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https://issues.apache.org/jira/browse/MAPREDUCE-2921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13095037#comment-13095037
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Eli Collins commented on MAPREDUCE-2921:
----------------------------------------

TaskTracke#initialize and DefaultTaskController#initializeJob can't handle 
mkdirs failing.

2011-08-31 17:58:58,795 INFO org.apache.hadoop.mapred.TaskTracker: Starting 
tasktracker with owner as eli
2011-08-31 17:58:58,796 INFO org.apache.hadoop.mapred.TaskTracker: Good mapred 
local directories are: 
/home/eli/src/hadoop1/dirs/mapred/local1,/home/eli/src/hadoop1/dirs/mapred/local2
2011-08-31 17:58:58,799 ERROR org.apache.hadoop.mapred.TaskTracker: Can not 
start task tracker because java.io.IOException: Failed to set permissions of 
path: /home/eli/src/hadoop1/dirs/mapred/local1/taskTracker to 0755
        at 
org.apache.hadoop.fs.RawLocalFileSystem.checkReturnValue(RawLocalFileSystem.java:526)
        at 
org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:500)
        at 
org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:319)
        at 
org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:183)
        at org.apache.hadoop.mapred.TaskTracker.initialize(TaskTracker.java:736)
        at org.apache.hadoop.mapred.TaskTracker.<init>(TaskTracker.java:1463)
        at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:3620)


> TaskTracker won't start with failed local directory
> ---------------------------------------------------
>
>                 Key: MAPREDUCE-2921
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2921
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: tasktracker
>    Affects Versions: 0.20.204.0
>            Reporter: Eli Collins
>
> Chmod'ing one of the mapred local directories so it's not executable will 
> cause the TT to fail to start. Doing this after the TT has started will 
> result in a TT that is up but can not execute tasks. 

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