[ https://issues.apache.org/jira/browse/DRILL-5702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16274992#comment-16274992 ]
Kunal Khatua commented on DRILL-5702: ------------------------------------- Can you share the details of the platform? Namely, the OS and the underlying Hadoop version on which you are deploying this? > Jdbc Driver Class not found > --------------------------- > > Key: DRILL-5702 > URL: https://issues.apache.org/jira/browse/DRILL-5702 > Project: Apache Drill > Issue Type: Bug > Components: Client - JDBC > Affects Versions: 1.11.0 > Reporter: Holger Kiel > Priority: Critical > > Cannot connect to drill cluster after upgrade to new Jar > drill-jdbc-all-1.11.0.jar. When replacing Jar file with older release > drill-jdbc-all-1.10.0.jar, connection works again. Tested with various client > applications: > {code} > java.lang.RuntimeException: java.lang.RuntimeException: > java.lang.ClassNotFoundException: Class > ${package.namespace.prefix}org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback > not found > at > oadd.org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2227) > at oadd.org.apache.hadoop.security.Groups.<init>(Groups.java:80) > at oadd.org.apache.hadoop.security.Groups.<init>(Groups.java:74) > at > oadd.org.apache.hadoop.security.Groups.getUserToGroupsMappingService(Groups.java:303) > at > oadd.org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:283) > at > oadd.org.apache.hadoop.security.UserGroupInformation.setConfiguration(UserGroupInformation.java:311) > at > oadd.org.apache.drill.exec.rpc.security.plain.PlainFactory.createAndLoginUser(PlainFactory.java:63) > at > oadd.org.apache.drill.exec.rpc.user.UserClient.authenticate(UserClient.java:244) > at > oadd.org.apache.drill.exec.rpc.user.UserClient.connect(UserClient.java:171) > at > oadd.org.apache.drill.exec.client.DrillClient.connect(DrillClient.java:432) > at > oadd.org.apache.drill.exec.client.DrillClient.connect(DrillClient.java:379) > at > org.apache.drill.jdbc.impl.DrillConnectionImpl.<init>(DrillConnectionImpl.java:158) > at > org.apache.drill.jdbc.impl.DrillJdbc41Factory.newDrillConnection(DrillJdbc41Factory.java:72) > at > org.apache.drill.jdbc.impl.DrillFactory.newConnection(DrillFactory.java:69) > at > oadd.org.apache.calcite.avatica.UnregisteredDriver.connect(UnregisteredDriver.java:143) > at org.apache.drill.jdbc.Driver.connect(Driver.java:72) > at java.sql.DriverManager.getConnection(DriverManager.java:664) > at java.sql.DriverManager.getConnection(DriverManager.java:208) > {code} > Workaround is using the old driver version. -- This message was sent by Atlassian JIRA (v6.4.14#64029)