Yes you're right. Maybe make sure the jar is loaded when starting Nimbus and the package name is correct.
On Thu, May 28, 2015 at 12:40 PM, Franca van Kaam <[email protected]> wrote: > As indicated in the tutorial I put this in the storm.yaml file of the > nimbus node: > storm.scheduler: "storm.CameraScheduler" > > So my problem is that when I want to start the Nimbus, it gives me this > ClassNotFoundException. I am not even submitting the topology yet... > > > > > > On Thu, May 28, 2015 at 12:35 PM, Franca van Kaam < > [email protected]> wrote: > >> But don't you have to start up nimbus before submitting your topology? >> >> On Thu, May 28, 2015 at 12:24 PM, Ken Danniswara <[email protected]> wrote: >> >>> Hi, >>> >>> In my case I'm putting the custom scheduler in the same jar with the >>> submitted topology. I don't know if this is actually the best practice or >>> not, but it works for me. >>> >>> On Thu, May 28, 2015 at 12:10 PM, Franca van Kaam < >>> [email protected]> wrote: >>> >>>> Hello, >>>> >>>> I am trying to implement a custom scheduler as explained in >>>> http://xumingming.sinaapp.com/885/twitter-storm-how-to-develop-a-pluggable-scheduler/ >>>> . >>>> >>>> However I seem to do something wrong in the last step of the tutorial, >>>> because when I try to launch nimbus I get a ClassNotFoundException. >>>> >>>> 2015-05-28T11:39:24.499+0200 b.s.d.nimbus [INFO] Using custom >>>> scheduler: storm.CameraScheduler >>>> 2015-05-28T11:39:24.514+0200 b.s.d.nimbus [ERROR] Error on >>>> initialization of server service-handler >>>> java.lang.ClassNotFoundException: storm.CameraScheduler >>>> at java.net.URLClassLoader$1.run(URLClassLoader.java:372) ~[na:1.8.0_31] >>>> at java.net.URLClassLoader$1.run(URLClassLoader.java:361) ~[na:1.8.0_31] >>>> at java.security.AccessController.doPrivileged(Native Method) >>>> ~[na:1.8.0_31] >>>> at java.net.URLClassLoader.findClass(URLClassLoader.java:360) >>>> ~[na:1.8.0_31] >>>> at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_31] >>>> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) >>>> ~[na:1.8.0_31] >>>> at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_31] >>>> at java.lang.Class.forName0(Native Method) ~[na:1.8.0_31] >>>> at java.lang.Class.forName(Class.java:260) ~[na:1.8.0_31] >>>> at backtype.storm.util$new_instance.invoke(util.clj:946) >>>> ~[storm-core-0.9.3.jar:0.9.3] >>>> at backtype.storm.daemon.nimbus$mk_scheduler.invoke(nimbus.clj:53) >>>> ~[storm-core-0.9.3.jar:0.9.3] >>>> at backtype.storm.daemon.nimbus$nimbus_data.invoke(nimbus.clj:78) >>>> ~[storm-core-0.9.3.jar:0.9.3] >>>> at >>>> backtype.storm.daemon.nimbus$fn__5043$exec_fn__1108__auto____5044.invoke(nimbus.clj:898) >>>> ~[storm-core-0.9.3.jar:0.9.3] >>>> at clojure.lang.AFn.applyToHelper(AFn.java:163) [clojure-1.5.1.jar:na] >>>> at clojure.lang.AFn.applyTo(AFn.java:151) [clojure-1.5.1.jar:na] >>>> at clojure.core$apply.invoke(core.clj:617) ~[clojure-1.5.1.jar:na] >>>> at >>>> backtype.storm.daemon.nimbus$fn__5043$service_handler__5133.doInvoke(nimbus.clj:895) >>>> [storm-core-0.9.3.jar:0.9.3] >>>> at clojure.lang.RestFn.invoke(RestFn.java:421) [clojure-1.5.1.jar:na] >>>> at >>>> backtype.storm.daemon.nimbus$launch_server_BANG_.invoke(nimbus.clj:1152) >>>> [storm-core-0.9.3.jar:0.9.3] >>>> at backtype.storm.daemon.nimbus$_launch.invoke(nimbus.clj:1184) >>>> [storm-core-0.9.3.jar:0.9.3] >>>> at backtype.storm.daemon.nimbus$_main.invoke(nimbus.clj:1206) >>>> [storm-core-0.9.3.jar:0.9.3] >>>> at clojure.lang.AFn.applyToHelper(AFn.java:159) [clojure-1.5.1.jar:na] >>>> at clojure.lang.AFn.applyTo(AFn.java:151) [clojure-1.5.1.jar:na] >>>> at backtype.storm.daemon.nimbus.main(Unknown Source) >>>> [storm-core-0.9.3.jar:0.9.3] >>>> 2015-05-28T11:39:24.518+0200 b.s.util [ERROR] Halting process: ("Error >>>> on initialization") >>>> java.lang.RuntimeException: ("Error on initialization") >>>> at backtype.storm.util$exit_process_BANG_.doInvoke(util.clj:325) >>>> [storm-core-0.9.3.jar:0.9.3] >>>> at clojure.lang.RestFn.invoke(RestFn.java:423) [clojure-1.5.1.jar:na] >>>> at >>>> backtype.storm.daemon.nimbus$fn__5043$service_handler__5133.doInvoke(nimbus.clj:895) >>>> [storm-core-0.9.3.jar:0.9.3] >>>> at clojure.lang.RestFn.invoke(RestFn.java:421) [clojure-1.5.1.jar:na] >>>> at >>>> backtype.storm.daemon.nimbus$launch_server_BANG_.invoke(nimbus.clj:1152) >>>> [storm-core-0.9.3.jar:0.9.3] >>>> at backtype.storm.daemon.nimbus$_launch.invoke(nimbus.clj:1184) >>>> [storm-core-0.9.3.jar:0.9.3] >>>> at backtype.storm.daemon.nimbus$_main.invoke(nimbus.clj:1206) >>>> [storm-core-0.9.3.jar:0.9.3] >>>> at clojure.lang.AFn.applyToHelper(AFn.java:159) [clojure-1.5.1.jar:na] >>>> at clojure.lang.AFn.applyTo(AFn.java:151) [clojure-1.5.1.jar:na] >>>> at backtype.storm.daemon.nimbus.main(Unknown Source) >>>> [storm-core-0.9.3.jar:0.9.3] >>>> >>>> >>>> How should I package my scheduler and where exactly should I put it? >>>> At the moment what I have done is package my CameraScheduler.class in >>>> CameraScheduler.jar and add it to my $STORM_HOME/lib. But apparently >>>> this is wrong... Any help? >>>> >>> >>> >> >
