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Posted to dev@drill.apache.org by "Deneche A. Hakim (JIRA)" <ji...@apache.org> on 2015/09/15 21:42:45 UTC
[jira] [Created] (DRILL-3784) simple Jdbc program fails with
NoClassDefFoundError
Deneche A. Hakim created DRILL-3784:
---------------------------------------
Summary: simple Jdbc program fails with NoClassDefFoundError
Key: DRILL-3784
URL: https://issues.apache.org/jira/browse/DRILL-3784
Project: Apache Drill
Issue Type: Bug
Affects Versions: 1.2.0
Reporter: Deneche A. Hakim
Assignee: Jacques Nadeau
Priority: Blocker
I have zookeeper installed and I'm running a single drillbit.
I'm running a simple Jdbc program that uses drill-jdbc-all, and I do get the following error when trying to connect:
{noformat}
Exception in thread "main" java.lang.NoClassDefFoundError: oadd/org/codehaus/jackson/map/ObjectMapper
at oadd.org.apache.curator.x.discovery.details.JsonInstanceSerializer.<init>(JsonInstanceSerializer.java:42)
at oadd.org.apache.curator.x.discovery.ServiceDiscoveryBuilder.builder(ServiceDiscoveryBuilder.java:42)
at oadd.org.apache.drill.exec.coord.zk.ZKClusterCoordinator.getDiscovery(ZKClusterCoordinator.java:265)
at oadd.org.apache.drill.exec.coord.zk.ZKClusterCoordinator.<init>(ZKClusterCoordinator.java:103)
at oadd.org.apache.drill.exec.client.DrillClient.connect(DrillClient.java:185)
at org.apache.drill.jdbc.impl.DrillConnectionImpl.<init>(DrillConnectionImpl.java:134)
at org.apache.drill.jdbc.impl.DrillJdbc41Factory.newDrillConnection(DrillJdbc41Factory.java:66)
at org.apache.drill.jdbc.impl.DrillFactory.newConnection(DrillFactory.java:69)
at oadd.net.hydromatic.avatica.UnregisteredDriver.connect(UnregisteredDriver.java:126)
at org.apache.drill.jdbc.Driver.connect(Driver.java:72)
at java.sql.DriverManager.getConnection(DriverManager.java:571)
at java.sql.DriverManager.getConnection(DriverManager.java:233)
at SimpleJdbc.main(SimpleJdbc.java:13)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
Caused by: java.lang.ClassNotFoundException: oadd.org.codehaus.jackson.map.ObjectMapper
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 18 more
{noformat}
Using jdbc-all built right before DRILL-3589 commit works fine, so the problem seem to be related to the changes in DRILL-3589
Here is the program I'm running:
{code}
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class SimpleJdbc {
public static void main(String[] args) throws Exception {
Class.forName("org.apache.drill.jdbc.Driver").newInstance();
Connection conn = DriverManager.getConnection("jdbc:drill:");
Statement stmt = null;
ResultSet rs = null;
try {
stmt = conn.createStatement();
rs = stmt.executeQuery("SELECT employee_id FROM cp.`employee.json`");
while (rs.next()) {
System.out.println(rs.getObject(1));
}
} finally {
if (stmt != null) {
stmt.close();
}
if (rs != null) {
rs.close();
}
conn.close();
}
}
}
{code}
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