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From Naveen Madhire <vmadh...@umail.iu.edu>
Subject Sample Spark Program Error
Date Wed, 31 Dec 2014 04:26:58 GMT
Hi All,

I am trying to run a sample Spark program using Scala SBT,

Below is the program,

def main(args: Array[String]) {

      val logFile = "E:/ApacheSpark/usb/usb/spark/bin/README.md" // Should
be some file on your system
      val sc = new SparkContext("local", "Simple App",
"E:/ApacheSpark/usb/usb/spark/bin",List("target/scala-2.10/sbt2_2.10-1.0.jar"))
      val logData = sc.textFile(logFile, 2).cache()

      val numAs = logData.filter(line => line.contains("a")).count()
      val numBs = logData.filter(line => line.contains("b")).count()

      println("Lines with a: %s, Lines with b: %s".format(numAs, numBs))

    }


Below is the error log,


14/12/30 23:20:21 INFO rdd.HadoopRDD: Input split:
file:/E:/ApacheSpark/usb/usb/spark/bin/README.md:0+673
14/12/30 23:20:21 INFO storage.MemoryStore: ensureFreeSpace(2032) called
with curMem=34047, maxMem=280248975
14/12/30 23:20:21 INFO storage.MemoryStore: Block rdd_1_0 stored as values
in memory (estimated size 2032.0 B, free 267.2 MB)
14/12/30 23:20:21 INFO storage.BlockManagerInfo: Added rdd_1_0 in memory on
zealot:61452 (size: 2032.0 B, free: 267.3 MB)
14/12/30 23:20:21 INFO storage.BlockManagerMaster: Updated info of block
rdd_1_0
14/12/30 23:20:21 INFO executor.Executor: Finished task 0.0 in stage 0.0
(TID 0). 2300 bytes result sent to driver
14/12/30 23:20:21 INFO scheduler.TaskSetManager: Starting task 1.0 in stage
0.0 (TID 1, localhost, PROCESS_LOCAL, 1264 bytes)
14/12/30 23:20:21 INFO executor.Executor: Running task 1.0 in stage 0.0
(TID 1)
14/12/30 23:20:21 INFO spark.CacheManager: Partition rdd_1_1 not found,
computing it
14/12/30 23:20:21 INFO rdd.HadoopRDD: Input split:
file:/E:/ApacheSpark/usb/usb/spark/bin/README.md:673+673
14/12/30 23:20:21 INFO scheduler.TaskSetManager: Finished task 0.0 in stage
0.0 (TID 0) in 3507 ms on localhost (1/2)
14/12/30 23:20:21 INFO storage.MemoryStore: ensureFreeSpace(1912) called
with curMem=36079, maxMem=280248975
14/12/30 23:20:21 INFO storage.MemoryStore: Block rdd_1_1 stored as values
in memory (estimated size 1912.0 B, free 267.2 MB)
14/12/30 23:20:21 INFO storage.BlockManagerInfo: Added rdd_1_1 in memory on
zealot:61452 (size: 1912.0 B, free: 267.3 MB)
14/12/30 23:20:21 INFO storage.BlockManagerMaster: Updated info of block
rdd_1_1
14/12/30 23:20:21 INFO executor.Executor: Finished task 1.0 in stage 0.0
(TID 1). 2300 bytes result sent to driver
14/12/30 23:20:21 INFO scheduler.TaskSetManager: Finished task 1.0 in stage
0.0 (TID 1) in 261 ms on localhost (2/2)
14/12/30 23:20:21 INFO scheduler.TaskSchedulerImpl: Removed TaskSet 0.0,
whose tasks have all completed, from pool
14/12/30 23:20:21 INFO scheduler.DAGScheduler: Stage 0 (count at
Test1.scala:19) finished in 3.811 s
14/12/30 23:20:21 INFO spark.SparkContext: Job finished: count at
Test1.scala:19, took 3.997365232 s
14/12/30 23:20:21 INFO spark.SparkContext: Starting job: count at
Test1.scala:20
14/12/30 23:20:21 INFO scheduler.DAGScheduler: Got job 1 (count at
Test1.scala:20) with 2 output partitions (allowLocal=false)
14/12/30 23:20:21 INFO scheduler.DAGScheduler: Final stage: Stage 1(count
at Test1.scala:20)
14/12/30 23:20:21 INFO scheduler.DAGScheduler: Parents of final stage:
List()
14/12/30 23:20:21 INFO scheduler.DAGScheduler: Missing parents: List()
14/12/30 23:20:21 INFO scheduler.DAGScheduler: Submitting Stage 1
(FilteredRDD[3] at filter at Test1.scala:20), which has no missing parents
14/12/30 23:20:21 INFO storage.MemoryStore: ensureFreeSpace(2600) called
with curMem=37991, maxMem=280248975
14/12/30 23:20:21 INFO storage.MemoryStore: Block broadcast_2 stored as
values in memory (estimated size 2.5 KB, free 267.2 MB)
14/12/30 23:20:21 INFO scheduler.DAGScheduler: Submitting 2 missing tasks
from Stage 1 (FilteredRDD[3] at filter at Test1.scala:20)
14/12/30 23:20:21 INFO scheduler.TaskSchedulerImpl: Adding task set 1.0
with 2 tasks
14/12/30 23:20:21 INFO scheduler.TaskSetManager: Starting task 0.0 in stage
1.0 (TID 2, localhost, ANY, 1264 bytes)
14/12/30 23:20:21 INFO executor.Executor: Running task 0.0 in stage 1.0
(TID 2)
14/12/30 23:20:21 INFO storage.BlockManager: Found block rdd_1_0 locally
14/12/30 23:20:21 INFO executor.Executor: Finished task 0.0 in stage 1.0
(TID 2). 1731 bytes result sent to driver
14/12/30 23:20:21 INFO scheduler.TaskSetManager: Starting task 1.0 in stage
1.0 (TID 3, localhost, ANY, 1264 bytes)
14/12/30 23:20:21 INFO executor.Executor: Running task 1.0 in stage 1.0
(TID 3)
14/12/30 23:20:21 INFO storage.BlockManager: Found block rdd_1_1 locally
14/12/30 23:20:21 INFO executor.Executor: Finished task 1.0 in stage 1.0
(TID 3). 1731 bytes result sent to driver
14/12/30 23:20:21 INFO scheduler.TaskSetManager: Finished task 1.0 in stage
1.0 (TID 3) in 7 ms on localhost (1/2)
14/12/30 23:20:21 INFO scheduler.TaskSetManager: Finished task 0.0 in stage
1.0 (TID 2) in 16 ms on localhost (2/2)
14/12/30 23:20:21 INFO scheduler.DAGScheduler: Stage 1 (count at
Test1.scala:20) finished in 0.016 s
14/12/30 23:20:21 INFO scheduler.TaskSchedulerImpl: Removed TaskSet 1.0,
whose tasks have all completed, from pool
14/12/30 23:20:21 INFO spark.SparkContext: Job finished: count at
Test1.scala:20, took 0.041709824 s
Lines with a: 24, Lines with b: 15
14/12/30 23:20:21 ERROR util.Utils: Uncaught exception in thread
SparkListenerBus
java.lang.InterruptedException
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1301)
at java.util.concurrent.Semaphore.acquire(Semaphore.java:317)
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1.apply$mcV$sp(LiveListenerBus.scala:48)
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1.apply(LiveListenerBus.scala:47)
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1.apply(LiveListenerBus.scala:47)
at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1311)
[success] Total time: 12 s, completed Dec 30, 2014 11:20:21 PM
at
org.apache.spark.scheduler.LiveListenerBus$$anon$1.run(LiveListenerBus.scala:46)
14/12/30 23:20:21 ERROR spark.ContextCleaner: Error in cleaning thread
java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
at
org.apache.spark.ContextCleaner$$anonfun$org$apache$spark$ContextCleaner$$keepCleaning$1.apply$mcV$sp(ContextCleaner.scala:136)
at
org.apache.spark.ContextCleaner$$anonfun$org$apache$spark$ContextCleaner$$keepCleaning$1.apply(ContextCleaner.scala:134)
at
org.apache.spark.ContextCleaner$$anonfun$org$apache$spark$ContextCleaner$$keepCleaning$1.apply(ContextCleaner.scala:134)
at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1311)
at org.apache.spark.ContextCleaner.org
$apache$spark$ContextCleaner$$keepCleaning(ContextCleaner.scala:133)
at org.apache.spark.ContextCleaner$$anon$3.run(ContextCleaner.scala:65)
14/12/30 23:20:21 INFO network.ConnectionManager: Selector thread was
interrupted!
14/12/30 23:20:21 INFO storage.BlockManager: Removing broadcast 2
14/12/30 23:20:21 INFO storage.BlockManager: Removing block broadcast_2
14/12/30 23:20:21 INFO storage.MemoryStore: Block broadcast_2 of size 2600
dropped from memory (free 280210984)
14/12/30 23:20:21 INFO spark.ContextCleaner: Cleaned broadcast 2




Please let me know any pointers to debug the error.


Thanks a lot.

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