HyukjinKwon commented on code in PR #50017:
URL: https://github.com/apache/spark/pull/50017#discussion_r1963035005
##########
sql/connect/common/src/main/scala/org/apache/spark/sql/connect/SparkSession.scala:
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@@ -712,37 +729,41 @@ object SparkSession extends SparkSessionCompanion with
Logging {
}
}
- val maybeConnectScript =
- Option(System.getenv("SPARK_HOME")).map(Paths.get(_, "sbin",
"start-connect-server.sh"))
-
- if (server.isEmpty &&
- (remoteString.exists(_.startsWith("local")) ||
- (remoteString.isDefined && isAPIModeConnect)) &&
- maybeConnectScript.exists(Files.exists(_))) {
- server = Some {
- val args =
- Seq(maybeConnectScript.get.toString, "--master", remoteString.get)
++ sparkOptions
- .filter(p => !p._1.startsWith("spark.remote"))
- .flatMap { case (k, v) => Seq("--conf", s"$k=$v") }
- val pb = new ProcessBuilder(args: _*)
- // So don't exclude spark-sql jar in classpath
- pb.environment().remove(SparkConnectClient.SPARK_REMOTE)
- pb.start()
- }
-
- // Let the server start. We will directly request to set the
configurations
- // and this sleep makes less noisy with retries.
- Thread.sleep(2000L)
- System.setProperty("spark.remote", "sc://localhost")
-
- // scalastyle:off runtimeaddshutdownhook
- Runtime.getRuntime.addShutdownHook(new Thread() {
- override def run(): Unit = if (server.isDefined) {
- new ProcessBuilder(maybeConnectScript.get.toString)
- .start()
+ server.synchronized {
+ if (server.isEmpty &&
+ (remoteString.exists(_.startsWith("local")) ||
+ (remoteString.isDefined && isAPIModeConnect)) &&
+ maybeConnectStartScript.exists(Files.exists(_))) {
+ server = Some {
+ val args =
+ Seq(
+ maybeConnectStartScript.get.toString,
+ "--master",
+ remoteString.get) ++ sparkOptions
+ .filter(p => !p._1.startsWith("spark.remote"))
+ .filter(p => !p._1.startsWith("spark.api.mode"))
+ .flatMap { case (k, v) => Seq("--conf", s"$k=$v") }
+ val pb = new ProcessBuilder(args: _*)
+ // So don't exclude spark-sql jar in classpath
+ pb.environment().remove(SparkConnectClient.SPARK_REMOTE)
+ pb.environment().put("SPARK_LOCAL_CONNECT", "1")
+ pb.start()
}
- })
- // scalastyle:on runtimeaddshutdownhook
+
+ // Let the server start. We will directly request to set the
configurations
+ // and this sleep makes less noisy with retries.
+ Thread.sleep(2000L)
Review Comment:
We do like wait until logfile is created or sth .. I will take a seperate
look it is original code in any event. Here I just added synchronized
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