[ https://issues.apache.org/jira/browse/PIG-3830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai updated PIG-3830: ---------------------------- Fix Version/s: (was: 0.14.0) 0.15.0 > HiveColumnarLoader throwing FileNotFoundException on Hadoop 2 > ------------------------------------------------------------- > > Key: PIG-3830 > URL: https://issues.apache.org/jira/browse/PIG-3830 > Project: Pig > Issue Type: Bug > Affects Versions: 0.12.0 > Reporter: Jarek Jarcec Cecho > Assignee: Jarek Jarcec Cecho > Fix For: 0.15.0 > > Attachments: PIG-3830.patch > > > I've noticed that {{HiveColumnarLoader}} will thrown > {{java.io.FileNotFoundException}} when used with glob path on Hadoop 2.0. It > will run just fine on Hadoop 1.0: > {code} > Failed to parse: java.io.FileNotFoundException: File > /home/jarcec/cloudera/repos/pig/contrib/piggybank/java/simpleDataDir1395623312698/*.txt > does not exist > at > org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:198) > at org.apache.pig.PigServer$Graph.parseQuery(PigServer.java:1676) > at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1623) > at org.apache.pig.PigServer.registerQuery(PigServer.java:575) > at org.apache.pig.PigServer.registerQuery(PigServer.java:588) > at > org.apache.pig.piggybank.test.storage.TestHiveColumnarLoader.testHdfdsGlobbing(TestHiveColumnarLoader.java:220) > 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:601) > at junit.framework.TestCase.runTest(TestCase.java:176) > at junit.framework.TestCase.runBare(TestCase.java:141) > at junit.framework.TestResult$1.protect(TestResult.java:122) > at junit.framework.TestResult.runProtected(TestResult.java:142) > at junit.framework.TestResult.run(TestResult.java:125) > at junit.framework.TestCase.run(TestCase.java:129) > at junit.framework.TestSuite.runTest(TestSuite.java:255) > at junit.framework.TestSuite.run(TestSuite.java:250) > at > org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:518) > at > org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:1052) > at > org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:906) > Caused by: java.lang.RuntimeException: java.io.FileNotFoundException: File > /home/jarcec/cloudera/repos/pig/contrib/piggybank/java/simpleDataDir1395623312698/*.txt > does not exist > at > org.apache.hadoop.fs.RawLocalFileSystem.listStatus(RawLocalFileSystem.java:362) > at org.apache.hadoop.fs.FileSystem.listStatus(FileSystem.java:1484) > at org.apache.hadoop.fs.FileSystem.listStatus(FileSystem.java:1524) > at > org.apache.hadoop.fs.ChecksumFileSystem.listStatus(ChecksumFileSystem.java:564) > at > org.apache.pig.piggybank.storage.partition.PathPartitioner.getPartitionKeys(PathPartitioner.java:105) > at > org.apache.pig.piggybank.storage.partition.PathPartitionHelper.getPartitionKeys(PathPartitionHelper.java:101) > at > org.apache.pig.piggybank.storage.HiveColumnarLoader.getPartitionColumns(HiveColumnarLoader.java:576) > at > org.apache.pig.piggybank.storage.HiveColumnarLoader.getSchema(HiveColumnarLoader.java:646) > at > org.apache.pig.newplan.logical.relational.LOLoad.getSchemaFromMetaData(LOLoad.java:175) > at > org.apache.pig.newplan.logical.relational.LOLoad.<init>(LOLoad.java:89) > at > org.apache.pig.parser.LogicalPlanBuilder.buildLoadOp(LogicalPlanBuilder.java:853) > at > org.apache.pig.parser.LogicalPlanGenerator.load_clause(LogicalPlanGenerator.java:3479) > at > org.apache.pig.parser.LogicalPlanGenerator.op_clause(LogicalPlanGenerator.java:1536) > at > org.apache.pig.parser.LogicalPlanGenerator.general_statement(LogicalPlanGenerator.java:1013) > at > org.apache.pig.parser.LogicalPlanGenerator.statement(LogicalPlanGenerator.java:553) > at > org.apache.pig.parser.LogicalPlanGenerator.query(LogicalPlanGenerator.java:421) > at > org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:188) > ... 20 more > Caused by: java.io.FileNotFoundException: File > /home/jarcec/cloudera/repos/pig/contrib/piggybank/java/simpleDataDir1395623312698/*.txt > does not exist > ... 37 more > {code} > I've dived into the problem and found a difference in Hadoop implementation > of {{DistributedFileSystem}}. For non existing directory method > {{listStatus}} will return {{null}} in [Hadoop > 1|https://github.com/apache/hadoop-common/blob/branch-1/src/hdfs/org/apache/hadoop/hdfs/DistributedFileSystem.java#L316]: > {code} > if (thisListing == null) { // the directory does not exist > return null; > } > {code} > But will thrown an exception in [Hadoop > 2|https://github.com/apache/hadoop-common/blob/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java#L653]: > {code} > if (thisListing == null) { // the directory does not exist > throw new FileNotFoundException("File " + p + " does not exist."); > } > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)