Hi,

One of configuration value in your conf/zeppelin-env.sh or
conf/zeppelin-site.xml seems "false" which expected to be to a number.

Do you have any environment variable or property set to "false" for the
configurations below?

ZEPPELIN_PORT, zeppelin.server.port
ZEPPELIN_SSL_PORT, zeppelin.server.ssl.port
ZEPPELIN_INTERPRETER_CONNECT_TIMEOUT, zeppelin.interpreter.connect.timeout
ZEPPELIN_INTERPRETER_MAX_POOL_SIZE, zeppelin.interpreter.max.poolsize
ZEPPELIN_INTERPRETER_OUTPUT_LIMIT, zeppelin.interpreter.output.limit

Thanks,
moon

On Fri, Aug 18, 2017 at 2:30 PM Paul Brenner <pbren...@placeiq.com> wrote:

> We have a team of 5 users who all use the same zeppelin server. Lately a
> few times we have run into a case where zeppelin notes stop responding and
> then when we try refreshing the webpage for the note all that loads is the
> zeppelin header with no note. When I look at the logs I see:
>  INFO [2017-08-18 21:23:06,569] ({qtp1286783232-14114}
> NotebookServer.java[sendNote]:705) - New operation from 10.201.12.26 :
> 55178 : nshah : GET_NOTE : 2CR2ANDEX
>  INFO [2017-08-18 21:24:05,740] ({qtp1286783232-14115}
> NotebookServer.java[onClose]:363) - Closed connection to 10.201.12.22 :
> 57366. (1001) Idle Timeout
>  INFO [2017-08-18 21:24:08,084] ({qtp1286783232-14121}
> NotebookServer.java[onClose]:363) - Closed connection to 10.201.12.22 :
> 57461. (1001) Idle Timeout
>  INFO [2017-08-18 21:25:10,133] ({qtp1286783232-14122}
> AuthorizingRealm.java[getAuthorizationCacheLazy]:248) - No cache or
> cacheManager properties have been set.  Authorization cache cannot be
> obtained.
>  INFO [2017-08-18 21:25:10,157] ({qtp1286783232-14122}
> AuthorizingRealm.java[getAuthorizationCacheLazy]:248) - No cache or
> cacheManager properties have been set.  Authorization cache cannot be
> obtained.
>  INFO [2017-08-18 21:25:10,172] ({qtp1286783232-14122}
> AuthorizingRealm.java[getAuthorizationCacheLazy]:248) - No cache or
> cacheManager properties have been set.  Authorization cache cannot be
> obtained.
>  WARN [2017-08-18 21:25:10,192] ({qtp1286783232-14122}
> SecurityRestApi.java[ticket]:87) -
> {"status":"OK","message":"","body":{"principal":"pbrenner","ticket":"5f717a1a-46df-4178-bc9a-690f66064d0e","roles":"[]"}}
>  INFO [2017-08-18 21:25:10,252] ({qtp1286783232-14123}
> NotebookServer.java[onOpen]:156) - New connection from 10.201.12.48 : 62413
> ERROR [2017-08-18 21:25:10,353] ({qtp1286783232-14122}
> NotebookServer.java[onMessage]:357) - Can't handle message
> java.lang.NumberFormatException: For input string: "false"
> at
> java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
> at java.lang.Integer.parseInt(Integer.java:580)
> at java.lang.Integer.parseInt(Integer.java:615)
> at
> org.apache.zeppelin.conf.ZeppelinConfiguration.getInt(ZeppelinConfiguration.java:213)
> at
> org.apache.zeppelin.conf.ZeppelinConfiguration.getInt(ZeppelinConfiguration.java:208)
> at
> org.apache.zeppelin.conf.ZeppelinConfiguration.dumpConfigurations(ZeppelinConfiguration.java:496)
> at
> org.apache.zeppelin.socket.NotebookServer.sendAllConfigurations(NotebookServer.java:1680)
> at
> org.apache.zeppelin.socket.NotebookServer.onMessage(NotebookServer.java:318)
> at
> org.apache.zeppelin.socket.NotebookSocket.onWebSocketText(NotebookSocket.java:59)
> at
> org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextMessage(JettyListenerEventDriver.java:128)
> at
> org.eclipse.jetty.websocket.common.message.SimpleTextMessage.messageComplete(SimpleTextMessage.java:69)
> at
