Thank you Billie and Josh! We'll do some troubleshooting on zookeeper and see if we can isolate it on that side.
Cheers, Scott On Mon, Aug 24, 2015 at 1:18 PM, Billie Rinaldi <[email protected]> wrote: > In the meantime, I think this NPE is caused by the monitor not being able > to connect to zookeeper. So check and make sure that your zookeeper > instance is healthy and accessible by the monitor. > > On Mon, Aug 24, 2015 at 10:06 AM, Josh Elser <[email protected]> wrote: > >> Thanks to Billie who initially pointed it out, but I apparently stumbled >> onto the same issue you reported a while back and forgot since. >> >> https://issues.apache.org/jira/browse/ACCUMULO-3958 >> >> Should be fixed now. We'll probably have a 1.6.4 coming out in the near >> future which will contain the fix. >> >> Thanks a bunch for taking the time to report it! That's very much >> appreciated by all of us. >> >> Scott wrote: >> >>> Josh, >>> >>> Yes, It's 1.6.3 >>> >>> Cheers, >>> >>> Scott >>> >>> On Fri, Aug 21, 2015 at 6:28 PM, Josh Elser <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> Hi Scott, >>> >>> Are you sure you're running Accumulo 1.6.3? That line number seems >>> to imply that you're running into >>> >>> https://issues.apache.org/jira/browse/ACCUMULO-3837 >>> >>> .. but that should be fixed in 1.6.3. Can you double-check please? >>> >>> - Josh >>> >>> >>> Scott wrote: >>> >>> Hello, >>> >>> We have Accumulo 1.6.3 set up on the HortonWorks install >>> with a basic >>> cluster of one master and one tablet server. Initially >>> everything seemed >>> good but now I'm getting a NullPointerException when I go to the >>> monitor >>> web page. The logs also keep adding a message to that effect as >>> well. I >>> searched and couldn't find any posts with the same problem. I >>> went back >>> through all of the config files and made sure they conform to the >>> configuration instructions. I'm hoping someone can point me to >>> the right >>> place to look for troubleshooting. >>> >>> http://<machine-name>:50095 responds with a page that has the >>> following: >>> >>> <pre> >>> java.lang.NullPointerException >>> at >>> org.apache.accumulo.monitor.Monitor.fetchData(Monitor.java:252) >>> at >>> >>> org.apache.accumulo.monitor.servlets.BasicServlet.doGet(BasicServlet.java:59) >>> at >>> >>> org.apache.accumulo.monitor.servlets.DefaultServlet.doGet(DefaultServlet.java:101) >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:668) >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:770) >>> at >>> >>> org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684) >>> at >>> >>> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:503) >>> at >>> >>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) >>> at >>> >>> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557) >>> at >>> >>> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) >>> at >>> >>> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) >>> at >>> >>> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:429) >>> at >>> >>> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) >>> at >>> >>> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) >>> at >>> >>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) >>> at >>> >>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) >>> at org.eclipse.jetty.server.Server.handle(Server.java:370) >>> at >>> >>> org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494) >>> at >>> >>> org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:971) >>> at >>> >>> org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1033) >>> at >>> org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:644) >>> at >>> >>> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235) >>> at >>> >>> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) >>> at >>> >>> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:696) >>> at >>> >>> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:53) >>> at >>> >>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) >>> at >>> >>> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) >>> at java.lang.Thread.run(Thread.java:745) >>> </pre> >>> >>> >>> The logs are recording the following error: >>> >>> 2015-08-21 16:37:21,152 [monitor.Monitor] WARN : >>> java.lang.NullPointerException >>> at >>> org.apache.accumulo.monitor.Monitor.fetchData(Monitor.java:252) >>> at >>> org.apache.accumulo.monitor.Monitor$2.run(Monitor.java:508) >>> at >>> >>> org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34) >>> at java.lang.Thread.run(Thread.java:745) >>> >>> Thanks, >>> >>> Scott >>> >>> >>> >
