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From Mingjiang Shi <m...@gopivotal.com>
Subject Re: App Master issue.
Date Thu, 06 Mar 2014 01:36:00 GMT
Hi Sai,
A few questions:
1. which version of hadoop are you using? yarn.resourcemanager.hostname is
a new configuration which is not available old versions.
2. Does your yarn-site.xml contains yarn.resourcemanager.scheduler.address?
If yes, what's the value?
3. or you could access http://<resource_mgr>:8088/conf to check the value
of yarn.resourcemanager.scheduler.address.



On Thu, Mar 6, 2014 at 3:29 AM, Sai Prasanna <ansaiprasanna@gmail.com>wrote:

> Hi,
>
> I have a five node cluster. One master and 4 slaves. Infact master also
> has a data node running. When ever app master is launched in the master
> node, simple wordcount program runs fine. But if it is launched in some
> slave nodes, the progress of the application gets hung.
> The problem is, though i have set the yarn.resourcemanager.hostname to the
> ip-address of the master, the slave connects only to the default,
> 0.0.0.0:8030.
> What could be the reason ???
>
> I get the following message in the logs of app.master in web-UI.
> *"...Configuration: job.xml:an attempt to override final parameter:
> mapreduce.job.end-notification.max.retry.interval;  Ignoring.*
>
>
> *2014-03-05 20:15:50,597 WARN [main] org.apache.hadoop.conf.Configuration:
> job.xml:an attempt to override final parameter:
> mapreduce.job.end-notification.max.attempts;  Ignoring. 2014-03-05
> 20:15:50,603 INFO [main] org.apache.hadoop.yarn.client.RMProxy: Connecting
> to ResourceManager at /0.0.0.0:8030 <http://0.0.0.0:8030>2014-03-05
> 20:15:56,632 INFO [main] org.apache.hadoop.ipc.Client: Retrying connect to
> server: 0.0.0.0/0.0.0.0:8030 <http://0.0.0.0/0.0.0.0:8030>. Already tried 0
> time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10,
> sleepTime=1000 MILLISECONDS)"*
>
>
> --
> *Sai Prasanna. AN*
> *II M.Tech (CS), SSSIHL*
>
>
> *Entire water in the ocean can never sink a ship, Unless it gets inside.
> All the pressures of life can never hurt you, Unless you let them in.*
>



-- 
Cheers
-MJ

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