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From Prashant Sharma <prashant.ii...@gmail.com>
Subject Re: Re: [help]how to stop HDFS
Date Tue, 29 Nov 2011 16:22:48 GMT
I mean, you have to export the variables

export HADOOP_CONF_DIR=/path/to/your/configdirectory.

also export HADOOP_HDFS_HOME ,HADOOP_COMMON_HOME. before your run your
command. I suppose this should fix the problem.
-P

On Tue, Nov 29, 2011 at 6:23 PM, cat fa <boost.subscribing@gmail.com> wrote:

> it didn't work. It gave me the Usage information.
>
> 2011/11/29 hailong.yang1115 <hailong.yang1115@gmail.com>
>
> > Try $HADOOP_PREFIX_HOME/bin/hdfs namenode stop --config $HADOOP_CONF_DIR
> > and $HADOOP_PREFIX_HOME/bin/hdfs datanode stop --config $HADOOP_CONF_DIR.
> > It would stop namenode and datanode separately.
> > The HADOOP_CONF_DIR is the directory where you store your configuration
> > files.
> > Hailong
> >
> >
> >
> >
> > ***********************************************
> > * Hailong Yang, PhD. Candidate
> > * Sino-German Joint Software Institute,
> > * School of Computer Science&Engineering, Beihang University
> > * Phone: (86-010)82315908
> > * Email: hailong.yang1115@gmail.com
> > * Address: G413, New Main Building in Beihang University,
> > *              No.37 XueYuan Road,HaiDian District,
> > *              Beijing,P.R.China,100191
> > ***********************************************
> >
> > From: cat fa
> > Date: 2011-11-29 20:22
> > To: common-user
> > Subject: Re: [help]how to stop HDFS
> > use $HADOOP_CONF or $HADOOP_CONF_DIR ? I'm using hadoop 0.23.
> >
> > you mean which class? the class of hadoop or of java?
> >
> > 2011/11/29 Prashant Sharma <prashant.iiith@gmail.com>
> >
> > > Try making $HADOOP_CONF point to right classpath including your
> > > configuration folder.
> > >
> > >
> > > On Tue, Nov 29, 2011 at 3:58 PM, cat fa <boost.subscribing@gmail.com>
> > > wrote:
> > >
> > > > I used the command :
> > > >
> > > > $HADOOP_PREFIX_HOME/bin/hdfs start namenode --config $HADOOP_CONF_DIR
> > > >
> > > > to sart HDFS.
> > > >
> > > > This command is in Hadoop document (here
> > > > <
> > > >
> > >
> >
> http://hadoop.apache.org/common/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/ClusterSetup.html
> > > > >)
> > > >
> > > > However, I got errors as
> > > >
> > > > Exception in thread "main" java.lang.NoClassDefFoundError:start
> > > >
> > > > Could anyone tell me how to start and stop HDFS?
> > > >
> > > > By the way, how to set Gmail so that it doesn't top post my reply?
> > > >
> > >
> >
>

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