top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

DNS pre request for hadoop install

+1 vote
298 views

I am trying to use ambari (hortonwoks) to install hadoop. One step is to pre-config DNS as manual link below. http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.0.9.1/bk_using_Ambari_book/content/ambari-chap1-5-5.html

Since I am only using internal network, not sure how to config fully.qualified.domain.name. My hostname -f only shows localhost. And in /etc/sysconfig/network, it give HOSTNAME=localhost.localdomain

If anyone already get hadoop running, what is the real DNS requests for hadoop. Any suggestion, thanks a lot.

posted Apr 2, 2014 by Dewang Chaudhary

Looking for an answer?  Promote on:
Facebook Share Button Twitter Share Button LinkedIn Share Button

Similar Questions
+9 votes
Explain and mention standard port no's for DNS, SMTP, HTTP, FTP, Hub, Switch, Firewall, BOOTP, DHCP, SNMP?

Explain the following terms: DNS, SMTP, HTTP, FTP, Hub, Switch, Firewall, BOOTP, DHCP, SNMP?
Please mention the standard port numbers for these terms.

+1 vote
How to install Snappy for Hadoop

I am running on Hadoop 1.0.4 and I would like to use Snappy for map output compression. I am adding the configurations:

configuration.setBoolean("mapred.compress.map.output", true);
 configuration.set("mapred.map.output.compression.codec", "org.apache.hadoop.io.compress.SnappyCodec");

And Ive added libsnappy.so.1 to $HADOOP_HOME/lib/native/Linux-amd64-64/
Still, all map tasks fail with "native snappy library not available". Could anyone elaborate on how to install Snappy for Hadoop ?

0 votes
What is advantage of maintaining local/enterprise DNS over google DNS i.e. 8.8.8.8 ?

I want to understand trade-off between using local v/s google DNS.

+1 vote
DNS: Does the DNS response carry only IP address of server or it can include port also ?

I am running a web server not at standard port 80 then in this case how it can accessed by outsider/visitor without knowing the port number ?

...