All,
I am currently running NiFi 1.2.0 on a Linux(RHEL) machine. Everything was
running fine until yesterday where it started behaving weird. The UI is not at
all responsive and sometimes the page wouldn't even load. I bumped up the Java
Heap Space just to make sure I'm not overloading the system to a point where I
cannot load the UI. I looked at the nifi-bootstrap.log and it says the instance
is running
INFO [main] org.apache.nifi.bootstrap.Command Apache NiFi is currently running,
listening to Bootstrap on port 54224, PID=41602
However, in the nifi-app.log I find something interesting, the trace is as
below and I keep getting this warning almost every 5-10 seconds in the log
2017-07-05 20:00:02,032 WARN [NiFi Web
Server-16-acceptor-0@6fecd17b-ServerConnector@2222a852{SSL,[ssl,
http/1.1]}{server-name:8443}] o.eclipse.jetty.server.AbstractConnector
java.nio.channels.ClosedSelectorException: null
at sun.nio.ch.SelectorImpl.keys(SelectorImpl.java:68)
~[na:1.8.0_101]
at
org.eclipse.jetty.io.ManagedSelector.size(ManagedSelector.java:104)
~[jetty-io-9.3.9.v20160517.jar:9.3.9.v20160517]
at
org.eclipse.jetty.io.SelectorManager.chooseSelector(SelectorManager.java:190)
~[jetty-io-9.3.9.v20160517.jar:9.3.9.v20160517]
at
org.eclipse.jetty.io.SelectorManager.accept(SelectorManager.java:232)
~[jetty-io-9.3.9.v20160517.jar:9.3.9.v20160517]
at
org.eclipse.jetty.io.SelectorManager.accept(SelectorManager.java:217)
~[jetty-io-9.3.9.v20160517.jar:9.3.9.v20160517]
at
org.eclipse.jetty.server.ServerConnector.accepted(ServerConnector.java:383)
~[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517]
at
org.eclipse.jetty.server.ServerConnector.accept(ServerConnector.java:374)
~[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517]
at
org.eclipse.jetty.server.AbstractConnector$Acceptor.run(AbstractConnector.java:593)
~[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517]
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517]
at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_101]
Does anyone have similar problems in launching the UI? any help around this is
appreciated.
Thanks
Karthik
