Chuan Liu created HADOOP-9865: --------------------------------- Summary: FileContext.globStatus() has a regression with respect to relative path Key: HADOOP-9865 URL: https://issues.apache.org/jira/browse/HADOOP-9865 Project: Hadoop Common Issue Type: Bug Reporter: Chuan Liu Assignee: Chuan Liu
I discovered the problem when running unit test TestMRJobClient. The cause is indirect in this case. In the unit test, we try to launch a job and list its status. The job failed, and caused the list command get a result of 0, which triggered the unit test assert. From the log and debug, the job failed because we failed to create the Jar with classpath (see code around {{FileUtil.createJarWithClassPath}}) in {{ContainerLaunch}}. This step failed because we passed in a relative path to {{FileContext.globStatus()}} in {{FileUtil.createJarWithClassPath}}. The relevant log looks like the following. {noformat} 2013-08-12 16:12:05,937 WARN [ContainersLauncher #0] launcher.ContainerLaunch (ContainerLaunch.java:call(270)) - Failed to launch container. org.apache.hadoop.HadoopIllegalArgumentException: Path is relative at org.apache.hadoop.fs.Path.checkNotRelative(Path.java:74) at org.apache.hadoop.fs.FileContext.getFSofPath(FileContext.java:304) at org.apache.hadoop.fs.Globber.schemeFromPath(Globber.java:107) at org.apache.hadoop.fs.Globber.glob(Globber.java:128) at org.apache.hadoop.fs.FileContext$Util.globStatus(FileContext.java:1908) at org.apache.hadoop.fs.FileUtil.createJarWithClassPath(FileUtil.java:1247) at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.sanitizeEnv(ContainerLaunch.java:679) at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:232) at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:1) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) {noformat} I think this is a regression from HADOOP-9817. I modified some code and the unit test passed. (See the attached patch.) However, I think the impact is larger. I will add some unit tests to verify the behavior, and work on a more complete fix. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira