You could try adding netty.io jars <http://mvnrepository.com/artifact/io.netty/netty-all/4.0.23.Final> in the classpath. Looks like that jar is missing.
Thanks Best Regards On Thu, Dec 11, 2014 at 12:15 AM, S. Zhou <myx...@yahoo.com.invalid> wrote: > Everything worked fine on Spark 1.1.0 until we upgrade to 1.1.1. For some > of our unit tests we saw the following exceptions. Any idea how to solve > it? Thanks! > > java.lang.NoClassDefFoundError: io/netty/util/TimerTask > at > org.apache.spark.storage.BlockManager.<init>(BlockManager.scala:72) > at > org.apache.spark.storage.BlockManager.<init>(BlockManager.scala:168) > at org.apache.spark.SparkEnv$.create(SparkEnv.scala:230) > at org.apache.spark.SparkContext.<init>(SparkContext.scala:204) > at > spark.jobserver.util.DefaultSparkContextFactory.makeContext(SparkContextFactory.scala:34) > at > spark.jobserver.JobManagerActor.createContextFromConfig(JobManagerActor.scala:255) > at > spark.jobserver.JobManagerActor$$anonfun$wrappedReceive$1.applyOrElse(JobManagerActor.scala:104) > at > scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33) > at > scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33) > at > scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25) > ....... > > >
