[ZEPPELIN-2506] "Interpreter null not found" when a note is not bound to any interpreters

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.7.1, 0.7.2, 0.8.0
• Labels: binding interpreter newbie ui
• Assignee: Unassigned
• Reporter: Ruslan Dautkhanov
• Created: 05/May/17 05:32
• Updated: 30/Aug/17 03:05

Description

When we setup a new user or upgrade a note, interpreter.json file is copied from a template file. So "interpreterBindings" is empty or irrelevant to notes that an upgraded user has. It causes following exception:

org.apache.zeppelin.interpreter.InterpreterException: paragraph_1491878547585_-790720711's Interpreter null not found
	at org.apache.zeppelin.notebook.Note.run(Note.java:625)
	at org.apache.zeppelin.socket.NotebookServer.persistAndExecuteSingleParagraph(NotebookServer.java:1781)
	at org.apache.zeppelin.socket.NotebookServer.runParagraph(NotebookServer.java:1741)
	at org.apache.zeppelin.socket.NotebookServer.onMessage(NotebookServer.java:288)

It would be better to show error message that the note is not bound to any notes, and not let execute any paragraphs until this is fixed.

If a paragraph has an explicit interpreter type defined, then this error is slightly different but this does not change the matter

paragraph_1491878547585_-790720711's Interpreter pyspark not found
org.apache.zeppelin.interpreter.InterpreterException: paragraph_1491878547585_-790720711's Interpreter pyspark not found
	at org.apache.zeppelin.notebook.Note.run(Note.java:625)
	at org.apache.zeppelin.socket.NotebookServer.persistAndExecuteSingleParagraph(NotebookServer.java:1781)
	at org.apache.zeppelin.socket.NotebookServer.runParagraph(NotebookServer.java:1741)
	at org.apache.zeppelin.socket.NotebookServer.onMessage(NotebookServer.java:288)
	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:745)