Andreas Weise created ZEPPELIN-3241:
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Summary: NPE when restarting Interpreter
Key: ZEPPELIN-3241
URL: https://issues.apache.org/jira/browse/ZEPPELIN-3241
Project: Zeppelin
Issue Type: Bug
Components: zeppelin-zengine
Affects Versions: 0.8.0, 0.9.0
Reporter: Andreas Weise
We often (not always) face NPE when restarting Spark Interpreter, which runs in
scoped mode per note.
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Caused by: java.lang.NullPointerException
at org.apache.zeppelin.notebook.Paragraph.clearRuntimeInfo(Paragraph.java:732)
at
org.apache.zeppelin.socket.NotebookServer.clearParagraphRuntimeInfo(NotebookServer.java:2558)
at
org.apache.zeppelin.rest.InterpreterRestApi.restartSetting(InterpreterRestApi.java:192)
at sun.reflect.GeneratedMethodAccessor58.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
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