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
