Hey Moon, Can you remove me from this mailing list? Thanks,
-Steven From: moon soo Lee <m...@apache.org> Reply-To: "users@zeppelin.apache.org" <users@zeppelin.apache.org> Date: Wednesday, July 19, 2017 at 5:39 PM To: "users@zeppelin.apache.org" <users@zeppelin.apache.org> Subject: Re: restarting zeppelin on EMR causing exceptions Hi, Can you try restart Zeppelin with 'zeppelin' user permission? sudo -u zeppelin /usr/lib/zeppelin/bin/zeppelin-daemon.sh restart Thanks, moon On Wed, Jul 19, 2017 at 3:21 PM Richard Xin <richardxin...@yahoo.com<mailto:richardxin...@yahoo.com>> wrote: I was doing config changes on EMR (EMR Release label:emr-5.7.0) Zeppelin (Zeppelin 0.7.2) and struggled with Zeppelin server restart, finally I was able to narrow down to the steps to reproduce below (it's reproducible for any newly created EMR if following the steps below): 1) provision a EMR cluster (1 master node + 2 core nodes) with Spark, Hadoop, hive and Zeppelin 2) ssh to the master node 3) curl http://ec2-34-209-164-132.us-west-2.compute.amazonaws.com:8890/#/ 4) sudo /usr/lib/zeppelin/bin/zeppelin-daemon.sh restart 5) do #3 again you will see errors: <h2>HTTP ERROR: 503</h2> <p>Problem accessing /. Reason: <pre> Service Unavailable</pre></p> 6) tail Zeppelin log under /var/log/zeppelin/ you will see following errors: WARN [2017-07-19 21:34:57,425] ({main} AbstractLifeCycle.java[setFailed]:212) - FAILED org.eclipse.jetty.server.Server@4ed38226: java.net.BindException: Address already in use java.net.BindException: Address already in use at sun.nio.ch.Net.bind0(Native Method) at sun.nio.ch.Net.bind(Net.java:433) at sun.nio.ch.Net.bind(Net.java:425) at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) at org.eclipse.jetty.server.ServerConnector.open(ServerConnector.java:321) at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:80) at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:236) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at org.eclipse.jetty.server.Server.doStart(Server.java:366) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at org.apache.zeppelin.server.ZeppelinServer.main(ZeppelinServer.java:189)
