[MAPREDUCE-7175] JobSubmitter: validateFilePath() throws an exception because it requests a local FS unnecessarily

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 3.1.1, 2.9.2
• Component/s: client
• Assignee: Peter Bacsko
• Reporter: Peter Bacsko
• Created: 02/Jan/19 15:42
• Updated: 03/Jan/19 14:08
• Resolved: 03/Jan/19 14:08

Description

After a security fix, we receive the following exception in Oozie if we want to use mapreduce.job.log4j-properties-file

org.apache.oozie.action.ActionExecutorException: UnsupportedOperationException: Accessing local file system is not allowed
at org.apache.oozie.action.ActionExecutor.convertException(ActionExecutor.java:446)
at org.apache.oozie.action.hadoop.JavaActionExecutor.submitLauncher(JavaActionExecutor.java:1246)
at org.apache.oozie.action.hadoop.JavaActionExecutor.start(JavaActionExecutor.java:1424)
at org.apache.oozie.command.wf.ActionStartXCommand.execute(ActionStartXCommand.java:232)
at org.apache.oozie.command.wf.ActionStartXCommand.execute(ActionStartXCommand.java:63)
at org.apache.oozie.command.XCommand.call(XCommand.java:286)
at org.apache.oozie.service.CallableQueueService$CompositeCallable.call(CallableQueueService.java:332)
at org.apache.oozie.service.CallableQueueService$CompositeCallable.call(CallableQueueService.java:261)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.oozie.service.CallableQueueService$CallableWrapper.run(CallableQueueService.java:179)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.UnsupportedOperationException: Accessing local file system is not allowed
at org.apache.hadoop.fs.RawLocalFileSystem.initialize(RawLocalFileSystem.java:48)
at org.apache.hadoop.fs.LocalFileSystem.initialize(LocalFileSystem.java:47)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2816)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:98)
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2853)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2835)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:387)
at org.apache.hadoop.fs.FileSystem.getLocal(FileSystem.java:358)
at org.apache.hadoop.mapreduce.JobResourceUploader.validateFilePath(JobResourceUploader.java:303)
at org.apache.hadoop.mapreduce.JobResourceUploader.copyLog4jPropertyFile(JobResourceUploader.java:248)
at org.apache.hadoop.mapreduce.JobResourceUploader.addLog4jToDistributedCache(JobResourceUploader.java:223)
at org.apache.hadoop.mapreduce.JobResourceUploader.uploadFiles(JobResourceUploader.java:175)
at org.apache.hadoop.mapreduce.JobSubmitter.copyAndConfigureFiles(JobSubmitter.java:99)
at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:194)
at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1307)
at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1304)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1924)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:1304)
at org.apache.hadoop.mapred.JobClient$1.run(JobClient.java:578)
at org.apache.hadoop.mapred.JobClient$1.run(JobClient.java:573)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1924)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:573)
at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:564)
at org.apache.oozie.action.hadoop.JavaActionExecutor.submitLauncher(JavaActionExecutor.java:1231)
... 11 more

 

Note that this happens even if the scheme is hdfs://. The solution is what mentioned in MAPREDUCE-6052: move

FileSystem localFs = FileSystem.getLocal(conf);

inside the if block.

Issue Links

• is duplicated by: MAPREDUCE-7125 JobResourceUploader creates LocalFileSystem when it's not necessary
• relates to: MAPREDUCE-6052 Support overriding log4j.properties per job