[jira] [Created] (SPARK-25827) Replicating a block > 2gb with encryption fails

["Imran Rashid (JIRA)" <ji...@apache.org>]

Imran Rashid created SPARK-25827:
------------------------------------

             Summary: Replicating a block > 2gb with encryption fails
                 Key: SPARK-25827
                 URL: https://issues.apache.org/jira/browse/SPARK-25827
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 2.4.0
            Reporter: Imran Rashid


When replicating large blocks with encryption, we try to allocate an array of size {{Int.MaxValue}} which is just a bit too big for the JVM.  This is basically the same as SPARK-25704, just another case.

In DiskStore:
{code}
val chunkSize = math.min(remaining, Int.MaxValue)
{code}

{noformat}
18/10/22 17:04:06 WARN storage.BlockManager: Failed to replicate rdd_1_1 to ..., failure #0
org.apache.spark.SparkException: Exception thrown in awaitResult: 
	at org.apache.spark.util.ThreadUtils$.awaitResult(ThreadUtils.scala:226)
	at org.apache.spark.network.BlockTransferService.uploadBlockSync(BlockTransferService.scala:133)
	at org.apache.spark.storage.BlockManager.org$apache$spark$storage$BlockManager$$replicate(BlockManager.scala:1421)
	at org.apache.spark.storage.BlockManager$$anonfun$doPutIterator$1.apply(BlockManager.scala:1230)
	at org.apache.spark.storage.BlockManager$$anonfun$doPutIterator$1.apply(BlockManager.scala:1156)
	at org.apache.spark.storage.BlockManager.doPut(BlockManager.scala:1091)
...
Caused by: java.lang.RuntimeException: java.io.IOException: Destination failed while reading stream
...
Caused by: java.lang.OutOfMemoryError: Requested array size exceeds VM limit
	at java.nio.HeapByteBuffer.<init>(HeapByteBuffer.java:57)
	at java.nio.ByteBuffer.allocate(ByteBuffer.java:335)
	at org.apache.spark.storage.BlockManager$$anon$1$$anonfun$7.apply(BlockManager.scala:446)
	at org.apache.spark.storage.BlockManager$$anon$1$$anonfun$7.apply(BlockManager.scala:446)
	at org.apache.spark.storage.EncryptedBlockData.toChunkedByteBuffer(DiskStore.scala:221)
	at org.apache.spark.storage.BlockManager$$anon$1.onComplete(BlockManager.scala:449)
...
{noformat}



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