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SPARK-2282: Reuse PySpark Accumulator sockets to avoid crashing Spark #1220

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SPARK-2282: Reuse PySpark Accumulator sockets to avoid crashing Spark #1220

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2 changes: 2 additions & 0 deletions core/src/main/scala/org/apache/spark/api/python/PythonRDD.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -599,6 +599,8 @@ private class PythonAccumulatorParam(@transient serverHost: String, serverPort:
} else {
// This happens on the master, where we pass the updates to Python through a socket
val socket = new Socket(serverHost, serverPort)
// SPARK-2282: Immediately reuse closed sockets because we create one per task.
socket.setReuseAddress(true)
val in = socket.getInputStream
val out = new DataOutputStream(new BufferedOutputStream(socket.getOutputStream, bufferSize))
out.writeInt(val2.size)
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