In hadoop-default.xml you should find:
<property>
<name>hadoop.tmp.dir</name>
<value>/tmp/hadoop-${user.name}</value>
<description>A base for other temporary directories.</description>
</property>
<property>
<name>dfs.name.dir</name>
<value>${hadoop.tmp.dir}/dfs/name</value>
<description>Determines where on the local filesystem the DFS name node
should store the name table. If this is a comma-delimited list
of directories then the name table is replicated in all of the
directories, for redundancy. </description>
</property>
<property>
<name>dfs.data.dir</name>
<value>${hadoop.tmp.dir}/dfs/data</value>
<description>Determines where on the local filesystem an DFS data node
should store its blocks. If this is a comma-delimited
list of directories, then data will be stored in all named
directories, typically on different devices.
Directories that do not exist are ignored.
</description>
</property>
and some other properties that use the hadoop.tmp.dir prefix. What
subdirectories did hadoop create inside /tmp/hadoop-${user.name}?
-Michael
On 6/14/07 10:39 PM, "Phantom" <[EMAIL PROTECTED]> wrote:
> Hi
>
> When I format my namenode it does format the directory specified under
> dfs.name.dir. However there is a folder under /tmp called hadoop-alakshman.
> What is this for ? Will all blocks be stored under /var/hadoop somewhere.
> Here is a copy of hadoop-site.xml
>
> <?xml version="1.0"?>
> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
>
> <!-- Put site-specific property overrides in this file. -->
>
> <configuration>
> <property>
> <name>dfs.name.dir</name>
> <value>/var/hadoop</value>
> </property>
>
> <property>
> <name>fs.default.name</name>
> <value>hdfs://hadoop001.sf2p.com:9000</value>
> </property>
>
> <property>
> <name>mapred.job.tracker</name>
> <value>hadoop001.sf2p.com:50029</value>
> </property>
>
> <property>
> <name>mapred.job.tracker.info.port</name>
> <value>50030</value>
> </property>
>
> <property>
> <name>mapred.child.java.opts</name>
> <value>-Xmx1024M</value>
> </property>
>
> <property>
> <name>mapred.min.split.size</name>
> <value>65536</value>
> </property>
>
> <property>
> <name>dfs.replication</name>
> <value>3</value>
> </property>
>
> </configuration>
