I went back and rebuilt 0.7.2 and it seems that the issue has gone away. Not sure what changed or which setting could have been causing the issue with socket connections.
> On Oct 18, 2017, at 10:40 AM, Michael Segel <msegel_had...@hotmail.com> wrote: > > The error: > ERROR [2017-10-18 00:00:00,003] ({pool-2-thread-20} Job.java[run]:188) - Job > failed > org.apache.zeppelin.interpreter.InterpreterException: > org.apache.zeppelin.interpreter.InterpreterException: > org.apache.thrift.transport.TTransportException: java.net.ConnectException: > Connection refused (Connection refused) > at > org.apache.zeppelin.interpreter.remote.RemoteInterpreter.interpret(RemoteInterpreter.java:354) > at > org.apache.zeppelin.interpreter.LazyOpenInterpreter.interpret(LazyOpenInterpreter.java:97) > at org.apache.zeppelin.notebook.Paragraph.jobRun(Paragraph.java:406) > 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:511) > at java.util.concurrent.FutureTask.run(FutureTask.java:266) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) > at java.lang.Thread.run(Thread.java:748) > > And this in the zeppelin spark interpreter log: > ERROR [2017-10-18 10:39:29,582] ({BoneCP-pool-watch-thread} > PoolWatchThread.java[fillConnections]:118) - Error in trying to obtain a > connection. Retrying in 7000ms > java.sql.SQLException: A read-only user or a user in a read-only database is > not permitted to disable read-only mode on a connection. > at > org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown > Source) > at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown > Source) > at > org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown > Source) > at > org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown > Source) > at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown > Source) > at org.apache.derby.impl.jdbc.EmbedConnection.setReadOnly(Unknown > Source) > at > com.jolbox.bonecp.ConnectionHandle.setReadOnly(ConnectionHandle.java:1324) > at com.jolbox.bonecp.ConnectionHandle.<init>(ConnectionHandle.java:262) > at > com.jolbox.bonecp.PoolWatchThread.fillConnections(PoolWatchThread.java:115) > at com.jolbox.bonecp.PoolWatchThread.run(PoolWatchThread.java:82) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) > at java.lang.Thread.run(Thread.java:748) > Caused by: java.sql.SQLException: A read-only user or a user in a read-only > database is not permitted to disable read-only mode on a connection. > at > org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source) > > >> On Oct 18, 2017, at 10:36 AM, Michael Segel <msegel_had...@hotmail.com> >> wrote: >> >> Hi, >> >> I’m running 7.2 compiled against MapR 5.2 >> >> I have nginx in front of Zeppelin so I run zeppelin on the local host port >> and use nginx as a proxy w ssh. >> >> After running zeppelin for approximately 24 hours, if I login and try to run >> a paragraph in any notebook, I get a java error, connection refused. >> >> Even trying to restart the interpreter (any interpreter results in a >> failure.) >> >> I’m going to assume its human error on setting up the configuration. >> >> Any suggestions? >> >> Thx >> >> -Mike >> >