[jira] [Created] (HADOOP-9865) FileContext.globStatus() has a regression with respect to relative path

["Chuan Liu (JIRA)" <ji...@apache.org>]

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.

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