[jira] Commented: (HADOOP-5140) setting fs.default.name to an invalid URI format kills init thread in JobTracker

[sam rash (JIRA)]

    [ 
https://issues.apache.org/jira/browse/HADOOP-5140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12668293#action_12668293
 ] 

sam rash commented on HADOOP-5140:
----------------------------------

first stack trace:
2009-01-28 18:15:41,531 ERROR 
org.apache.hadoop.mapred.EagerTaskInitializationListener: Job initialization 
failed:
java.lang.IllegalArgumentException
        at java.net.URI.create(URI.java:842)
        at org.apache.hadoop.fs.FileSystem.getDefaultUri(FileSystem.java:128)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:208)
        at org.apache.hadoop.fs.Path.getFileSystem(Path.java:175)
        at 
org.apache.hadoop.mapred.JobHistory$JobInfo.getJobHistoryFileName(JobHistory.java:630)
        at 
org.apache.hadoop.mapred.JobHistory$JobInfo.logSubmitted(JobHistory.java:803)
        at 
org.apache.hadoop.mapred.JobInProgress.initTasks(JobInProgress.java:353)
        at 
org.apache.hadoop.mapred.EagerTaskInitializationListener$JobInitThread.run(EagerTaskInitializationListener.java:55)
        at java.lang.Thread.run(Thread.java:637)
Caused by: java.net.URISyntaxException: Illegal character in authority at index 
7: hdfs://${name}
        at java.net.URI$Parser.fail(URI.java:2809)
        at java.net.URI$Parser.parseAuthority(URI.java:3147)
        at java.net.URI$Parser.parseHierarchical(URI.java:3058)
        at java.net.URI$Parser.parse(URI.java:3014)
        at java.net.URI.<init>(URI.java:578)
        at java.net.URI.create(URI.java:840)
        ... 8 more

code with the problem:

class JobInitThread implements Runnable {
    public void run() {
      JobInProgress job;
      while (true) {
        job = null;
        try {
          synchronized (jobInitQueue) {
            while (jobInitQueue.isEmpty()) {
              jobInitQueue.wait();
            }
            job = jobInitQueue.remove(0);
          }
          job.initTasks();
        } catch (InterruptedException t) {
          break;
        } catch (Throwable t) {
          LOG.error("Job initialization failed:\n" +
                    StringUtils.stringifyException(t));
          if (job != null) {
            job.fail();
          }
        }
      }
    }
  }

job.fail() eventually calls garbageCollect() which trys to get the filesystem 
from the jobconf.  The same exceptoin as above will occur when it trys to 
cleanup the dfs tmp dir, but this time it's not caught (being thrown inside the 
catch() block) and kills the JobInitThread

> setting fs.default.name to an invalid URI format kills init thread in 
> JobTracker
> --------------------------------------------------------------------------------
>
>                 Key: HADOOP-5140
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5140
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.19.0
>            Reporter: sam rash
>            Priority: Minor
>
> If you set fs.default.name in a JobConf object to something that causes 
> java.net.URI to throw an IllegalArgumentException, the job not only fails 
> initalization, but kills the JobInitThread

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