Skip to main content

This content has been archived and is no longer being updated. Links may not function; however, this content may be relevant to outdated versions of the product.

Support Article

Unable to connect to Hadoop database cluster

SA-12129

Summary



You are unable to connect to a Hadoop cluster. When you try to Test Connectivity, you see the error on screen.

Error Messages



Connection with HBase cannot be established. Please check your configuration. There are no Hadoop jars available on classpath.

2015-06-24 07:29:29,422 [ WebContainer : 8] [TABTHREAD3] [DFFW_Intake:04.27.99] (il.classloader.PRClassLoaderDB) WARN | - Invalid reference to non-public interface from class "com.pegarules.generated.activity.ra_action_pztestconnection_0ab878a2c2b57a22708f53bf46dd3107" to "com.pega.pegarules.integration.engine.internal.connect.hbase.HBaseConfig"
2015-06-24 07:29:29,427 [ WebContainer : 8] [TABTHREAD3] [DFFW_Intake:04.27.99] (il.classloader.PRClassLoaderDB) WARN | - Invalid reference to non-public interface from class "com.pegarules.generated.activity.ra_action_pztestconnection_0ab878a2c2b57a22708f53bf46dd3107" to "com.pega.pegarules.integration.engine.internal.connect.hbase.HBasePingResult"
2015-06-24 07:29:29,427 [ WebContainer : 8] [TABTHREAD3] [DFFW_Intake:04.27.99] (il.classloader.PRClassLoaderDB) WARN | - Invalid reference to non-public interface from class "com.pegarules.generated.activity.ra_action_pztestconnection_0ab878a2c2b57a22708f53bf46dd3107" to "com.pega.pegarules.integration.engine.internal.connect.hbase.HBaseClient"
2015-06-24 07:29:29,540 [ WebContainer : 8] [TABTHREAD3] [DFFW_Intake:04.27.99] (on.HadoopAuthenticationManager) ERROR |1java.lang.ClassNotFoundException: org.apache.hadoop.conf.Configuration


Steps to Reproduce



Test connectivity to a Hadoop cluster.

Root Cause



A defect in Pegasystems’ code or rules

Resolution



Connecting to a Hadoop cluster as an external database, outside of the Predictive Analytics feature in DSM,  is not supported in Pega 7.1.8 and earlier releases.

Starting with Pega 7.2.x, connecting to a Hadoop cluster as an external source is available
 only by installing relevant dependencies to the Pega Platform, as explained in this PDN Article, https://pdn.pega.com/jar-file-dependencies-hbase-and-hdfs-data-sets.

.


 
Suggest Edit

Published November 16, 2016 - Updated October 8, 2020

Did you find this content helpful? Yes No

Have a question? Get answers now.

Visit the Collaboration Center to ask questions, engage in discussions, share ideas, and help others.

We'd prefer it if you saw us at our best.

Pega Community has detected you are using a browser which may prevent you from experiencing the site as intended. To improve your experience, please update your browser.

Close Deprecation Notice
Contact us