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Using SQOOP with MySQL as metastore

To set up MySQL for use with SQOOP:

On the SQOOP Server host, install the connector.

Install the connector

RHEL/CentOS/Oracle Linux

  yum install mysql-connector-java

SLES

  zypper install mysql-connector-java

Confirm that .jar is in the Java share directory.

  ls /usr/share/java/mysql-connector-java.jar

Make sure the .jar file has the appropriate permissions - 644.

Create a user for SQOOP and grant it permissions.

For example, using the MySQL database admin utility:

  # mysql -u root -p  

CREATE USER '<SQOOPUSER>'@'%' IDENTIFIED BY '<SQOOPPASSWORD>';  

GRANT ALL PRIVILEGES ON *.* TO '<SQOOPUSER>'@'%';  

CREATE USER '<SQOOPUSER>'@'localhost' IDENTIFIED BY '<SQOOPPASSWORD>';  

GRANT ALL PRIVILEGES ON *.* TO '<SQOOPUSER>'@'localhost';  

CREATE USER '<SQOOPUSER>'@'<SQOOPSERVERFQDN>' IDENTIFIED BY '<SQOOPPASSWORD>';  

GRANT ALL PRIVILEGES ON *.* TO '<SQOOPUSER>'@'<SQOOPSERVERFQDN>';  

FLUSH PRIVILEGES;

Where <SQOOPUSER> is the SQOOP user name, <SQOOPPASSWORD> is the SQOOP user password and <SQOOPSERVERFQDN> is the Fully Qualified Domain Name of the SQOOP Server host.

Configure the sqoop-site.xml to create the sqoop database and load the SQOOP Server database schema.

<configuration>  <property>  <name>sqoop.metastore.client.enable.autoconnect</name>  <value>true</value>  </property>  <property>  <name>sqoop.metastore.client.autoconnect.url</name>  <value>jdbc:mysql://<<MYSQLHOSTNAME>>/sqoop?createDatabaseIfNotExist=true</value>  </property>  <property>  <name>sqoop.metastore.client.autoconnect.username</name>  <value>$$SQOOPUSER$$</value>  </property>  <property>  <name>sqoop.metastore.client.autoconnect.password</name>  <value>$$$SQOOPPASSWORD$$$</value>  </property>  <property>  <name>sqoop.metastore.client.record.password</name>  <value>true</value>  </property>  <property>  <name>sqoop.metastore.server.location</name>  <value>/usr/lib/sqoop/metastore/</value>  </property>  <property>  <name>sqoop.metastore.server.port</name>  <value>16000</value>  </property>  </configuration>

execute the following command to create the initial database and tables.

      sqoop job --list

If you get any error or exception then you must pre-load the SQOOP tables with the mandatory values.

  mysql -u <SQOOPUSER> -p   USE <SQOOPDATABASE>;
  -- Inserted the following row  

INSERT INTO SQOOP_ROOT   VALUES(     NULL,     'sqoop.hsqldb.job.storage.version',     '0'  );

Where <SQOOPUSER> is the SQOOP user name and <SQOOPDATABASE> is the SQOOP database name.

execute the following command one more time, to create the all required SQOOP internal meta tables.

      sqoop job --list

Once all the necessary sqoop tables are created, then sqoop job will use the meta store for the SQOOP job execution.

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Comments
Contributor

Hi njayakumar, we have sqoop working with the mysql metastore but oozie gives errors that it can't find the driver to connect to the sqoop metastore.

Caused by: java.sql.SQLException: No suitable driver found for 'jdbc:mysql://<server>.com/sqoop'

The mysql-connector-java.jar is available in the java folder mentioned by you, also available in:

/usr/hdp/current/oozie folders libserver, libtools and lib (as symbolic link)

and for sqoop in

/usr/hdp/current/scoop/lib folder

any thoughts what we are missing here? I already got the same error trying to use the sqoop metastore 'service'. Oozie wasn't able to find that driver either...

Contributor

@Rene Sluiter - ls /usr/share/java/mysql-connector-java.jar can you check the jar in share folder ?

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‎09-11-2016 09:38 PM
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