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java.net.UnknownHostException: hadoop-eu-1-m
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java.lang.IllegalArgumentException: java.net.UnknownHostException: hadoop-eu
-1-m	at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:377)	at org.apache.hadoop.hdfs.NameNodeProxies.createNonHAProxy(NameNodeProxies.java:237)	at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:141)	at org.apache.hadoop.hdfs.DFSClient.(DFSClient.java:569)	at org.apache.hadoop.hdfs.DFSClient.(DFSClient.java:512)	at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:142)	at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2316)	at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:90)	at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2350)	at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2332)	at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:369)	at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:168)	at io.druid.storage.hdfs.HdfsStorageDruidModule.configure(HdfsStorageDruidModule.java:106)	at com.google.inject.spi.Elements$RecordingBinder.install(Elements.java:230)	at com.google.inject.spi.Elements.getElements(Elements.java:103)	at com.google.inject.spi.Elements.getElements(Elements.java:94)	at com.google.inject.util.Modules$RealOverriddenModuleBuilder$1.configure(Modules.java:173)	at com.google.inject.AbstractModule.configure(AbstractModule.java:62)	at com.google.inject.spi.Elements$RecordingBinder.install(Elements.java:230)	at com.google.inject.spi.Elements.getElements(Elements.java:103)	at com.google.inject.internal.InjectorShell$Builder.build(InjectorShell.java:136)	at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:104)	at com.google.inject.Guice.createInjector(Guice.java:96)	at com.google.inject.Guice.createInjector(Guice.java:73)	at com.google.inject.Guice.createInjector(Guice.java:62)	at io.druid.initialization.Initialization.makeInjectorWithModules(Initialization.java:367)	at io.druid.cli.GuiceRunnable.makeInjector(GuiceRunnable.java:60)	at io.druid.cli.CliPeon.run(CliPeon.java:272)	at io.druid.cli.Main.main(Main.java:105)