Hi,
I've tried setting up hadoop on a single computer, and I'm
experiencing a problem with the datanode. when i run the start-all.sh
script it seems to run smoothly, including setting up the datanode.
The problem occurs when I try to use the hdfs for example running
"bin/hadoop dfs -put <localsrc> <dst>".
It gives me the following error:
put: java.io.IOException: Failed to create file
/user/chenfren/mytest/.slaves.crc on client 127.0.0.1 because there
were not enough datanodes available. Found 0 datanodes but
MIN_REPLICATION for the cluster is configured to be 1.
I'm not sure if the "/user/chenfren/mytest/" refers to the hdfs or
not. If not then "/user/chenfren" doesn't exist, and I don't have
write permissions to /usr/ anyway. So if this is the case, how do I
change this dir?
This is the hadoop-site.xml I use:
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>hadoop.tmp.dir</name>
<value>/tmp/hadoop-${user.name}</value>
</property>
<property>
<name>fs.default.name</name>
<value>localhost:54310</value>
</property>
<property>
<name>mapred.job.tracker</name>
<value>localhost:54311</value>
</property><property>
<name>dfs.replication</name>
<value>8</value>
</property>
<property>
<name>mapred.child.java.opts</name>
<value>-Xmx512m</value>
</property>
</configuration>
Can anyone advise?
