Hi Saptarshi,

Can you please ssh into the JobTracker node and check that this
directory is mounted, writable by the hadoop user, and not full?

-Todd

On Fri, Feb 19, 2010 at 2:13 PM, Saptarshi Guha
<saptarshi.g...@gmail.com> wrote:
> Hello,
> Not sure if i should post this here or on Cloudera's message board,
> but here goes.
> When I run EC2 using the latest CDH2 and Hadoop 0.20 (by settiing the
> env variables are hadoop-ec2),
> and launch a job
> hadoop jar ...
>
> I get the following error
>
>
> 10/02/19 17:04:55 WARN mapred.JobClient: Use GenericOptionsParser for
> parsing the arguments. Applications should implement Tool for the
> same.
> org.apache.hadoop.ipc.RemoteException: java.io.IOException: No valid
> local directories in property: mapred.local.dir
>        at 
> org.apache.hadoop.conf.Configuration.getLocalPath(Configuration.java:975)
>        at org.apache.hadoop.mapred.JobConf.getLocalPath(JobConf.java:279)
>        at 
> org.apache.hadoop.mapred.JobInProgress.<init>(JobInProgress.java:256)
>        at 
> org.apache.hadoop.mapred.JobInProgress.<init>(JobInProgress.java:240)
>        at org.apache.hadoop.mapred.JobTracker.submitJob(JobTracker.java:3026)
>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>        at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>        at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>        at java.lang.reflect.Method.invoke(Method.java:597)
>        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:508)
>        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:966)
>        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:962)
>        at java.security.AccessController.doPrivileged(Native Method)
>        at javax.security.auth.Subject.doAs(Subject.java:396)
>        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:960)
>
>        at org.apache.hadoop.ipc.Client.call(Client.java:740)
>        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220)
>        at org.apache.hadoop.mapred.$Proxy0.submitJob(Unknown Source)
>        at 
> org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:841)
>        at org.apache.hadoop.mapreduce.Job.submit(Job.java:432)
>
>        at org.godhuli.f.RHMR.submitAndMonitorJob(RHMR.java:195)
>
> but the value  of mapred.local.dir is "/mnt/hadoop/mapred/local"
>
> Any ideas?
>

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