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greenplum安装、扩容、缩容、HA PDF 下载
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1GreenPlum的安装
计划在VM虚拟机中安装如下的节点：先安装前3台。其余后续再扩容安装。
IP地址 主机名称 备注
10.75.5.110 gpmaster Master 节点
10.75.5.111 segment1 Segment 节点
10.75.5.112 segment2 Segment节点
10.75.5.113 segment3 Segment 节点-暂不安装
10.75.5.114 segment4 Segment节点-暂不安装
10.75.5.109 standbymaster StandbyMaster节点-暂不安装
1.1修改hostname
修改：/etc/sysconfig/network，增加主机名称
NETWORKING=yes
HOSTNAME=gpmaster
1.2修改etc/hosts文件
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
10.72.5.110 gpmaster
10.72.5.111 segment1
10.72.5.112 segment2
1.3关闭防火墙
关闭防火墙，或者开启也可以，开启需求配置GP更多东西。但是建议关闭防火墙。
root用户执行如下命令，检查防火墙状态：
/sbin/chkconfig --list iptables
关闭防火墙：
/sbin/chkconfig iptables off
1.4修改系统内存参数/etc/sysctl.conf
设置系统参数，vi /etc/sysctl.conf
kernel.shmmax = 500000000
kernel.shmmni = 4096
kernel.shmall = 4000000000
kernel.sem = 250 512000 100 2048
kernel.sysrq = 1
kernel.core_uses_pid = 1
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.msgmni = 2048
net.ipv4.tcp_syncookies = 1
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_max_syn_backlog = 4096
net.ipv4.conf.all.arp_filter = 1
net.ipv4.ip_local_port_range = 1025 65535
net.core.netdev_max_backlog = 10000
net.core.rmem_max = 2097152
net.core.wmem_max = 2097152
vm.overcommit_memory = 2
用下面的参数也可也。
#for greenplum begin
xfs_mount_options = rw,noatime,inode64,allocsize=16m
kernel.shmmax = 500000000
kernel.shmall = 4000000000
kernel.shmmni = 4096
kernel.sem = 250 512000 100 2048
kernel.sysrq = 1
kernel.core_uses_pid = 1
kernel.msgmni = 2048
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_max_syn_backlog = 4096
net.ipv4.conf.all.arp_filter = 1
net.ipv4.ip_local_port_range = 1025 65535
net.core.netdev_max_backlog = 10000
vm.overcommit_memory = 2
#for greenplum end
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