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org.apache.hadoop.fs.swift.exceptions.SwiftConfigurationException: Invalid host name	at org.apache.hadoop.fs.swift.util.SwiftUtils.validSchema(SwiftUtils.java:222)	at org.apache.hadoop.fs.swift.http.SwiftRestClient.(SwiftRestClient.java:510)	at org.apache.hadoop.fs.swift.http.SwiftRestClient.getInstance(SwiftRestClient.java:1914)	at org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystemStore.initialize(SwiftNativeFileSystemStore.java:81)	at org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystem.initialize(SwiftNativeFileSystem.java:129)	at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2596)	at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:91)	at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2630)	at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2612)	at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:370)	at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296)	at org.apache.hadoop.mapred.FileInputFormat.singleThreadedListStatus(FileInputFormat.java:256)	at org.apache.hadoop.mapred.FileInputFormat.listStatus(FileInputFormat.java:228)	at org.apache.hadoop.mapred.FileInputFormat.getSplits(FileInputFormat.java:313)	at org.apache.spark.rdd.HadoopRDD.getPartitions(HadoopRDD.scala:199)	at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:239)	at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:237)	at scala.Option.getOrElse(Option.scala:120)	at org.apache.spark.rdd.RDD.partitions(RDD.scala:237)	at org.apache.spark.rdd.MapPartitionsRDD.getPartitions(MapPartitionsRDD.scala:35)	at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:239)	at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:237)	at scala.Option.getOrElse(Option.scala:120)	at org.apache.spark.rdd.RDD.partitions(RDD.scala:237)	at org.apache.spark.api.java.JavaRDDLike$class.partitions(JavaRDDLike.scala:64)	at org.apache.spark.api.java.AbstractJavaRDDLike.partitions(JavaRDDLike.scala:46)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:95)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)	at java.lang.reflect.Method.invoke(Method.java:507)	at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:231)	at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:381)	at py4j.Gateway.invoke(Gateway.java:259)	at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:133)	at py4j.commands.CallCommand.execute(CallCommand.java:79)	at py4j.GatewayConnection.run(GatewayConnection.java:209)	at java.lang.Thread.run(Thread.java:785)