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java.lang.Objectorg.apache.hadoop.mapreduce.server.tasktracker.Localizer
public class Localizer
NOTE: This class is internal only and not intended for users!!
Constructor Summary | |
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Localizer(org.apache.hadoop.fs.FileSystem fileSys,
java.lang.String[] lDirs)
Create a Localizer instance |
Method Summary | |
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void |
initializeAttemptDirs(java.lang.String user,
java.lang.String jobId,
java.lang.String attemptId)
Create taskDirs on all the disks. |
void |
initializeJobDirs(java.lang.String user,
JobID jobId)
Prepare the job directories for a given job. |
void |
initializeJobLogDir(JobID jobId)
Create job log directory and set appropriate permissions for the directory. |
void |
initializeUserDirs(java.lang.String user)
Initialize the local directories for a particular user on this TT. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public Localizer(org.apache.hadoop.fs.FileSystem fileSys, java.lang.String[] lDirs)
fileSys
- lDirs
- Method Detail |
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public void initializeUserDirs(java.lang.String user) throws java.io.IOException
user
-
java.io.IOException
public void initializeJobDirs(java.lang.String user, JobID jobId) throws java.io.IOException
TaskController.initializeJob(java.lang.String, java.lang.String, org.apache.hadoop.fs.Path, org.apache.hadoop.fs.Path, org.apache.hadoop.mapred.TaskUmbilicalProtocol, java.net.InetSocketAddress)
is run at a
later time to set proper private permissions on the job directories.
user
- jobId
-
java.io.IOException
public void initializeAttemptDirs(java.lang.String user, java.lang.String jobId, java.lang.String attemptId) throws java.io.IOException
user
- jobId
- attemptId
-
java.io.IOException
public void initializeJobLogDir(JobID jobId) throws java.io.IOException
jobId
-
java.io.IOException
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