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From "Atul Paldhikar (apaldhik)" <apald...@cisco.com>
Subject Error load data using Sqoop from Oracle
Date Wed, 26 Nov 2014 07:26:07 GMT
Hi All,

I made the data load work somehow but I don't think it's the right way ! Here is what I tried
(sorry for the long email)


1.       Hadoop 2.5.1 +  sqoop-1.4.5.bin__hadoop-2.0.4-alpha : This failed with the following
error. I did see same issue asked on stackoverflow but no fix. This is most likely due to
some jar files mismatch.

Note: /tmp/sqoop-sas/compile/1ee9265317c9d91a077060f857c3e726/TEMP_ADDRESS.java uses or overrides
a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
14/11/24 23:05:43 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-sas/compile/1ee9265317c9d91a077060f857c3e726/TEMP_ADDRESS.jar
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/mapreduce/InputFormat
        at java.lang.ClassLoader.defineClass1(Native Method)



2.       Hadoop 2.5.1 +  sqoop-1.4.5.bin__hadoop-1.0.0 : This also failed with some Class
version mismatch error. So I downloaded the Hadoop_1.2.1 also and specified that as the HADOOP_MAPRED_PATH
in the Sqoop configuration (to pick up the hadoop_core.jar). This worked for both HDFS and
Hive imports from Oracle :)



However there are 2 issues

2.1   : I don't want to maintain 2 versions of Hadoop

2.2   : The imported file is not actually going on the HDFS that I have setup, instead going
on the local file system. For example when I load a file in a Hive table in "hive", it is
visible on 'hdfs://finattr-comp-dev-01:9999/apps/sas/hive/warehouse/<table> whereas
with the Sqoop import the file is landing in /apps/sas/hive/warehouse/<table>.

Thanks
- Atul

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