java.lang.NoClassDefFoundError: Could not initialize class - spark/scala - scala

Question

I am new to spark/scala development. I am using maven to build my project and IDE is intelliJ. I am trying to query a hive table and then iterate over the resulting dataframe(using foreach). Here's my code:
try{
val DF_1 = hiveContext.sql("select distinct(address) from
test_table where trim(address)!=''")
println("number of rows: "+DF_1.count)
DF_1.foreach(x => {
val y =hiveContext.sql("select place from test_table where address='"+x(0).toString+"'")
if(y.count > 1){
println("Multiple place values for address: "+x(0).toString)
y.foreach(r => println(r))
println("*************")
}
})}
catch {case e: Exception => e.printStackTrace()}
With each iteration, I am Querying the same table to get another column, trying to see if there are multiple values of places for each address in test_table. I have no compilation errors and the application builds successfully. But, when I run the above code, I get the following error:
java.lang.NoClassDefFoundError: Could not initialize class xxxxxxxx
the application launches successfully, prints the count of rows in DF_1 and then fails with the above error at the foreach loop. I did a jar xvf on my jar and can see the main class - driver.class:
com/.../driver$$anonfun$1$$anonfun$apply$1.class
com/.../driver$$anonfun$1.class
com/.../driver$$anonfun$2.class
com/.../driver$$anonfun$3.class
com/.../driver$$anonfun$4.class
com/.../driver$$anonfun$5.class
com/.../driver$$anonfun$main$1$$anonfun$apply$1.class
com/.../driver$$anonfun$main$1$$anonfun$apply$2.class
com/.../driver$$anonfun$main$1$$anonfun$apply$3.class
com/.../driver$$anonfun$main$1.class
com/.../driver$$anonfun$main$10$$anonfun$apply$9.class
com/.../driver$$anonfun$main$10.class
com/.../driver$$anonfun$main$11.class
com/.../driver$$anonfun$main$12.class
com/.../driver$$anonfun$main$13.class
com/.../driver$$anonfun$main$14.class
com/.../driver$$anonfun$main$15.class
com/.../driver$$anonfun$main$16.class
com/.../driver$$anonfun$main$17.class
com/.../driver$$anonfun$main$18.class
com/.../driver$$anonfun$main$19.class
com/.../driver$$anonfun$main$2$$anonfun$apply$4.class
com/.../driver$$anonfun$main$2$$anonfun$apply$5.class
com/.../driver$$anonfun$main$2$$anonfun$apply$6.class
com/.../driver$$anonfun$main$2.class
com/.../driver$$anonfun$main$20.class
com/.../driver$$anonfun$main$21.class
com/.../driver$$anonfun$main$22.class
com/.../driver$$anonfun$main$23.class
com/.../driver$$anonfun$main$3$$anonfun$apply$7.class
com/.../driver$$anonfun$main$3$$anonfun$apply$8.class
com/.../driver$$anonfun$main$3.class
com/.../driver$$anonfun$main$4$$anonfun$apply$9.class
com/.../driver$$anonfun$main$4.class
com/.../driver$$anonfun$main$5.class
com/.../driver$$anonfun$main$6$$anonfun$apply$1.class
com/.../driver$$anonfun$main$6$$anonfun$apply$2.class
com/.../driver$$anonfun$main$6$$anonfun$apply$3.class
com/.../driver$$anonfun$main$6$$anonfun$apply$4.class
com/.../driver$$anonfun$main$6$$anonfun$apply$5.class
com/.../driver$$anonfun$main$6.class
com/.../driver$$anonfun$main$7$$anonfun$apply$1.class
com/.../driver$$anonfun$main$7$$anonfun$apply$2.class
com/.../driver$$anonfun$main$7$$anonfun$apply$3.class
com/.../driver$$anonfun$main$7$$anonfun$apply$4.class
com/.../driver$$anonfun$main$7$$anonfun$apply$5.class
com/.../driver$$anonfun$main$7$$anonfun$apply$6.class
com/.../driver$$anonfun$main$7$$anonfun$apply$7.class
com/.../driver$$anonfun$main$7$$anonfun$apply$8.class
com/.../driver$$anonfun$main$7.class
com/.../driver$$anonfun$main$8$$anonfun$apply$10.class
com/.../driver$$anonfun$main$8$$anonfun$apply$4.class
com/.../driver$$anonfun$main$8$$anonfun$apply$5.class
com/.../driver$$anonfun$main$8$$anonfun$apply$6.class
com/.../driver$$anonfun$main$8$$anonfun$apply$7.class
com/.../driver$$anonfun$main$8$$anonfun$apply$8.class
com/.../driver$$anonfun$main$8$$anonfun$apply$9.class
com/.../driver$$anonfun$main$8.class
com/.../driver$$anonfun$main$9$$anonfun$apply$11.class
com/.../driver$$anonfun$main$9$$anonfun$apply$7.class
com/.../driver$$anonfun$main$9$$anonfun$apply$8.class
com/.../driver$$anonfun$main$9$$anonfun$apply$9.class
com/.../driver$$anonfun$main$9.class
com/.../driver$.class
com/.../driver.class
I am not facing the error when I launch the job in local mode instead of yarn. What is causing the issue and how can it be corrected?
Any help would be appreciated, Thank you.

Answer 1

Looks like your your jar or some dependencies aren't distributed between worker nodes. In local mode it works because you have the jars in the place. In yarn mode you need to build a fat-jar with all dependencies include hive and spark libraries in it.