Maddineni Sukumar created HBASE-12065:
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Summary: 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
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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