Hi,
I am creating a small Hadoop (0.19.1) cluster (2 nodes to start), each
of the machines has 2 NIC cards (1 external facing, 1 internal
facing). It is important that Hadoop run and communicate on the
internal facing NIC (because the external facing NIC costs me money),
also the internal is more protected.
So I found a couple of parameters both in the mail archives and on the
Hadoop core site, but they don't seem to do anything as the result is
always the same, it resolves to the external IP, and name (which is in
DNS).
<property>
<name>dfs.datanode.dns.interface</name>
<value>en1</value>
<description>The name of the Network Interface from which a data
node should
report its IP address.
</description>
</property>
<property>
<name>dfs.datanode.dns.nameserver</name>
<value>DN</value>
<description>The host name or IP address of the name server (DNS)
which a DataNode should use to determine the host name used by the
NameNode for communication and display purposes.
</description>
</property>
<property>
<name>mapred.tasktracker.dns.interface</name>
<value>en1</value>
<description>The name of the Network Interface from which a task
tracker should report its IP address.
</description>
</property>
<property>
<name>mapred.tasktracker.dns.nameserver</name>
<value>DN</value>
<description>The host name or IP address of the name server (DNS)
which a TaskTracker should use to determine the host name used by
the JobTracker for communication and display purposes.
</description>
</property>
Any help would be greatly appreciated.
Thank you in advance.
-John
John Martyniak
Before Dawn Solutions, Inc.
9457 S. University Blvd #266
Highlands Ranch, CO 80126
o: 877-499-1562
c: 303-522-1756
e: j...@beforedawnsoutions.com
w: http://www.beforedawnsolutions.com
