Dell PowerEdge C5220 Отчет о тестировании - Страница 9
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service dnsmasq start
14. Install the ntpd time server to provide a common time source for the nodes:
yum install ntpd
15. Modify the configuration file /etc/ntp.conf to use Internet time sources, and to be a time service on the nodes
network. For example:
# Hosts on local network are less restricted.
restrict 192.168.1.0 mask 255.255.255.0
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
server 0.pool.ntp.org
16. Start the NTP server:
chkconfig ntpd on
service ntpd start
17. Generate an SSH public-key pair with, for example, no password:
ssh-keygen -t dsa -N ""
18. Reboot the server.
Configuring the C5220 Hadoop nodes
1. Install the base-installation of CentOS 6.2 x86_64 following the steps in the section CentOS base installation.
2. Configure one network interface, e.g. em1, to access the Hadoop network of C5220 nodes with, for example, IP
address 192.168.1.31 and CIDR prefix of 24.
3. Configure the system to synchronize its time with the NTP service on the auxiliary server. Replace the server
lines in /etc/ntp.conf with this:
server 192.168.1.10
4. Configure the yum updater to use the cluster's HTTP proxy:
echo "proxy=http://192.168.1.10:3128/" >> /etc/yum.conf
5. Copy the auxiliary server's public SSH key to the node to allow easy remote management:
mkdir /root/.ssh
chmod 700 /root/.ssh
scp 192.168.1.10:/root/.ssh/id_dsa.pub /root/.ssh/authorized_keys
6. Install CentOS updates:
yum update
7. Reboot the server:
shutdown –r now
8. Repeat steps 1 through 7 for the remaining nodes.
Cloudera Hadoop (CDH3u3) installation using Cloudera manager (3.7.5)
1. Log onto the auxiliary server as root.
2. Download and transfer the free edition of the Cloudera Manager installer, version 3.7.5, for CentOS from
Cloudera.com to the auxiliary server.
3. Run the Cloudera Manager installer:
./cloudera-manager-installer.bin
4. On the Cloudera Manager README screen, read the installation overview, and select Next.
5. On the Cloudera Manager (Free Edition) License screen, review the license, and select Next.
6. On the next screen, select yes to accept this license.
7. On the Oracle Binary Code License Agreement screen, review the license, and select Next.
Dell PowerEdge C5220: Hadoop MapReduce Performance
A Principled Technologies test report 9