This sounds like the right approach. Is there any sample code showing how to use sc.newAPIHadoopFile ? I am new to Spark and don’t know much about Hadoop. I just want to read a text file from UNC path into an RDD.
Thanks From: Akhil Das [mailto:ak...@sigmoidanalytics.com] Sent: Tuesday, March 10, 2015 9:14 AM To: java8964 Cc: Wang, Ningjun (LNG-NPV); user@spark.apache.org Subject: Re: sc.textFile() on windows cannot access UNC path You can create your own Input Reader (using java.nio.*) and pass it to the sc.newAPIHadoopFile while reading. Thanks Best Regards On Tue, Mar 10, 2015 at 6:28 PM, java8964 <java8...@hotmail.com<mailto:java8...@hotmail.com>> wrote: I think the work around is clear. Using JDK 7, and implement your own saveAsRemoteWinText() using java.nio.path. Yong ________________________________ From: ningjun.w...@lexisnexis.com<mailto:ningjun.w...@lexisnexis.com> To: java8...@hotmail.com<mailto:java8...@hotmail.com>; user@spark.apache.org<mailto:user@spark.apache.org> Subject: RE: sc.textFile() on windows cannot access UNC path Date: Tue, 10 Mar 2015 03:02:37 +0000 Hi Yong Thanks for the reply. Yes it works with local drive letter. But I really need to use UNC path because the path is input from at runtime. I cannot dynamically assign a drive letter to arbitrary UNC path at runtime. Is there any work around that I can use UNC path for sc.textFile(…)? Ningjun From: java8964 [mailto:java8...@hotmail.com<mailto:java8...@hotmail.com>] Sent: Monday, March 09, 2015 5:33 PM To: Wang, Ningjun (LNG-NPV); user@spark.apache.org<mailto:user@spark.apache.org> Subject: RE: sc.textFile() on windows cannot access UNC path This is a Java problem, not really Spark. From this page: http://stackoverflow.com/questions/18520972/converting-java-file-url-to-file-path-platform-independent-including-u You can see that using Java.nio.* on JDK 7, it will fix this issue. But Path class in Hadoop will use java.io.*, instead of java.nio. You need to manually mount your windows remote share a local driver, like "Z:", then it should work. Yong ________________________________ From: ningjun.w...@lexisnexis.com<mailto:ningjun.w...@lexisnexis.com> To: user@spark.apache.org<mailto:user@spark.apache.org> Subject: sc.textFile() on windows cannot access UNC path Date: Mon, 9 Mar 2015 21:09:38 +0000 I am running Spark on windows 2008 R2. I use sc.textFile() to load text file using UNC path, it does not work. sc.textFile(raw"file:////10.196.119.230/folder1/abc.txt<file:///\\10.196.119.230\folder1\abc.txt>", 4).count() Input path does not exist: file:/10.196.119.230/folder1/abc.txt<http://10.196.119.230/folder1/abc.txt> org.apache.hadoop.mapred.InvalidInputException: Input path does not exist: file:/10.196.119.230/tar/Enron/enron-207-short.load<http://10.196.119.230/tar/Enron/enron-207-short.load> at org.apache.hadoop.mapred.FileInputFormat.listStatus(FileInputFormat.java:251) at org.apache.hadoop.mapred.FileInputFormat.getSplits(FileInputFormat.java:270) at org.apache.spark.rdd.HadoopRDD.getPartitions(HadoopRDD.scala:201) at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:205) at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:203) at scala.Option.getOrElse(Option.scala:120) at org.apache.spark.rdd.RDD.partitions(RDD.scala:203) at org.apache.spark.rdd.MappedRDD.getPartitions(MappedRDD.scala:28) at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:205) at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:203) at scala.Option.getOrElse(Option.scala:120) at org.apache.spark.rdd.RDD.partitions(RDD.scala:203) at org.apache.spark.SparkContext.runJob(SparkContext.scala:1328) at org.apache.spark.rdd.RDD.count(RDD.scala:910) at ltn.analytics.tests.IndexTest$$anonfun$3.apply$mcV$sp(IndexTest.scala:104) at ltn.analytics.tests.IndexTest$$anonfun$3.apply(IndexTest.scala:103) at ltn.analytics.tests.IndexTest$$anonfun$3.apply(IndexTest.scala:103) at