hadoop-yarn-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From 牛兆捷 <nzjem...@gmail.com>
Subject Re: Problems of runing with yarn-2.0.X
Date Thu, 20 Jun 2013 07:07:54 GMT
I think it may occur at the reduce phase. Too many shuffle fetch at the
same time?

2013/6/20 Arun C Murthy <acm@hortonworks.com>

> Where are seeing the error? In the tasks? Or, during job submission?
>
> On Jun 19, 2013, at 8:43 PM, Li Shengmei <lishengmei@ict.ac.cn> wrote:
>
> > Hi, all
> >
> >         I am doing some experiments with yarn-2.0.x. I found some
> problems
> > as follows, can anyone give suggestion?
> >
> >
> >
> > 1.       I set up hadoop environment with 2 nodes (1 as namenode ,1 as
> > datanode). The application(wordcount) runs successfully.
> >
> > 2.       I set up hadoop environment with 3 nodes or more(1 as namenode,
> > others as datanodes).
> >
> > The application sometimes runs successfully, sometimes runs failed. The
> > failed logs are
> >
> > "Exception running child : java.net.ConnectException: Call From
> > hadoop3.localdomain/10.3.1.63 to localhost:37497 failed on connection
> > exception: java.net.ConnectException: Connection refused; For more
> details
> > see:  http://wiki.apache.org/hadoop/ConnectionRefused"
> >
> >
> >
> > I checked the configurations and firewall, there are no problems. I use
> the
> > wordcount application in Hadoop examples, so the application is also OK.
> >
> >
> >
> > Does anyone come across the problem? Any suggestions are welcome. Thanks
> a
> > lot.
> >
> >
> >
> > Shengmei
> >
>
> --
> Arun C. Murthy
> Hortonworks Inc.
> http://hortonworks.com/
>
>
>


-- 
*Sincerely,*
*Zhaojie*
*
*

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message