     [ https://issues.apache.org/jira/browse/HBASE-12065?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell resolved HBASE-12065.
------------------------------------
      Resolution: Fixed
    Hadoop Flags: Reviewed

>  Import tool is not restoring multiple DeleteFamily markers of a row
> --------------------------------------------------------------------
>
>                 Key: HBASE-12065
>                 URL: https://issues.apache.org/jira/browse/HBASE-12065
>             Project: HBase
>          Issue Type: Bug
>          Components: util
>    Affects Versions: 0.98.2
>            Reporter: Maddineni Sukumar
>            Assignee: Maddineni Sukumar
>            Priority: Minor
>             Fix For: 2.0.0, 0.98.7, 0.99.1, 0.94.25
>
>         Attachments: HBASE-12065-0.94.patch, HBASE-12065.patch, hbase-12065-fix-2.patch,
hbase-12065-fix.patch, hbase-12065-unit-test.patch
>
>
> When a row has more than one DeleteFamily markers, Import tool is not restoring all DeleteFamily
markers. 
> Scenario: Insert entries into hbase in below order
> Put Row1 with Value-A
> Delete Row1 with DeleteFamily Marker
> Put Row1 with Value-B
> Delete Row1 with DeleteFamily Marker
> Using Export tool export this data and Import it into another table, you will see below
entries
> Delete Row1 with DeleteFamily Marker
> Put Row1 with Value-B
> Put Row1 with Value-A
> One DeleteFamily marker is missing here... In Import tool, Importer.writeResult() method
we are batching all deletes into a single Delete request and pushing into hbase. Here we are
pushing only one delete family marker into hbase table.
> I tried same with normal HTable.delete command also. 
> If you pass multiple DeleteFamily markers of a row in a single Delete request to hbase
then table is maintaining only one. 
> If that is the expected  behavior of hbase then we should change logic in Import tool
to push DeleteFamily markers individually one by one.



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