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From "Devaraj K (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2463) Job History files are not moving to done folder when job history location is hdfs location
Date Mon, 02 May 2011 09:02:03 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13027598#comment-13027598

Devaraj K commented on MAPREDUCE-2463:

As per MAPREDUCE-2351, if we give any arbitrary file system URI for "mapred.job.tracker.history.completed.location"
is working fine. But if we give other than local file system URI for "mapreduce.jobtracker.jobhistory.location"
is failing. 

  private void moveToDoneNow(Path fromPath, Path toPath) throws IOException {
    //check if path exists, in case of retries it may not exist
    if (logDirFs.exists(fromPath)) {
      LOG.info("Moving " + fromPath.toString() + " to " +
      doneDirFs.moveFromLocalFile(fromPath, toPath);
          new FsPermission(JobHistory.HISTORY_FILE_PERMISSION));

In the above code, doneDirFs.moveFromLocalFile(fromPath, toPath); is trying to move from local
file system even if we give the history location as hdfs location and it is failing with the
above exception.

> Job History files are not moving to done folder when job history location is hdfs location
> ------------------------------------------------------------------------------------------
>                 Key: MAPREDUCE-2463
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2463
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>    Affects Versions: 0.23.0
>            Reporter: Devaraj K
>            Assignee: Devaraj K
> If "mapreduce.jobtracker.jobhistory.location" is configured as HDFS location then either
during initialization of Job Tracker (while moving old job history files) or after completion
of the job, history files are not moving to done and giving following exception.
> {code:xml} 
> 2011-04-29 15:27:27,813 ERROR org.apache.hadoop.mapreduce.jobhistory.JobHistory: Unable
to move history file to DONE folder.
> java.lang.IllegalArgumentException: Wrong FS: hdfs://,
expected: file:///
> 	at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:402)
> 	at org.apache.hadoop.fs.RawLocalFileSystem.pathToFile(RawLocalFileSystem.java:58)
> 	at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:419)
> 	at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:294)
> 	at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:215)
> 	at org.apache.hadoop.fs.FileSystem.copyFromLocalFile(FileSystem.java:1516)
> 	at org.apache.hadoop.fs.FileSystem.copyFromLocalFile(FileSystem.java:1492)
> 	at org.apache.hadoop.fs.FileSystem.moveFromLocalFile(FileSystem.java:1482)
> 	at org.apache.hadoop.mapreduce.jobhistory.JobHistory.moveToDoneNow(JobHistory.java:348)
> 	at org.apache.hadoop.mapreduce.jobhistory.JobHistory.access$200(JobHistory.java:61)
> 	at org.apache.hadoop.mapreduce.jobhistory.JobHistory$1.run(JobHistory.java:439)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> 	at java.lang.Thread.run(Thread.java:619)
> {code} 

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