[ http://issues.apache.org/jira/browse/HADOOP-242?page=all ]
Owen O'Malley reopened HADOOP-242:
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Assign To: Owen O'Malley (was: Sameer Paranjpye)
My patch didn't fix the problem, so I need to track this one down.
> job fails because of "No valid local directories in property: " exception
> -------------------------------------------------------------------------
>
> Key: HADOOP-242
> URL: http://issues.apache.org/jira/browse/HADOOP-242
> Project: Hadoop
> Type: Bug
> Components: mapred
> Reporter: Yoram Arnon
> Assignee: Owen O'Malley
> Fix For: 0.3
> Attachments: no-local.patch
>
> when running a fairly large job, of 70+K map tasks, I get many exceptions as
> shown below, and eventually the job failes when a task fails four times.
> The exception doesn't really tell us enough information to debug this
> properly, so the first thing to do would be to add more information (path) to
> the exception.
> The path indicated in the config file exists, is writable and valid, though
> 'path' may be anything.
> the exception:
> java.io.IOException: No valid local directories in property: mapred.local.dir
> at org.apache.hadoop.conf.Configuration.getLocalPath(Configuration.java:293)
> at org.apache.hadoop.mapred.JobConf.getLocalPath(JobConf.java:153) at
> org.apache.hadoop.mapred.TaskTracker$TaskInProgress.localizeTask(TaskTracker.java:523)
> at
> org.apache.hadoop.mapred.TaskTracker$TaskInProgress.launchTask(TaskTracker.java:572)
> at org.apache.hadoop.mapred.TaskTracker.startNewTask(TaskTracker.java:389)
> at org.apache.hadoop.mapred.TaskTracker.offerService(TaskTracker.java:303) at
> org.apache.hadoop.mapred.TaskTracker.run(TaskTracker.java:418) at
> org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:920)
> the code:
> public Path getLocalPath(String dirsProp, String path)
> throws IOException {
> String[] dirs = getStrings(dirsProp);
> int hashCode = path.hashCode();
> FileSystem fs = FileSystem.getNamed("local", this);
> for (int i = 0; i < dirs.length; i++) { // try each local dir
> int index = (hashCode+i & Integer.MAX_VALUE) % dirs.length;
> Path file = new Path(dirs[index], path);
> Path dir = file.getParent();
> if (fs.exists(dir) || fs.mkdirs(dir)) {
> return file;
> }
> }
> throw new IOException("No valid local directories in property:
> "+dirsProp);
> }
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