Any idea why i am running into this issue, INFO [2017-05-04 22:02:24,996] ({pool-2-thread-2} SchedulerFactory.java[jobFinished]:137) - Job paragraph_1423500779206_-1502780787 finished by scheduler org.apache.zeppelin.interpreter.remote.RemoteInterpreter2A94M5J1Z256540498 INFO [2017-05-04 22:03:02,450] ({pool-2-thread-4} SchedulerFactory.java[jobStarted]:131) - Job paragraph_1423500779206_-1502780787 started by scheduler org.apache.zeppelin.interpreter.remote.RemoteInterpreter2A94M5J1Z256540498 INFO [2017-05-04 22:03:02,451] ({pool-2-thread-4} Paragraph.java[jobRun]:362) - run paragraph 20150210-015259_1403135953 using null org.apache.zeppelin.interpreter.LazyOpenInterpreter@5aa74c91 INFO [2017-05-04 22:03:02,451] ({pool-2-thread-4} RemoteInterpreterManagedProcess.java[start]:126) - Run interpreter process [/opt/zeppelin-0.7.1-bin-all/bin/interpreter.sh, -d, /opt/zeppelin-0.7.1-bin-all/interpreter/spark, -p, 37115, -u, bigdata, -l, /opt/zeppelin-0.7.1-bin-all/local-repo/2CFWU98CR] INFO [2017-05-04 22:03:02,513] ({Exec Default Executor} RemoteInterpreterManagedProcess.java[onProcessComplete]:180) - Interpreter process exited 0 ERROR [2017-05-04 22:03:02,980] ({pool-2-thread-4} Job.java[run]:188) - Job failed org.apache.zeppelin.interpreter.InterpreterException: Host key verification failed.
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterManagedProcess.start(RemoteInterpreterManagedProcess.java:143) at org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess.reference(RemoteInterpreterProcess.java:73) at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.open(RemoteInterpreter.java:258) at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.getFormType(RemoteInterpreter.java:423) at org.apache.zeppelin.interpreter.LazyOpenInterpreter.getFormType(LazyOpenInterpreter.java:106) at org.apache.zeppelin.notebook.Paragraph.jobRun(Paragraph.java:387) at org.apache.zeppelin.scheduler.Job.run(Job.java:175) at org.apache.zeppelin.scheduler.RemoteScheduler$JobRunner.run(RemoteScheduler.java:329) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:473) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) ERROR [2017-05-04 22:03:02,981] ({pool-2-thread-4} NotebookServer.java[afterStatusChange]:2050) - Error org.apache.zeppelin.interpreter.InterpreterException: Host key verification failed. at org.apache.zeppelin.interpreter.remote.RemoteInterpreterManagedProcess.start(RemoteInterpreterManagedProcess.java:143) at org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess.reference(RemoteInterpreterProcess.java:73) at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.open(RemoteInterpreter.java:258) at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.getFormType(RemoteInterpreter.java:423) at org.apache.zeppelin.interpreter.LazyOpenInterpreter.getFormType(LazyOpenInterpreter.java:106) at org.apache.zeppelin.notebook.Paragraph.jobRun(Paragraph.java:387) at org.apache.zeppelin.scheduler.Job.run(Job.java:175) at org.apache.zeppelin.scheduler.RemoteScheduler$JobRunner.run(RemoteScheduler.java:329) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:473) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) WARN [2017-05-04 22:03:02,982] ({pool-2-thread-4} NotebookServer.java[afterStatusChange]:2058) - Job 20150210-015259_1403135953 is finished, status: ERROR, exception: org.apache.zeppelin.interpreter.InterpreterException: Host key verification failed. , result: Host key verification failed. INFO [2017-05-04 22:03:03,042] ({pool-2-thread-4} SchedulerFactory.java[jobFinished]:137) - Job paragraph_1423500779206_-1502780787 finished by scheduler org.apache.zeppelin.interpreter.remote.RemoteInterpreter2A94M5J1Z256540498 Thanks, Yeshwanth Jagini