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Re: Sqoop from/to Oracle

You may want to add the option to remove the delimiters or replace the
delimiters.   That is one option.    The options are

Please see http://sqoop.apache.org/docs/1.4.4/SqoopUserGuide.html

Another option would be to use Hcatalog import.

Or if you are using Sqoop 1.4.4, can you do the following

sqoop import  --hcatalog-table schema.table --table schema.table --connect
jdbc:oracle:thin:@xxx.xxx.xxx:0000/schema --username someuser --password
somepw --split-by id_column --create-hcatalog-table

This will create a new hive/hcat table that uses RC Fieformat by default
(you can specify --storage-stanza to change it).    And you can export from
hcatalog table to the oracle table also (just change import to export and
remove the --create-hcatalog-table option).

On Thu, Oct 31, 2013 at 9:37 AM, Martin, Nick <[EMAIL PROTECTED]> wrote:

> Jarcec - I've attached the task tracker logs for one of the failed map
> tasks below. I took Venkat's suggestion and imported the data into Hive
> using the following command:
> sqoop import  --hive-import -m8 --hive-table schema.table --target-dir
> schema.table --table schema.table --connect jdbc:oracle:thin:@xxx.xxx.xxx:0000/schema
> --username someuser --password somepw --split-by id_column
> Then tried to export from Hive to Oracle using (and it popped the error):
> sqoop export  -m8 --table schema.table --export-dir /user/username/file
> --connect jdbc:oracle:thin:@xxx.xxx.xxx.com:0000/schema --username
> someuser --password somepw
> I checked the rows Sqoop said had errors but didn't see any anomalies.
> Task Tracker logs (I had to strip some of the values and replace with
> generic values, but left the data types/lengths the same):
> syslog logs
> 2013-10-31 11:45:01,054 INFO org.apache.hadoop.util.NativeCodeLoader:
> Loaded the native-hadoop library
> 2013-10-31 11:45:01,532 INFO org.apache.hadoop.util.ProcessTree: setsid
> exited with exit code 0
> 2013-10-31 11:45:01,535 INFO org.apache.hadoop.mapred.Task:  Using
> ResourceCalculatorPlugin :
> org.apache.hadoop.util.LinuxResourceCalculatorPlugin@6a0da90c
> 2013-10-31 11:45:01,671 INFO org.apache.hadoop.mapred.MapTask: Processing
> split:
> Paths:/user/UserName/table_name/part-m-00000:0+67108864,/user/UserName/table_name/part-m-00000:67108864+67108864
> 2013-10-31 11:45:15,162 INFO
> com.hadoop.compression.lzo.GPLNativeCodeLoader: Loaded native gpl library
> 2013-10-31 11:45:15,164 INFO com.hadoop.compression.lzo.LzoCodec:
> Successfully loaded & initialized native-lzo library [hadoop-lzo rev
> cf4e7cbf8ed0f0622504d008101c2729dc0c9ff3]
> 2013-10-31 11:45:15,167 WARN
> org.apache.hadoop.io.compress.snappy.LoadSnappy: Snappy native library is
> available
> 2013-10-31 11:45:15,167 INFO
> org.apache.hadoop.io.compress.snappy.LoadSnappy: Snappy native library
> loaded
> 2013-10-31 11:45:15,197 ERROR org.apache.sqoop.mapreduce.TextExportMapper:
> 2013-10-31 11:45:15,197 ERROR org.apache.sqoop.mapreduce.TextExportMapper:
> Exception raised during data export
> 2013-10-31 11:45:15,197 ERROR org.apache.sqoop.mapreduce.TextExportMapper:
> 2013-10-31 11:45:15,197 ERROR org.apache.sqoop.mapreduce.TextExportMapper:
> Exception:
> java.lang.NumberFormatException
>         at java.math.BigDecimal.<init>(BigDecimal.java:459)
>         at java.math.BigDecimal.<init>(BigDecimal.java:728)
>         at table_name.__loadFromFields(table_name.java:824)
>         at table_name.parse(table_name.java:776)
>         at
> org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:83)
>         at
> org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:39)
>         at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
>         at
> org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64)
>         at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:763)
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:363)
>         at org.apache.hadoop.mapred.Child$4.run(Child.java:255)

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