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Configuring HBase-Spark connector using Cloudera Manager when HBase and Spark are on the same cluster

Learn how to configure the HBase-Spark connector when both the HBase and Spark are on the same cluster.

  • If you are using the HBase-Spark3 connector, ensure that the software version is 7.1.7 SP1 Spark3 parcel or above.
  • Ensure that every Spark node has the HBase Master, Region Server, or Gateway role assigned to it. If no HBase role is assigned to a Spark node, add the HBase Gateway role to it, which ensures that the HBase configuration files are available on the Spark node. For more information, see Managing Roles.
  1. Go to the Spark or Spark3 service.
  2. Click the Configuration tab.
  3. Ensure that the HBase service is selected in Spark Service as a dependency.
  4. Select Scope > Gateway.
  5. Select Category > Advanced.
  6. Locate the Spark Client Advanced Configuration Snippet (Safety Valve) for spark-conf/spark-defaults.conf property or search for it by typing its name in the Search box.
  7. Add the following properties to ensure that all required Phoenix and HBase platform dependencies are available on the classpath for the Spark executors and drivers:
    • Spark2:
      spark.executor.extraClassPath=/opt/cloudera/parcels/CDH/lib/hbase_connectors/lib/hbase-spark.jar:/opt/cloudera/parcels/CDH/lib/hbase_connectors/lib/hbase-spark-protocol-shaded.jar:/opt/cloudera/parcels/CDH/jars/scala-library.jar
spark.driver.extraClassPath=/opt/cloudera/parcels/CDH/lib/hbase_connectors/lib/hbase-spark.jar:/opt/cloudera/parcels/CDH/lib/hbase_connectors/lib/hbase-spark-protocol-shaded.jar:/opt/cloudera/parcels/CDH/lib/hbase_connectors/lib/scala-library.jar
    • Spark3:
      spark.executor.extraClassPath=/opt/cloudera/parcels/SPARK3/lib/spark3/hbase_connectors/lib/hbase-spark3-***VERSION NUMBER***.jar:/opt/cloudera/parcels/SPARK3/lib/spark3/hbase_connectors/lib/hbase-spark3-protocol-shaded-***VERSION NUMBER***.jar
spark.driver.extraClassPath=/opt/cloudera/parcels/SPARK3/lib/spark3/hbase_connectors/lib/hbase-spark3-***VERSION NUMBER***.jar:/opt/cloudera/parcels/SPARK3/lib/spark3/hbase_connectors/lib/hbase-spark3-protocol-shaded-***VERSION NUMBER***.jar
  8. Enter a Reason for change, and then click Save Changes to commit the changes.
  9. Restart the role and service when Cloudera Manager prompts you to restart.

    Perform the following steps while using HBase RegionServer:

    Edit the HBase RegionServer configuration for running Spark Filter. Spark Filter is used when Spark SQL Where clauses are in use.
    1. In Cloudera Manager, select the HBase service.
    2. Click the Configuration tab.
    3. Search for regionserver environment.
    4. Find the RegionServer Environment Advanced Configuration Snippet (Safety Valve).
    5. Click the plus icon to add the following property:

      Key: HBASE_CLASSPATH

      Value: 
      /opt/cloudera/parcels/CDH/lib/hbase_connectors/lib/hbase-spark-***VERSION NUMBER***-198.jar:/opt/cloudera/parcels/CDH/lib/hbase_connectors/lib/hbase-spark-protocol-shaded-***VERSION NUMBER***-198.jar:/opt/cloudera/parcels/CDH/jars/scala-library-2.11.12.jar
    6. Ensure that the listed jars have the correct version number in their name.
    7. Click Save Changes.
    8. Restart the Region Server.
  • Build a Spark or Spark3 application using the dependencies that you provide when you run your application. If you follow the previous instructions, Cloudera Manager automatically configures the connector. If you have not, add the necessary parameters to the command line when running the spark-submit or spark3-submit command.
    --conf spark.executor.extraClassPath=/opt/cloudera/parcels/CDH/lib/hbase-spark-protocol-shaded.jar:/opt/cloudera/parcels/CDH/lib/hbase_connectors/lib/scala-library.jar --conf spark.driver.extraClassPath=/opt/cloudera/parcels/CDH/lib/hbase-spark-protocol-shaded.jar:/opt/cloudera/parcels/CDH/lib/hbase_connectors/lib/scala-library.jar
  • Consider the following example while using a Spark3 application.
    spark3-shell --conf spark.executor.extraClassPath=/opt/cloudera/parcels/SPARK3/lib/spark3/hbase_connectors/lib/hbase-spark3-***VERSION NUMBER***.jar:/opt/cloudera/parcels/SPARK3/lib/spark3/hbase_connectors/lib/hbase-spark3-protocol-shaded-***VERSION NUMBER***.jar:/etc/hbase/conf/ --conf spark.driver.extraClassPath=/opt/cloudera/parcels/SPARK3/lib/spark3/hbase_connectors/lib/hbase-spark3-***VERSION NUMBER***.jar:/opt/cloudera/parcels/SPARK3/lib/spark3/hbase_connectors/lib/hbase-spark3-protocol-shaded-***VERSION NUMBER***.jar:/etc/hbase/conf/