Hi, Recently, my cluster has been manifesting this issue when the server is taken down by our administrator or he kill the nimbus, supervisor, and ui pids sometimes inadvertently.
I start to see this error when I restart my Topology after restarting nimbus, ui, and supervisor for the two nodes in the supervisor.log: 2014-11-08 22:28:08 b.s.event [ERROR] Error when processing event java.lang.NoSuchMethodError: org.apache.commons.io.FileUtils.moveDirectory(Ljava/io/File;Ljava/io/File;)V at backtype.storm.daemon.supervisor$fn__6412.invoke(supervisor.clj:438) ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating] Could it be that the apache commons-io jar file is getting corrupted? I'm really not sure what to do on this. Normally, I have to delete the data directory, the zookeeper data directory, and unzip the tar.gz distribution for storm and the error goes away. It just seems strange that the moveDirectory method would disappear. V/R Jared
