GitHub user sergeymazin opened a pull request: https://github.com/apache/zeppelin/pull/2350
[ZEPPELIN-2564] - LivySparkSQLInterpreter throws NullPointerException when getProgress is called ### What is this PR for? When using %livy.sql interpreter following error is logged into interpreter log: ERROR [2017-05-17 15:01:32,897] ( {pool-1-thread-1} TThreadPoolServer.java[run]:296) - Error occurred during processing of message. java.lang.NullPointerException at org.apache.zeppelin.livy.BaseLivyInterpreter.getProgress(BaseLivyInterpreter.java:178) at org.apache.zeppelin.interpreter.LazyOpenInterpreter.getProgress(LazyOpenInterpreter.java:121) at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer.getProgress(RemoteInterpreterServer.java:558) at org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Processor$getProgress.getResult(RemoteInterpreterService.java:1899) at org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Processor$getProgress.getResult(RemoteInterpreterService.java:1884) at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39) at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39) at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:285) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) and zeppelin server log: ERROR [2017-05-17 15:01:44,004] ( {JobProgressPoller, jobId=20170511-200435_1144682471} JobProgressPoller.java[run]:58) - Can not get or update progress org.apache.zeppelin.interpreter.InterpreterException: org.apache.thrift.transport.TTransportException at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.getProgress(RemoteInterpreter.java:468) at org.apache.zeppelin.interpreter.LazyOpenInterpreter.getProgress(LazyOpenInterpreter.java:121) at org.apache.zeppelin.notebook.Paragraph.progress(Paragraph.java:334) at org.apache.zeppelin.scheduler.JobProgressPoller.run(JobProgressPoller.java:55) Caused by: org.apache.thrift.transport.TTransportException at org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:132) at org.apache.thrift.transport.TTransport.readAll(TTransport.java:86) at org.apache.thrift.protocol.TBinaryProtocol.readAll(TBinaryProtocol.java:429) at org.apache.thrift.protocol.TBinaryProtocol.readI32(TBinaryProtocol.java:318) at org.apache.thrift.protocol.TBinaryProtocol.readMessageBegin(TBinaryProtocol.java:219) at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:69) at org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Client.recv_getProgress(RemoteInterpreterService.java:321) at org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Client.getProgress(RemoteInterpreterService.java:306) at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.getProgress(RemoteInterpreter.java:465) ... 3 more This happens because this.livyVersion is never assigned in LivySparkSQLInterpreter: https://github.com/apache/zeppelin/blob/master/livy/src/main/java/org/apache/zeppelin/livy/LivySparkSQLInterpreter.java#L63 ### What type of PR is it? [Bug Fix] ### Todos * [ ] - Task ### What is the Jira issue? * https://issues.apache.org/jira/browse/ZEPPELIN-2564 ### How should this be tested? New test added to verify that livyVersion is not null ### Screenshots (if appropriate) ### Questions: * Does the licenses files need update? * Is there breaking changes for older versions? * Does this needs documentation? You can merge this pull request into a Git repository by running: $ git pull https://github.com/sergeymazin/zeppelin master Alternatively you can review and apply these changes as the patch at: https://github.com/apache/zeppelin/pull/2350.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #2350 ---- ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---