Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/2844#discussion_r19126192
--- Diff:
core/src/main/scala/org/apache/spark/broadcast/TorrentBroadcast.scala ---
@@ -62,6 +59,20 @@ private[spark] class TorrentBroadcast[T: ClassTag](
* blocks from the driver and/or other executors.
*/
@transient private var _value: T = obj
+ /** The compression codec to use, or None if compression is disabled */
+ @transient private var compressionCodec: Option[CompressionCodec] = _
+ /** Size of each block. Default value is 4MB. This value is only read
by the broadcaster. */
+ @transient private var blockSize: Int = _
+
+ private def setConf(conf: SparkConf) {
+ compressionCodec = if (conf.getBoolean("spark.broadcast.compress",
true)) {
+ Some(CompressionCodec.createCodec(conf))
+ } else {
+ None
+ }
+ blockSize = conf.getInt("spark.broadcast.blockSize", 4096) * 1024
+ }
+ setConf(SparkEnv.get.conf)
--- End diff --
Done.
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