Zeppelin server not able to start

[#1]

I tried to enable zeppelin through ambari but not able to start. Any Suggestions Please

Trace :

WARN [2017-09-06 09:31:50,595] ({main} WebAppContext.java[doStart]:514) - Failed startup of context o.e.j.w.WebAppContext@534df152{/,null,null}{/usr/hdp/current/zeppelin-server/lib/zeppelin-web-0.6.0.2.5.6.0-40.war}
java.lang.IllegalStateException: Failed to delete temp dir /usr/hdp/2.5.6.0-40/zeppelin/webapps
        at org.eclipse.jetty.webapp.WebInfConfiguration.configureTempDirectory(WebInfConfiguration.java:372)
        at org.eclipse.jetty.webapp.WebInfConfiguration.resolveTempDirectory(WebInfConfiguration.java:260)
        at org.eclipse.jetty.webapp.WebInfConfiguration.preConfigure(WebInfConfiguration.java:69)
        at org.eclipse.jetty.webapp.WebAppContext.preConfigure(WebAppContext.java:468)
        at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:504)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
        at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
        at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:163)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
        at org.eclipse.jetty.server.Server.start(Server.java:387)
        at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
        at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
        at org.eclipse.jetty.server.Server.doStart(Server.java:354)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at org.apache.zeppelin.server.ZeppelinServer.main(ZeppelinServer.java:116)
 WARN [2017-09-06 09:31:50,603] ({main} AbstractLifeCycle.java[setFailed]:212) - FAILED ServerConnector@21507a04{HTTP/1.1}{0.0.0.0:9995}: 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:116)
 WARN [2017-09-06 09:31:50,603] ({main} AbstractLifeCycle.java[setFailed]:212) - FAILED org.eclipse.jetty.server.Server@6295d394: 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:116)
ERROR [2017-09-06 09:31:50,604] ({main} ZeppelinServer.java[main]:118) - Error while running jettyServer
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:116)

[root@host zeppelin]# cat zeppelin-setup.log
Zeppelin stop                                              [  OK  ]
Zeppelin start                                             [  OK  ]
Zeppelin process died                                      [FAILED]

[#2 · Accepted solution]

@ Sam Red

The error usually means that the port you are trying to open is being already used by another application try using netstat to see which ports are open and then use an available port.

# netstat -nlp|grep 9995 

Then look for the zeppelin port look for the PID second from left after java eg 19782

# lsof -n -i :9995 | grep LISTEN 
java 19782 zeppelin 187u IPv6 294077 0t0 TCP *:palace-4 (LISTEN) 

Validate the PID

# fuser -v -n tcp 9995 

Look for the PID, then kill the process

# kill -9 {PID} 

Now restart zeppelin it should bind

[#3]

@Geoffrey Shelton Okot

Resolved. Thank You.