org.scalatest.Transformer$$anonfun$apply$1.apply$mcV$sp(Transformer.scala:22) at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85) at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104) at org.scalatest.Transformer.apply(Transformer.scala:22) at org.scalatest.Transformer.apply(Transformer.scala:20) at org.scalatest.FunSuiteLike$$anon$1.apply(FunSuiteLike.scala:166) at org.scalatest.Suite$class.withFixture(Suite.scala:1122) at org.scalatest.FunSuite.withFixture(FunSuite.scala:1555) at org.scalatest.FunSuiteLike$class.invokeWithFixture$1(FunSuiteLike.scala:163) at org.scalatest.FunSuiteLike$$anonfun$runTest$1.apply(FunSuiteLike.scala:175) at org.scalatest.FunSuiteLike$$anonfun$runTest$1.apply(FunSuiteLike.scala:175) at org.scalatest.SuperEngine.runTestImpl(Engine.scala:306) at org.scalatest.FunSuiteLike$class.runTest(FunSuiteLike.scala:175) at org.scalatest.FunSuite.runTest(FunSuite.scala:1555) at org.scalatest.FunSuiteLike$$anonfun$runTests$1.apply(FunSuiteLike.scala:208) at org.scalatest.FunSuiteLike$$anonfun$runTests$1.apply(FunSuiteLike.scala:208) at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:413) at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:401) at scala.collection.immutable.List.foreach(List.scala:318) at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401) at org.scalatest.SuperEngine.org<http://org.scalatest.SuperEngine.org>$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:396) at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:483) at org.scalatest.FunSuiteLike$class.runTests(FunSuiteLike.scala:208) at org.scalatest.FunSuite.runTests(FunSuite.scala:1555) at org.scalatest.Suite$class.run(Suite.scala:1424) at org.scalatest.FunSuite.org<http://org.scalatest.FunSuite.org>$scalatest$FunSuiteLike$$super$run(FunSuite.scala:1555) at org.scalatest.FunSuiteLike$$anonfun$run$1.apply(FunSuiteLike.scala:212) at org.scalatest.FunSuiteLike$$anonfun$run$1.apply(FunSuiteLike.scala:212) at org.scalatest.SuperEngine.runImpl(Engine.scala:545) at org.scalatest.FunSuiteLike$class.run(FunSuiteLike.scala:212) at ltn.analytics.tests.IndexTest.org<http://ltn.analytics.tests.IndexTest.org>$scalatest$BeforeAndAfterAll$$super$run(IndexTest.scala:15) at org.scalatest.BeforeAndAfterAll$class.liftedTree1$1(BeforeAndAfterAll.scala:257) at org.scalatest.BeforeAndAfterAll$class.run(BeforeAndAfterAll.scala:256) at ltn.analytics.tests.IndexTest.run(IndexTest.scala:15) at org.scalatest.tools.SuiteRunner.run(SuiteRunner.scala:55) at org.scalatest.tools.Runner$$anonfun$doRunRunRunDaDoRunRun$3.apply(Runner.scala:2563) at org.scalatest.tools.Runner$$anonfun$doRunRunRunDaDoRunRun$3.apply(Runner.scala:2557) at scala.collection.immutable.List.foreach(List.scala:318) at org.scalatest.tools.Runner$.doRunRunRunDaDoRunRun(Runner.scala:2557) at org.scalatest.tools.Runner$$anonfun$runOptionallyWithPassFailReporter$2.apply(Runner.scala:1044) at org.scalatest.tools.Runner$$anonfun$runOptionallyWithPassFailReporter$2.apply(Runner.scala:1043) at org.scalatest.tools.Runner$.withClassLoaderAndDispatchReporter(Runner.scala:2722) at org.scalatest.tools.Runner$.runOptionallyWithPassFailReporter(Runner.scala:1043) at org.scalatest.tools.Runner$.run(Runner.scala:883) at org.scalatest.tools.Runner.run(Runner.scala) at org.jetbrains.plugins.scala.testingSupport.scalaTest.ScalaTestRunner.runScalaTest2(ScalaTestRunner.java:137) at org.jetbrains.plugins.scala.testingSupport.scalaTest.ScalaTestRunner.main(ScalaTestRunner.java:28) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134) The path is correct, I can open windows explorer enter the following path to open the text file \\10.196.119.230\folder1\abc.txt<file:///\\10.196.119.230\folder1\abc.txt> I have tried to use 3 slah, 2 slah, and always got the same error sc.textFile(raw"file:///10.196.119.230/folder1/abc.txt<file:///\\10.196.119.230\folder1\abc.txt>", 4).count() sc.textFile(raw"file://10.196.119.230/folder1/abc.txt<file:///\\10.196.119.230\folder1\abc.txt>", 4).count() Please advise. Ningjun
