bogao007 commented on code in PR #48884:
URL: https://github.com/apache/spark/pull/48884#discussion_r1847385442
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sql/core/src/main/scala/org/apache/spark/sql/execution/python/TransformWithStateInPandasStateServer.scala:
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@@ -758,3 +760,12 @@ case class MapStateInfo(
keySerializer: ExpressionEncoder.Serializer[Row],
valueDeserializer: ExpressionEncoder.Deserializer[Row],
valueSerializer: ExpressionEncoder.Serializer[Row])
+
+object TransformWithStateInPandasStateServer {
+ @volatile private var id = 0
Review Comment:
There's no much difference comparing to TCP socket. For UDS, we create
socket files (we use different ports for TCP) for each server thread
connection, and the files are named with different `serverId` which got updated
incrementally. At the end we do cleanup to delete these socket files.
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