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? >
