sqoop - Use Sqoop to copy an Oracle table to Hadoop - apache sqoop - sqoop tutorial - sqoop hadoop


Use Sqoop to copy an Oracle table to Hadoop

  • Step 1) Get the Oracle JDBC driver 
    • sudo su -
cd /var/lib/sqoop
curl -L https://pkothuri.web.cern.ch/pkothuri/ojdbc6.jar -o ojdbc.jar
exit
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  • Step 2) Run the sqoop job 
    • sqoop import \
--connect jdbc:oracle:thin:@devdb11-s.cern.ch:10121/devdb11_s.cern.ch \
--username hadoop_tutorial \
-P \
--num-mappers 1 \
--target-dir visitcount_rfidlog \
--table VISITCOUNT.RFIDLOG
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    Use Sqoop to copy an Oracle table to Hadoop, multiple mappers

  • Step 1: Use Sqoop to copy an Oracle table to Hadoop, multiple mappers 
    • sqoop import \
--connect jdbc:oracle:thin:@devdb11-s.cern.ch:10121/devdb11_s.cern.ch \
--username hadoop_tutorial \
-P \
--num-mappers 2 \
--split-by alarm_id \
--target-dir lemontest_alarms \
--table LEMONTEST.ALARMS \
--as-parquetfile
  • Step 2: Check the size and number of files 
    • hdfs dfs -ls lemontest_alarms/

    SQOOP forum

    Sqoop Installation and Download :

    Connecting Sqoop to other databases/datastores :

  • Import data directly into Hive Warehouse
  • Import data from RDBMS to HBase table
  • Import data to new catalog
  • Import the results of a query from a relational database into HDFS
  • Load JDBC Driver

    • Sqoop Export :

  • Sqoop Export basic example

    • Sqoop Import RDBMS Table to HDFS :

  • Sqoop Import RDBMS Table to HDFS

    • Merge data-sets imported via incremental import using Sqoop :

  • Import New as well as Updated Data - lastmodified mode - Append Mode

    • Hadoop with Kite SDK :

  • Kite SDK to demonstrate copying of various file formats to Hadoop

    • Sqoop Advanced :

  • Use Sqoop to copy an Oracle table to Hadoop

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