Use 127.0.0.1

Author: dongjoon-hyun

Sources/SparkConnect/SparkSession.swift

@@ -165,10 +165,10 @@ public actor SparkSession {
       return config("spark.sql.catalogImplementation", "hive")
     }
 
-    /// Create a new ``SparkSession``. If `spark.remote` is not given, `sc://localhost:15002` is used.
+    /// Create a new ``SparkSession``. If `spark.remote` is not given, `sc://127.0.0.1:15002` is used.
     /// - Returns: A newly created `SparkSession`.
     func create() async throws -> SparkSession {
-      let session = SparkSession(sparkConf["spark.remote"] ?? "sc://localhost:15002")
+      let session = SparkSession(sparkConf["spark.remote"] ?? "sc://127.0.0.1:15002")
       let response = try await session.client.connect(session.sessionID)
       await session.setVersion(response.sparkVersion.version)
       let isSuccess = try await session.client.setConf(map: sparkConf)

Tests/SparkConnectTests/BuilderTests.swift

@@ -28,7 +28,7 @@ struct BuilderTests {
   func builderDefault() async throws {
     let spark = try await SparkSession.builder.getOrCreate()
     #expect(await spark.client.clientType == "swift")
-    #expect(await spark.client.url.host() == "localhost")
+    #expect(await spark.client.url.host() == "127.0.0.1")
     #expect(await spark.client.url.port == 15002)
     await spark.stop()
   }