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From "Michael Miller (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-4760) NPE on server side getting replication information for monitor
Date Mon, 08 Jan 2018 17:22:00 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-4760?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16316621#comment-16316621
] 

Michael Miller commented on ACCUMULO-4760:
------------------------------------------

No PR since it was pretty clear once I looked into it. https://github.com/apache/accumulo/commit/208cfeaf57e910683cd0215ea2f5487a98dab22b

> NPE on server side getting replication information for monitor
> --------------------------------------------------------------
>
>                 Key: ACCUMULO-4760
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-4760
>             Project: Accumulo
>          Issue Type: Bug
>          Components: monitor
>            Reporter: Christopher Tubbs
>            Assignee: Michael Miller
>              Labels: newbie
>             Fix For: 2.0.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Without actually setting up replication, I tried looking at http://localhost:9995/replication
in the monitor with the replication table both online and offline. Both seemed to have the
same problem, resulting in a server-side HTTP 500 error on http://localhost:9995/rest/replication
> {code:java}
> 017-12-08 14:34:21,661 [servlet.ServletHandler] WARN : 
> javax.servlet.ServletException: java.lang.NullPointerException
> 	at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:489)
> 	at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)
> 	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)
> 	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)
> 	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)
> 	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848)
> 	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584)
> 	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
> 	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
> 	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
> 	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
> 	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
> 	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
> 	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
> 	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
> 	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
> 	at org.eclipse.jetty.server.Server.handle(Server.java:534)
> 	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333)
> 	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
> 	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
> 	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
> 	at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
> 	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
> 	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
> 	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
> 	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
> 	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
> 	at java.lang.Thread.run(Thread.java:748)
> Caused by: java.lang.NullPointerException
> 	at org.apache.accumulo.core.client.impl.Tables.getZooCache(Tables.java:52)
> 	at org.apache.accumulo.core.client.impl.Tables.getAllTables(Tables.java:238)
> 	at org.apache.accumulo.core.client.impl.Tables.getNameToIdMap(Tables.java:279)
> 	at org.apache.accumulo.monitor.rest.replication.ReplicationResource.getReplicationInformation(ReplicationResource.java:114)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:498)
> 	at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
> 	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)
> 	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
> 	at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:205)
> 	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
> 	at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
> 	at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
> 	at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
> 	at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326)
> 	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
> 	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
> 	at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
> 	at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
> 	at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
> 	at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
> 	at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)
> 	at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)
> 	at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)
> 	... 27 more
> {code}



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