##1)Environment initialization Note：At least three nodes, the Master node at least 6G of memory, and the other two at least 4G of memory |--------------|-----------|-------------|----------------|-----------|--------------------|-------------| | Host | Server | Agent | zookeeper | namenode | secondarynamenode | datanode | |--------------|-----------|-------------|----------------|-----------|--------------------|-------------| |cdh01 Master | Y | Y | Y | Y | | | |--------------|-----------|-------------|----------------|-----------|--------------------|-------------| |cdh02 slave | | Y | Y | | Y | Y | |--------------|-----------|-------------|----------------|-----------|--------------------|-------------| |cdh03 slave | | Y | Y | | | Y | |--------------|-----------|-------------|----------------|-----------|--------------------|-------------| |cdh04 slave | | Y | Y | | | Y | |--------------|-----------|-------------|----------------|-----------|--------------------|-------------| |cdh05 slave | | Y | Y | | | Y | |______________|___________|_____________|________________|___________|____________________|_____________| ####################################### ##Name resolution on every nodes ######################## cat > /etc/hosts <>/etc/sysctl.conf echo 'net.ipv6.conf.default.disable_ipv6 = 1' >>/etc/sysctl.conf echo 'vm.swappiness = 0' >>/etc/sysctl.conf sysctl -p echo never > /sys/kernel/mm/transparent_hugepage/defrag echo 'echo never > /sys/kernel/mm/transparent_hugepage/defrag' >> /etc/rc.local chmod +x /etc/rc.d/rc.local groupadd hadoop -g 700 useradd hadoop -g hadoop -u 700 echo "hadoop123"|passwd --stdin hadoop echo 'hadoop ALL=(ALL) NOPASSWD: ALL' >>/etc/sudoers echo "ulimit -SHn 204800" >> /etc/rc.local echo "ulimit -SHu 204800" >> /etc/rc.local cat >> /etc/security/limits.conf << EOF * soft nofile 204800 * hard nofile 204800 * soft nproc 204800 * hard nproc 204800 EOF #Install jdk on every nodes wget http://god.nongdingbang.net/downloads/auto_jdk_1.8.sh sh auto_jdk_1.8.sh #Install java-jdbc on every nodes cd /home/tools wget http://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java-5.1.39.tar.gz tar zxvf mysql-connector-java-5.1.39.tar.gz mkdir /usr/share/java/ \cp mysql-connector-java-5.1.39/mysql-connector-java-5.1.39-bin.jar /usr/share/java/mysql-connector-java.jar ######################################################################################################## ##2)Deploy local yum for CDH on cdh01 yum -y install epel-release yum -y install nginx createrepo cat > /etc/nginx/nginx.conf < /etc/nginx/conf.d/default.conf < /etc/yum.repos.d/cloudera-cm.repo < /etc/my.cnf< /etc/cloudera-scm-server/db.properties < /etc/cloudera-scm-agent/config.ini< 专注于为中小企业提供网站设计、网站建设服务,电脑端+手机端+微信端的三站合一,更高效的管理,为中小企业金乡免费做网站提供优质的服务。我们立足成都，凝聚了一批互联网行业人才，有力地推动了千余家企业的稳健成长，帮助中小企业通过网站建设实现规模扩充和转变。
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