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package spark
import org.scalatest.FunSuite
import scala.collection.mutable.HashMap
import akka.actor._
import akka.actor.Actor
import akka.actor.Actor._
class CacheTrackerSuite extends FunSuite {
test("CacheTrackerActor slave initialization & cache status") {
//System.setProperty("spark.master.port", "1345")
val initialSize = 2L << 20
val tracker = actorOf(new CacheTrackerActor)
tracker.start()
tracker !! SlaveCacheStarted("host001", initialSize)
assert((tracker ? GetCacheStatus).get === Seq(("host001", 2097152L, 0L)))
tracker !! StopCacheTracker
}
test("RegisterRDD") {
//System.setProperty("spark.master.port", "1345")
val initialSize = 2L << 20
val tracker = actorOf(new CacheTrackerActor)
tracker.start()
tracker !! SlaveCacheStarted("host001", initialSize)
tracker !! RegisterRDD(1, 3)
tracker !! RegisterRDD(2, 1)
assert(getCacheLocations(tracker) === Map(1 -> List(List(), List(), List()), 2 -> List(List())))
tracker !! StopCacheTracker
}
test("AddedToCache") {
//System.setProperty("spark.master.port", "1345")
val initialSize = 2L << 20
val tracker = actorOf(new CacheTrackerActor)
tracker.start()
tracker !! SlaveCacheStarted("host001", initialSize)
tracker !! RegisterRDD(1, 2)
tracker !! RegisterRDD(2, 1)
tracker !! AddedToCache(1, 0, "host001", 2L << 15)
tracker !! AddedToCache(1, 1, "host001", 2L << 11)
tracker !! AddedToCache(2, 0, "host001", 3L << 10)
assert((tracker ? GetCacheStatus).get === Seq(("host001", 2097152L, 72704L)))
assert(getCacheLocations(tracker) ===
Map(1 -> List(List("host001"), List("host001")), 2 -> List(List("host001"))))
tracker !! StopCacheTracker
}
test("DroppedFromCache") {
//System.setProperty("spark.master.port", "1345")
val initialSize = 2L << 20
val tracker = actorOf(new CacheTrackerActor)
tracker.start()
tracker !! SlaveCacheStarted("host001", initialSize)
tracker !! RegisterRDD(1, 2)
tracker !! RegisterRDD(2, 1)
tracker !! AddedToCache(1, 0, "host001", 2L << 15)
tracker !! AddedToCache(1, 1, "host001", 2L << 11)
tracker !! AddedToCache(2, 0, "host001", 3L << 10)
assert((tracker ? GetCacheStatus).get === Seq(("host001", 2097152L, 72704L)))
assert(getCacheLocations(tracker) ===
Map(1 -> List(List("host001"), List("host001")), 2 -> List(List("host001"))))
tracker !! DroppedFromCache(1, 1, "host001", 2L << 11)
assert((tracker ? GetCacheStatus).get === Seq(("host001", 2097152L, 68608L)))
assert(getCacheLocations(tracker) ===
Map(1 -> List(List("host001"),List()), 2 -> List(List("host001"))))
tracker !! StopCacheTracker
}
/**
* Helper function to get cacheLocations from CacheTracker
*/
def getCacheLocations(tracker: ActorRef) = (tracker ? GetCacheLocations).get match {
case h: HashMap[_, _] => h.asInstanceOf[HashMap[Int, Array[List[String]]]].map {
case (i, arr) => (i -> arr.toList)
}
}
}
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