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From Matthew Tovbin <matt...@tovbin.com>
Subject Re: Problem starting up tasktracker - CDH3u0
Date Mon, 18 Apr 2011 09:26:55 GMT
Got all working.

/app/hadoop/tmp required 755


On Mon, Apr 18, 2011 at 11:46, Matthew Tovbin <matthew@tovbin.com> wrote:

> Hey,
>
> I got CDH3u0 installed. I am trying to setup a single node configuration. I
> got name node, data node and job tracker up and running. But when I try to
> start the task tracker I got the following error message in log:
>
> /************************************************************
> STARTUP_MSG: Starting TaskTracker
> STARTUP_MSG:   host = matthew-desktop/127.0.1.1
> STARTUP_MSG:   args = []
> STARTUP_MSG:   version = 0.20.2-cdh3u0
> STARTUP_MSG:   build =  -r 81256ad0f2e4ab2bd34b04f53d25a6c23686dd14;
> compiled by 'root' on Sat Mar 26 00:14:04 UTC 2011
> ************************************************************/
> 2011-04-18 11:45:08,606 INFO org.mortbay.log: Logging to
> org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via
> org.mortbay.log.Slf4jLog
> 2011-04-18 11:45:08,644 INFO org.apache.hadoop.http.HttpServer: Added
> global filtersafety
> (class=org.apache.hadoop.http.HttpServer$QuotingInputFilter)
> 2011-04-18 11:45:08,660 INFO org.apache.hadoop.mapred.TaskLogsTruncater:
> Initializing logs' truncater with mapRetainSize=-1 and reduceRetainSize=-1
> 2011-04-18 11:45:08,663 INFO org.apache.hadoop.mapred.TaskTracker: Starting
> tasktracker with owner as mapred
> 2011-04-18 11:45:08,665 WARN org.apache.hadoop.mapred.TaskTracker: Task
> Tracker local File /app/hadoop/tmp/mapred/local does not exist.
> 2011-04-18 11:45:08,665 ERROR org.apache.hadoop.mapred.TaskTracker: Can not
> start task tracker because
> org.apache.hadoop.util.DiskChecker$DiskErrorException: all local directories
> are not writable
>     at
> org.apache.hadoop.mapred.TaskTracker.checkLocalDirs(TaskTracker.java:3495)
>     at
> org.apache.hadoop.mapred.TaskTracker.initializeDirectories(TaskTracker.java:659)
>     at
> org.apache.hadoop.mapred.TaskTracker.initialize(TaskTracker.java:734)
>     at org.apache.hadoop.mapred.TaskTracker.<init>(TaskTracker.java:1431)
>     at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:3521)
>
> 2011-04-18 11:45:08,670 INFO org.apache.hadoop.mapred.TaskTracker:
> SHUTDOWN_MSG:
> /************************************************************
> SHUTDOWN_MSG: Shutting down TaskTracker at matthew-desktop/127.0.1.1
>
>
> mapred-site.xml:
> <?xml version="1.0"?>
> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
> <configuration>
>     <property>
>       <name>mapred.job.tracker</name>
>       <value>localhost:50033</value>
>     </property>
>         <property>
>       <name>mapred.system.dir</name>
>       <value>/mapred/system</value>
>     </property>
>         <property>
>       <name>mapred.local.dir</name>
>       <value>/app/hadoop/tmp/mapred/local</value>
>     </property>
>          <property>
>       <name>mapred.tmp.dir</name>
>       <value>/app/hadoop/tmp/mapred/temp</value>
>     </property>
> </configuration>v
>
>
> matthew@matthew-desktop:~$ sudo ls -ltrh /app/hadoop/tmp/mapred/
> total 12K
> drwxr-xr-x 2 mapred hadoop 4.0K 2011-04-18 11:24 local
> drwxr-xr-x 2 mapred hadoop 4.0K 2011-04-18 11:31 system
> drwxr-xr-x 2 mapred hadoop 4.0K 2011-04-18 11:31 temp
>
>
>
> Any ideas?
>
>
>
>
>
>
>

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