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From "Navis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-4765) Improve HBase bulk loading facility
Date Mon, 14 Jul 2014 02:09:04 GMT

     [ https://issues.apache.org/jira/browse/HIVE-4765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Navis updated HIVE-4765:
------------------------

    Attachment: HIVE-4765.3.patch.txt

> Improve HBase bulk loading facility
> -----------------------------------
>
>                 Key: HIVE-4765
>                 URL: https://issues.apache.org/jira/browse/HIVE-4765
>             Project: Hive
>          Issue Type: Improvement
>          Components: HBase Handler
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Minor
>         Attachments: HIVE-4765.2.patch.txt, HIVE-4765.3.patch.txt, HIVE-4765.D11463.1.patch
>
>
> 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}



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