> org.eclipse.jetty.websocket.common.events.AbstractEventDriver.appendMessage(AbstractEventDriver.java:65)
> at
> org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextFrame(JettyListenerEventDriver.java:122)
> at
> org.eclipse.jetty.websocket.common.events.AbstractEventDriver.incomingFrame(AbstractEventDriver.java:161)
> at
> org.eclipse.jetty.websocket.common.WebSocketSession.incomingFrame(WebSocketSession.java:309)
> at
> org.eclipse.jetty.websocket.common.extensions.ExtensionStack.incomingFrame(ExtensionStack.java:214)
> at org.eclipse.jetty.websocket.common.Parser.notifyFrame(Parser.java:220)
> at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:258)
> at
> org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.readParse(AbstractWebSocketConnection.java:632)
> at
> org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onFillable(AbstractWebSocketConnection.java:480)
> at
> org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
> at java.lang.Thread.run(Thread.java:745)
>
> Anyone have any idea what is going on or how we could trouble shoot?
>
> <http://www.placeiq.com/> <http://www.placeiq.com/>
> <http://www.placeiq.com/> Paul Brenner <https://twitter.com/placeiq>
> <https://twitter.com/placeiq> <https://twitter.com/placeiq>
> <https://www.facebook.com/PlaceIQ> <https://www.facebook.com/PlaceIQ>
> <https://www.linkedin.com/company/placeiq>
> <https://www.linkedin.com/company/placeiq>
> DATA SCIENTIST
> *(217) 390-3033 <(217)%20390-3033> *
>
> <http://www.placeiq.com/2015/05/26/placeiq-named-winner-of-prestigious-2015-oracle-data-cloud-activate-award/>
> <http://placeiq.com/2015/12/18/accuracy-vs-precision-in-location-data-mma-webinar/>
> <http://placeiq.com/2015/12/18/accuracy-vs-precision-in-location-data-mma-webinar/>
> <http://placeiq.com/2015/12/18/accuracy-vs-precision-in-location-data-mma-webinar/>
> <http://placeiq.com/2015/12/18/accuracy-vs-precision-in-location-data-mma-webinar/>
> <http://placeiq.com/2016/03/08/measuring-addressable-tv-campaigns-is-now-possible/>
> <http://placeiq.com/2016/04/13/placeiq-joins-the-network-advertising-initiative-nai-as-100th-member/>
> <http://placeiq.com/2016/04/13/placeiq-joins-the-network-advertising-initiative-nai-as-100th-member/>
> <http://placeiq.com/2016/04/13/placeiq-joins-the-network-advertising-initiative-nai-as-100th-member/>
> <http://placeiq.com/2016/04/13/placeiq-joins-the-network-advertising-initiative-nai-as-100th-member/>
> <http://placeiq.com/2016/04/13/placeiq-joins-the-network-advertising-initiative-nai-as-100th-member/>
> <http://pages.placeiq.com/Location-Data-Accuracy-Whitepaper-Download.html?utm_source=Signature&utm_medium=Email&utm_campaign=AccuracyWP>
> <http://placeiq.com/2016/08/03/placeiq-bolsters-location-intelligence-platform-with-mastercard-insights/>
> <http://placeiq.com/2016/10/26/the-making-of-a-location-data-industry-milestone/>
> <http://placeiq.com/2016/12/07/placeiq-introduces-landmark-a-groundbreaking-offering-that-delivers-access-to-the-highest-quality-location-data-for-insights-that-fuel-limitless-business-decisions/>
> <http://placeiq.com/2016/12/07/placeiq-introduces-landmark-a-groundbreaking-offering-that-delivers-access-to-the-highest-quality-location-data-for-insights-that-fuel-limitless-business-decisions/>[image:
> PlaceIQ:Landmark by PlaceIQ]
> <https://www.placeiq.com/2017/05/placeiqs-landmark-powers-location-based-insight-innovation-for-ansible-gstv-havas-media-the-media-kitchen-and-more/>
>

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