Nandakishore Arvapaly created ZEPPELIN-2793:
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Summary: Error - java.lang.ClassNotFoundException:
org.apache.zeppelin.jdbc.JDBCInterpreter
Key: ZEPPELIN-2793
URL: https://issues.apache.org/jira/browse/ZEPPELIN-2793
Project: Zeppelin
Issue Type: Bug
Components: Interpreters, zeppelin-interpreter
Affects Versions: 0.7.2
Reporter: Nandakishore Arvapaly
My usecase includes reading data from Redshift cluster through Zeppelin.
So when I create a redshift interpreter by specifying all required Redshift
credentials and url and by placing Redshift jar in /jdbc/ directory, I could
able to connect to redshift.
But when I create a new redshift interpreter through REST API POST and use it
to new notebook, I get below error.
java.lang.ClassNotFoundException: org.apache.zeppelin.jdbc.JDBCInterpreter
java.lang.ClassNotFoundException: org.apache.zeppelin.jdbc.JDBCInterpreter
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:814)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at
org.apache.zeppelin.interpreter.InterpreterFactory.createRepl(InterpreterFactory.java:258)
at
org.apache.zeppelin.interpreter.InterpreterFactory.createInterpretersForNote(InterpreterFactory.java:206)
at
org.apache.zeppelin.interpreter.InterpreterFactory.createOrGetInterpreterList(InterpreterFactory.java:332)
at
org.apache.zeppelin.interpreter.InterpreterFactory.getInterpreter(InterpreterFactory.java:395)
at org.apache.zeppelin.notebook.Note.run(Note.java:600)
at
org.apache.zeppelin.socket.NotebookServer.persistAndExecuteSingleParagraph(NotebookServer.java:1641)
at
org.apache.zeppelin.socket.NotebookServer.runParagraph(NotebookServer.java:1615)
at
org.apache.zeppelin.socket.NotebookServer.onMessage(NotebookServer.java:265)
at
org.apache.zeppelin.socket.NotebookSocket.onWebSocketText(NotebookSocket.java:59)
at
org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextMessage(JettyListenerEventDriver.java:128)
at
org.eclipse.jetty.websocket.common.message.SimpleTextMessage.messageComplete(SimpleTextMessage.java:69)
at
org.eclipse.jetty.websocket.common.events.AbstractEventDriver.appendMessage(AbstractEventDriver.java:65)
at
org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextFrame(JettyListenerEventDriver.java:122)
at
org.eclipse.jetty.websocket.common.events.AbstractEventDriver.incomingFrame(AbstractEventDriver.java:161)
at
org.eclipse.jetty.websocket.common.WebSocketSession.incomingFrame(WebSocketSession.java:309)
at
org.eclipse.jetty.websocket.common.extensions.ExtensionStack.incomingFrame(ExtensionStack.java:214)
at
org.eclipse.jetty.websocket.common.Parser.notifyFrame(Parser.java:220)
at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:258)
at
org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.readParse(AbstractWebSocketConnection.java:632)
at
org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onFillable(AbstractWebSocketConnection.java:480)
at
org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
at java.lang.Thread.run(Thread.java:748)
___________________________________________________
I used CURL command to create new interpreter. And the JSON file has following
contents.
{
"name": "redshift1",
"group": "jdbc",
"properties": {
"default.password": "redshift-password",
"zeppelin.jdbc.auth.type": "",
"common.max_count": "1000",
"zeppelin.jdbc.principal": "",
"default.user": "redshift-user",
"default.driver": "com.amazon.redshift.jdbc42.Driver",
"default.url": "jdbc url",
"zeppelin.jdbc.keytab.location": "",
"zeppelin.jdbc.concurrent.use": "true",
"zeppelin.jdbc.concurrent.max_connection": "10",
"zeppelin.interpreter.output.limit": "102400"
},
"interpreterGroup": [{
"name": "sql",
"class": "org.apache.zeppelin.jdbc.JDBCInterpreter",
"defaultInterpreter": false,
"editor": {
"language": "sql",
"editOnDblClick": false
}
}
],
"dependencies": [
{
"groupArtifactVersion":
"com.amazonaws:aws-java-sdk-redshift:1.11.51",
"local": false
}, {
"groupArtifactVersion":
"/home/ec2-user/zeppelin-0.7.2-bin-all/interpreter/jdbc/RedshiftJDBC42-1.2.1.1001.jar",
"local": false
}
]
}
Please let me know where i'm doing it wrong.
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