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https://reviews.apache.org/r/23438/
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Review request for hive.


Bugs: HIVE-4765
    https://issues.apache.org/jira/browse/HIVE-4765


Repository: hive-git


Description
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With some patches, bulk loading process for HBase could be simplified a lot.
{noformat}
CREATE EXTERNAL TABLE hbase_export(rowkey STRING, col1 STRING, col2 STRING)
ROW FORMAT SERDE 'org.apache.hadoop.hive.hbase.HBaseExportSerDe'
WITH SERDEPROPERTIES ("hbase.columns.mapping" = ":key,cf1:key,cf2:value")
STORED AS
  INPUTFORMAT 'org.apache.hadoop.mapred.TextInputFormat'
  OUTPUTFORMAT 'org.apache.hadoop.hive.hbase.HiveHFileExporter'
LOCATION '/tmp/export';

SET mapred.reduce.tasks=4;
set hive.optimize.sampling.orderby=true;

INSERT OVERWRITE TABLE hbase_export
SELECT * from (SELECT union_kv(key,key,value,":key,cf1:key,cf2:value") as 
(rowkey,union) FROM src) A ORDER BY rowkey,union;

hive> !hadoop fs -lsr /tmp/export;                                              
                                            
drwxr-xr-x   - navis supergroup          0 2013-06-20 11:05 /tmp/export/cf1
-rw-r--r--   1 navis supergroup       4317 2013-06-20 11:05 
/tmp/export/cf1/384abe795e1a471cac6d3770ee38e835
-rw-r--r--   1 navis supergroup       5868 2013-06-20 11:05 
/tmp/export/cf1/b8b6d746c48f4d12a4cf1a2077a28a2d
-rw-r--r--   1 navis supergroup       5214 2013-06-20 11:05 
/tmp/export/cf1/c8be8117a1734bd68a74338dfc4180f8
-rw-r--r--   1 navis supergroup       4290 2013-06-20 11:05 
/tmp/export/cf1/ce41f5b1cfdc4722be25207fc59a9f10
drwxr-xr-x   - navis supergroup          0 2013-06-20 11:05 /tmp/export/cf2
-rw-r--r--   1 navis supergroup       6744 2013-06-20 11:05 
/tmp/export/cf2/409673b517d94e16920e445d07710f52
-rw-r--r--   1 navis supergroup       4975 2013-06-20 11:05 
/tmp/export/cf2/96af002a6b9f4ebd976ecd83c99c8d7e
-rw-r--r--   1 navis supergroup       6096 2013-06-20 11:05 
/tmp/export/cf2/c4f696587c5e42ee9341d476876a3db4
-rw-r--r--   1 navis supergroup       4890 2013-06-20 11:05 
/tmp/export/cf2/fd9adc9e982f4fe38c8d62f9a44854ba

hbase org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles /tmp/export test
{noformat}


Diffs
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  hbase-handler/build.xml PRE-CREATION 
  hbase-handler/src/java/org/apache/hadoop/hive/hbase/ColumnMappings.java 
9cae5d3 
  
hbase-handler/src/java/org/apache/hadoop/hive/hbase/DefaultHBaseKeyFactory.java 
5731e45 
  hbase-handler/src/java/org/apache/hadoop/hive/hbase/HBaseExportSerDe.java 
PRE-CREATION 
  hbase-handler/src/java/org/apache/hadoop/hive/hbase/HBaseRowSerializer.java 
fe6081e 
  hbase-handler/src/java/org/apache/hadoop/hive/hbase/HBaseSerDe.java 6c1ce5c 
  hbase-handler/src/java/org/apache/hadoop/hive/hbase/HiveHFileExporter.java 
PRE-CREATION 
  hbase-handler/src/test/queries/positive/hbase_bulk2.m PRE-CREATION 
  hbase-handler/src/test/results/positive/hbase_bulk2.m.out PRE-CREATION 
  itests/qtest/pom.xml 249956f 
  ql/src/java/org/apache/hadoop/hive/ql/exec/FunctionRegistry.java a80feb9 
  ql/src/java/org/apache/hadoop/hive/ql/io/HiveOutputCommitter.java 
PRE-CREATION 
  ql/src/java/org/apache/hadoop/hive/ql/metadata/Hive.java fea1e47 
  ql/src/java/org/apache/hadoop/hive/ql/udf/generic/HFileKeyValue.java 
PRE-CREATION 
  
serde/src/java/org/apache/hadoop/hive/serde2/lazybinary/LazyBinaryFactory.java 
cae4faa 
  serde/src/java/org/apache/hadoop/hive/serde2/lazybinary/LazyBinarySerDe.java 
1c8f795 
  serde/src/java/org/apache/hadoop/hive/serde2/lazybinary/LazyBinaryUnion.java 
PRE-CREATION 
  
serde/src/java/org/apache/hadoop/hive/serde2/lazybinary/LazyBinaryUnionObjectInspector.java
 PRE-CREATION 
  serde/src/java/org/apache/hadoop/hive/serde2/lazybinary/LazyBinaryUtils.java 
f7cfb36 
  
serde/src/java/org/apache/hadoop/hive/serde2/lazybinary/objectinspector/LazyBinaryObjectInspectorFactory.java
 b3ec24d 

Diff: https://reviews.apache.org/r/23438/diff/


Testing
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Thanks,

Navis Ryu

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