Hi,
Please check logs, there might be some error occured while starting daemons
Please post the error
On Thu, Mar 3, 2011 at 10:24 AM, Shivani Rao <sg...@purdue.edu> wrote:
> Problems running local installation of hadoop on single-node cluster
>
> I followed instructions given by tutorials to run hadoop-0.21 on a single
> node cluster.
>
> The first problem I encountered was that of HADOOP-6953. Thankfully that
> has got fixed.
>
> The other problem I am facing is that the datanode does not start. This I
> guess because when I run stop-dfs.sh for datanode, I get a message
> "no datanode to stop"
>
> I am wondering if it is related remotely to the difference in the IP
> addresses on my computer
>
> 127.0.0.1 localhost
> 127.0.1.1 my-laptop
>
> Although I am aware of this, I do not know how to fix this.
>
> I am unable to even run a simple pi estimate example on the haddop
> installation
>
> This is the output I get is
>
> bin/hadoop jar hadoop-mapred-examples-0.21.0.jar pi 10 10
> Number of Maps = 10
> Samples per Map = 10
> 11/03/02 23:38:47 INFO security.Groups: Group mapping
> impl=org.apache.hadoop.security.ShellBasedUnixGroupsMapping;
> cacheTimeout=300000
>
> And nothing else for long long time.
>
> I have not set the dfs.namedir and dfs.datadir in my hdfs-site.xml. But
> After running bin/hadoop namenode -format, I see that the tmp.dir has a
> folder with dfs/data and dfs/data folders for the two directories.
>
> what Am I doing wrong? Any help is appreciated.
>
> Here are my configuration files
>
> Regards,
> Shivani
>
> hdfs-site.xml
>
> <property>
> <name>dfs.replication</name>
> <value>1</value>
> <description>Default block replication.
> The actual number of replications can be specified when the file is
> created.
> The default is used if replication is not specified in create time.
> </description>
> </property>
>
>
> core-site.xml
>
> <property>
> <name>hadoop.tmp.dir</name>
> <value>/usr/local/hadoop-${user.name}</value>
> <description>A base for other temporary directories.</description>
> </property>
>
> <property>
> <name>fs.default.name</name>
> <value>hdfs://localhost:54310</value>
> <description>The name of the default file system. A URI whose
> scheme and authority determine the FileSystem implementation. The
> uri's scheme determines the config property (fs.SCHEME.impl) naming
> the FileSystem implementation class. The uri's authority is used to
> determine the host, port, etc. for a filesystem.</description>
> </property>
>
>
>
> mapred-site.xml
>
> <property>
> <name>mapred.job.tracker</name>
> <value>localhost:54311</value>
> <description>The host and port that the MapReduce job tracker runs
> at. If "local", then jobs are run in-process as a single map
> and reduce task.
> </description>
> </property>
>
>
>
>
