HyukjinKwon commented on code in PR #50466:
URL: https://github.com/apache/spark/pull/50466#discussion_r2025820096
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core/src/main/scala/org/apache/spark/api/python/PythonRunner.scala:
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@@ -356,27 +360,36 @@ private[spark] abstract class BasePythonRunner[IN, OUT](
// Init a ServerSocket to accept method calls from Python side.
val isBarrier = context.isInstanceOf[BarrierTaskContext]
if (isBarrier) {
- serverSocket = Some(new ServerSocket(/* port */ 0,
- /* backlog */ 1,
- InetAddress.getByName("localhost")))
- // A call to accept() for ServerSocket shall block infinitely.
- serverSocket.foreach(_.setSoTimeout(0))
+ if (isUnixDomainSock) {
+ serverSocketChannel =
Some(ServerSocketChannel.open(StandardProtocolFamily.UNIX))
+ sockPath.deleteOnExit()
+
serverSocketChannel.get.bind(UnixDomainSocketAddress.of(sockPath.getPath))
+ } else {
+ serverSocketChannel = Some(ServerSocketChannel.open())
+ serverSocketChannel.foreach(_.bind(
+ new InetSocketAddress(InetAddress.getLoopbackAddress(), 0), 1))
+ serverSocketChannel.foreach(_.socket().setSoTimeout(0))
+ }
+
+ serverSocketChannel.foreach(_.configureBlocking(true))
Review Comment:
We don't need .. but I just did it for sure
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